{ "algorithm": "sun", "publishedDate": "2026-09-29", "earthModel": "WGS84 latitude and longitude; UT1 read from the UTC given", "sources": [ { "role": "Rise, set, transit and civil twilight", "name": "Astronomical Applications API 4.0.1: Complete Sun and Moon Data for One Day", "by": "US Naval Observatory. Every request and response is in /sun/sources/usno.jsonl", "url": "https://aa.usno.navy.mil/data/api", "licence": "Public domain" }, { "role": "Position", "name": "Astronomical Applications API 4.0.1: Celestial Navigation Data, Hc and Zn", "by": "US Naval Observatory. USNO lists the sun only when it's up; below the horizon, Skyfield answers", "url": "https://aa.usno.navy.mil/data/api", "licence": "Public domain" }, { "role": "Nautical and astronomical twilight", "name": "Skyfield 1.55, almanac.dark_twilight_day, on JPL's DE421", "by": "Brandon Rhodes. USNO's API doesn't give these. Checked against USNO's rise, set and civil twilight on every case. Every call is in /sun/sources/skyfield.txt", "url": "https://rhodesmill.org/skyfield/", "licence": "MIT" }, { "role": "Method", "name": "Astronomical Algorithms, 2nd edition, 1998, chapters 15 and 25", "by": "Jean Meeus. The method to follow; no value in the file comes from it", "url": "", "licence": "" } ], "operations": [ { "id": "events", "gives": "Rise, set, transit and twilight in a window", "inputs": [ "latitudeInDegrees", "longitudeInDegrees", "startUtc", "windowInHours" ], "outputs": [ "riseUtc", "setUtc", "transitUtc", "civilDawnUtc", "civilDuskUtc", "nauticalDawnUtc", "nauticalDuskUtc", "astronomicalDawnUtc", "astronomicalDuskUtc", "isAlwaysUp", "isAlwaysDown" ] }, { "id": "position", "gives": "The sun's azimuth and altitude from a place", "inputs": [ "latitudeInDegrees", "longitudeInDegrees", "instantUtc" ], "outputs": [ "azimuthInDegrees", "altitudeInDegrees" ] } ], "fields": { "latitudeInDegrees": "−90 to 90, north positive", "longitudeInDegrees": "−180 to 180, east positive", "startUtc": "The window's start, ISO 8601 with Z. Usually midnight UTC; a few cases start at a place's local midnight.", "windowInHours": "The window's length: 24 in every case here. More than 0 and at most 48.", "instantUtc": "An instant, ISO 8601 with Z, read as UT1", "riseUtc": "The first moment in the window the top of the sun reaches the horizon: its centre at −0.833°, geometric. null if it doesn't happen in the window. To the second, compared within 60 s: USNO gives the minute.", "setUtc": "As rise, going down", "transitUtc": "The first moment in the window the sun crosses the meridian, highest in the sky. Left out when the sun stays down all window, where USNO gives none.", "civilDawnUtc": "Centre at −6°, rising. null if it doesn't happen in the window", "civilDuskUtc": "Centre at −6°, setting", "nauticalDawnUtc": "Centre at −12°, rising", "nauticalDuskUtc": "Centre at −12°, setting", "astronomicalDawnUtc": "Centre at −18°, rising", "astronomicalDuskUtc": "Centre at −18°, setting", "isAlwaysUp": "true when the sun is above −0.833° for the whole window", "isAlwaysDown": "true when it's below −0.833° for the whole window", "azimuthInDegrees": "0 to 360, clockwise from north. Left out near the zenith.", "altitudeInDegrees": "−90 to 90, of the sun's centre, geometric: no refraction" }, "tolerances": { "riseUtc": "60", "setUtc": "60", "transitUtc": "60", "civilDawnUtc": "60", "civilDuskUtc": "60", "nauticalDawnUtc": "60", "nauticalDuskUtc": "60", "astronomicalDawnUtc": "60", "astronomicalDuskUtc": "60", "azimuthInDegrees": "0.01", "altitudeInDegrees": "0.01" }, "cases": [ { "id": "usno-events-vancouver-local-day", "operation": "events", "tags": [ "published", "reference", "edge" ], "note": "A window from local midnight, 08:00Z.", "input": { "latitudeInDegrees": 49.2827, "longitudeInDegrees": -123.1207, "startUtc": "2026-09-29T08:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": "2026-09-29T14:10:00Z", "setUtc": "2026-09-30T01:55:00Z", "transitUtc": "2026-09-29T20:03:00Z", "civilDawnUtc": "2026-09-29T13:38:00Z", "civilDuskUtc": "2026-09-30T02:27:00Z", "nauticalDawnUtc": "2026-09-29T13:00:45Z", "nauticalDuskUtc": "2026-09-30T03:03:32Z", "astronomicalDawnUtc": "2026-09-29T12:22:46Z", "astronomicalDuskUtc": "2026-09-30T03:41:21Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-suva-local-day", "operation": "events", "tags": [ "published", "reference", "edge" ], "input": { "latitudeInDegrees": -18.1248, "longitudeInDegrees": 178.4501, "startUtc": "2026-03-19T12:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": "2026-03-19T18:10:00Z", "setUtc": "2026-03-20T06:17:00Z", "transitUtc": "2026-03-20T00:14:00Z", "civilDawnUtc": "2026-03-19T17:48:00Z", "civilDuskUtc": "2026-03-20T06:39:00Z", "nauticalDawnUtc": "2026-03-19T17:22:51Z", "nauticalDuskUtc": "2026-03-20T07:04:24Z", "astronomicalDawnUtc": "2026-03-19T16:57:29Z", "astronomicalDuskUtc": "2026-03-20T07:29:45Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-tonga-local-day", "operation": "events", "tags": [ "published", "reference", "edge" ], "note": "A window from local midnight across the date line.", "input": { "latitudeInDegrees": -21.1394, "longitudeInDegrees": -175.2018, "startUtc": "2026-12-20T11:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": "2026-12-20T16:56:00Z", "setUtc": "2026-12-21T06:21:00Z", "transitUtc": "2026-12-20T23:39:00Z", "civilDawnUtc": "2026-12-20T16:31:00Z", "civilDuskUtc": "2026-12-21T06:46:00Z", "nauticalDawnUtc": "2026-12-20T16:01:31Z", "nauticalDuskUtc": "2026-12-21T07:15:43Z", "astronomicalDawnUtc": "2026-12-20T15:30:48Z", "astronomicalDuskUtc": "2026-12-21T07:46:27Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-tokyo-local-day", "operation": "events", "tags": [ "published", "reference", "edge" ], "input": { "latitudeInDegrees": 35.6762, "longitudeInDegrees": 139.6503, "startUtc": "2026-06-20T15:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": "2026-06-20T19:26:00Z", "setUtc": "2026-06-21T10:00:00Z", "transitUtc": "2026-06-21T02:43:00Z", "civilDawnUtc": "2026-06-20T18:56:00Z", "civilDuskUtc": "2026-06-21T10:31:00Z", "nauticalDawnUtc": "2026-06-20T18:18:23Z", "nauticalDuskUtc": "2026-06-21T11:07:53Z", "astronomicalDawnUtc": "2026-06-20T17:36:55Z", "astronomicalDuskUtc": "2026-06-21T11:49:22Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-alert-2026-01-21", "operation": "events", "tags": [ "published", "reference", "polar" ], "input": { "latitudeInDegrees": 82.5018, "longitudeInDegrees": -62.3481, "startUtc": "2026-01-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": null, "setUtc": null, "civilDawnUtc": null, "civilDuskUtc": null, "nauticalDawnUtc": null, "nauticalDuskUtc": null, "astronomicalDawnUtc": "2026-01-21T11:12:34Z", "astronomicalDuskUtc": "2026-01-21T21:31:57Z", "isAlwaysUp": false, "isAlwaysDown": true } }, { "id": "usno-events-alert-2026-02-21", "operation": "events", "tags": [ "published", "reference", "polar" ], "input": { "latitudeInDegrees": 82.5018, "longitudeInDegrees": -62.3481, "startUtc": "2026-02-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": null, "setUtc": null, "civilDawnUtc": "2026-02-21T12:46:00Z", "civilDuskUtc": "2026-02-21T20:04:00Z", "nauticalDawnUtc": "2026-02-21T09:33:42Z", "nauticalDuskUtc": "2026-02-21T23:18:37Z", "isAlwaysUp": false, "isAlwaysDown": true } }, { "id": "usno-events-alert-2026-03-21", "operation": "events", "tags": [ "published", "reference", "polar" ], "input": { "latitudeInDegrees": 82.5018, "longitudeInDegrees": -62.3481, "startUtc": "2026-03-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": "2026-03-21T09:41:00Z", "setUtc": "2026-03-21T22:58:00Z", "transitUtc": "2026-03-21T16:16:00Z", "civilDawnUtc": "2026-03-21T06:30:00Z", "civilDuskUtc": "2026-03-21T01:59:00Z", "nauticalDawnUtc": null, "nauticalDuskUtc": null, "astronomicalDawnUtc": null, "astronomicalDuskUtc": null, "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-alert-2026-04-21", "operation": "events", "tags": [ "published", "reference", "polar" ], "input": { "latitudeInDegrees": 82.5018, "longitudeInDegrees": -62.3481, "startUtc": "2026-04-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": null, "setUtc": null, "transitUtc": "2026-04-21T16:08:00Z", "civilDawnUtc": null, "civilDuskUtc": null, "nauticalDawnUtc": null, "nauticalDuskUtc": null, "astronomicalDawnUtc": null, "astronomicalDuskUtc": null, "isAlwaysUp": true, "isAlwaysDown": false } }, { "id": "usno-events-alert-2026-05-21", "operation": "events", "tags": [ "published", "reference", "polar" ], "input": { "latitudeInDegrees": 82.5018, "longitudeInDegrees": -62.3481, "startUtc": "2026-05-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": null, "setUtc": null, "transitUtc": "2026-05-21T16:06:00Z", "civilDawnUtc": null, "civilDuskUtc": null, "nauticalDawnUtc": null, "nauticalDuskUtc": null, "astronomicalDawnUtc": null, "astronomicalDuskUtc": null, "isAlwaysUp": true, "isAlwaysDown": false } }, { "id": "usno-events-alert-2026-06-21", "operation": "events", "tags": [ "published", "reference", "polar", "edge" ], "note": "Midnight sun: no rise or set, always up, and a transit.", "input": { "latitudeInDegrees": 82.5018, "longitudeInDegrees": -62.3481, "startUtc": "2026-06-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": null, "setUtc": null, "transitUtc": "2026-06-21T16:11:00Z", "civilDawnUtc": null, "civilDuskUtc": null, "nauticalDawnUtc": null, "nauticalDuskUtc": null, "astronomicalDawnUtc": null, "astronomicalDuskUtc": null, "isAlwaysUp": true, "isAlwaysDown": false } }, { "id": "usno-events-alert-2026-07-21", "operation": "events", "tags": [ "published", "reference", "polar" ], "input": { "latitudeInDegrees": 82.5018, "longitudeInDegrees": -62.3481, "startUtc": "2026-07-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": null, "setUtc": null, "transitUtc": "2026-07-21T16:16:00Z", "civilDawnUtc": null, "civilDuskUtc": null, "nauticalDawnUtc": null, "nauticalDuskUtc": null, "astronomicalDawnUtc": null, "astronomicalDuskUtc": null, "isAlwaysUp": true, "isAlwaysDown": false } }, { "id": "usno-events-alert-2026-08-21", "operation": "events", "tags": [ "published", "reference", "polar" ], "input": { "latitudeInDegrees": 82.5018, "longitudeInDegrees": -62.3481, "startUtc": "2026-08-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": null, "setUtc": null, "transitUtc": "2026-08-21T16:13:00Z", "civilDawnUtc": null, "civilDuskUtc": null, "nauticalDawnUtc": null, "nauticalDuskUtc": null, "astronomicalDawnUtc": null, "astronomicalDuskUtc": null, "isAlwaysUp": true, "isAlwaysDown": false } }, { "id": "usno-events-alert-2026-09-21", "operation": "events", "tags": [ "published", "reference", "polar" ], "input": { "latitudeInDegrees": 82.5018, "longitudeInDegrees": -62.3481, "startUtc": "2026-09-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": "2026-09-21T09:18:00Z", "setUtc": "2026-09-21T22:40:00Z", "transitUtc": "2026-09-21T16:02:00Z", "civilDawnUtc": "2026-09-21T05:50:00Z", "civilDuskUtc": "2026-09-21T02:19:00Z", "nauticalDawnUtc": null, "nauticalDuskUtc": null, "astronomicalDawnUtc": null, "astronomicalDuskUtc": null, "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-alert-2026-10-21", "operation": "events", "tags": [ "published", "reference", "polar" ], "input": { "latitudeInDegrees": 82.5018, "longitudeInDegrees": -62.3481, "startUtc": "2026-10-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": null, "setUtc": null, "civilDawnUtc": "2026-10-21T12:32:00Z", "civilDuskUtc": "2026-10-21T19:12:00Z", "nauticalDawnUtc": "2026-10-21T09:13:07Z", "nauticalDuskUtc": "2026-10-21T22:28:52Z", "astronomicalDawnUtc": "2026-10-21T04:45:36Z", "astronomicalDuskUtc": "2026-10-21T03:05:57Z", "isAlwaysUp": false, "isAlwaysDown": true } }, { "id": "usno-events-alert-2026-11-21", "operation": "events", "tags": [ "published", "reference", "polar" ], "input": { "latitudeInDegrees": 82.5018, "longitudeInDegrees": -62.3481, "startUtc": "2026-11-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": null, "setUtc": null, "civilDawnUtc": null, "civilDuskUtc": null, "nauticalDawnUtc": null, "nauticalDuskUtc": null, "astronomicalDawnUtc": "2026-11-21T10:50:58Z", "astronomicalDuskUtc": "2026-11-21T20:56:43Z", "isAlwaysUp": false, "isAlwaysDown": true } }, { "id": "usno-events-alert-2026-12-21", "operation": "events", "tags": [ "published", "reference", "polar", "edge" ], "input": { "latitudeInDegrees": 82.5018, "longitudeInDegrees": -62.3481, "startUtc": "2026-12-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": null, "setUtc": null, "civilDawnUtc": null, "civilDuskUtc": null, "nauticalDawnUtc": null, "nauticalDuskUtc": null, "astronomicalDawnUtc": "2026-12-21T13:09:23Z", "astronomicalDuskUtc": "2026-12-21T19:05:41Z", "isAlwaysUp": false, "isAlwaysDown": true } }, { "id": "usno-events-longyearbyen-2026-01-21", "operation": "events", "tags": [ "published", "reference", "polar" ], "input": { "latitudeInDegrees": 78.2232, "longitudeInDegrees": 15.6267, "startUtc": "2026-01-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": null, "setUtc": null, "civilDawnUtc": null, "civilDuskUtc": null, "nauticalDawnUtc": "2026-01-21T07:51:09Z", "nauticalDuskUtc": "2026-01-21T14:28:01Z", "astronomicalDawnUtc": "2026-01-21T05:37:37Z", "astronomicalDuskUtc": "2026-01-21T16:41:56Z", "isAlwaysUp": false, "isAlwaysDown": true } }, { "id": "usno-events-longyearbyen-2026-02-21", "operation": "events", "tags": [ "published", "reference", "polar" ], "input": { "latitudeInDegrees": 78.2232, "longitudeInDegrees": 15.6267, "startUtc": "2026-02-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": "2026-02-21T08:50:00Z", "setUtc": "2026-02-21T13:35:00Z", "transitUtc": "2026-02-21T11:11:00Z", "civilDawnUtc": "2026-02-21T06:38:00Z", "civilDuskUtc": "2026-02-21T15:47:00Z", "nauticalDawnUtc": "2026-02-21T04:38:33Z", "nauticalDuskUtc": "2026-02-21T17:47:24Z", "astronomicalDawnUtc": "2026-02-21T02:31:05Z", "astronomicalDuskUtc": "2026-02-21T19:57:33Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-longyearbyen-2026-03-21", "operation": "events", "tags": [ "published", "reference", "polar" ], "input": { "latitudeInDegrees": 78.2232, "longitudeInDegrees": 15.6267, "startUtc": "2026-03-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": "2026-03-21T04:44:00Z", "setUtc": "2026-03-21T17:29:00Z", "transitUtc": "2026-03-21T11:05:00Z", "civilDawnUtc": "2026-03-21T02:57:00Z", "civilDuskUtc": "2026-03-21T19:18:00Z", "nauticalDawnUtc": null, "nauticalDuskUtc": null, "astronomicalDawnUtc": null, "astronomicalDuskUtc": null, "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-longyearbyen-2026-04-21", "operation": "events", "tags": [ "published", "reference", "polar" ], "input": { "latitudeInDegrees": 78.2232, "longitudeInDegrees": 15.6267, "startUtc": "2026-04-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": null, "setUtc": null, "transitUtc": "2026-04-21T10:56:00Z", "civilDawnUtc": null, "civilDuskUtc": null, "nauticalDawnUtc": null, "nauticalDuskUtc": null, "astronomicalDawnUtc": null, "astronomicalDuskUtc": null, "isAlwaysUp": true, "isAlwaysDown": false } }, { "id": "usno-events-longyearbyen-2026-05-21", "operation": "events", "tags": [ "published", "reference", "polar" ], "input": { "latitudeInDegrees": 78.2232, "longitudeInDegrees": 15.6267, "startUtc": "2026-05-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": null, "setUtc": null, "transitUtc": "2026-05-21T10:54:00Z", "civilDawnUtc": null, "civilDuskUtc": null, "nauticalDawnUtc": null, "nauticalDuskUtc": null, "astronomicalDawnUtc": null, "astronomicalDuskUtc": null, "isAlwaysUp": true, "isAlwaysDown": false } }, { "id": "usno-events-longyearbyen-2026-06-21", "operation": "events", "tags": [ "published", "reference", "polar", "edge" ], "input": { "latitudeInDegrees": 78.2232, "longitudeInDegrees": 15.6267, "startUtc": "2026-06-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": null, "setUtc": null, "transitUtc": "2026-06-21T10:59:00Z", "civilDawnUtc": null, "civilDuskUtc": null, "nauticalDawnUtc": null, "nauticalDuskUtc": null, "astronomicalDawnUtc": null, "astronomicalDuskUtc": null, "isAlwaysUp": true, "isAlwaysDown": false } }, { "id": "usno-events-longyearbyen-2026-07-21", "operation": "events", "tags": [ "published", "reference", "polar" ], "input": { "latitudeInDegrees": 78.2232, "longitudeInDegrees": 15.6267, "startUtc": "2026-07-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": null, "setUtc": null, "transitUtc": "2026-07-21T11:04:00Z", "civilDawnUtc": null, "civilDuskUtc": null, "nauticalDawnUtc": null, "nauticalDuskUtc": null, "astronomicalDawnUtc": null, "astronomicalDuskUtc": null, "isAlwaysUp": true, "isAlwaysDown": false } }, { "id": "usno-events-longyearbyen-2026-08-21", "operation": "events", "tags": [ "published", "reference", "polar" ], "input": { "latitudeInDegrees": 78.2232, "longitudeInDegrees": 15.6267, "startUtc": "2026-08-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": null, "setUtc": null, "transitUtc": "2026-08-21T11:01:00Z", "civilDawnUtc": null, "civilDuskUtc": null, "nauticalDawnUtc": null, "nauticalDuskUtc": null, "astronomicalDawnUtc": null, "astronomicalDuskUtc": null, "isAlwaysUp": true, "isAlwaysDown": false } }, { "id": "usno-events-longyearbyen-2026-09-21", "operation": "events", "tags": [ "published", "reference", "polar" ], "input": { "latitudeInDegrees": 78.2232, "longitudeInDegrees": 15.6267, "startUtc": "2026-09-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": "2026-09-21T04:21:00Z", "setUtc": "2026-09-21T17:16:00Z", "transitUtc": "2026-09-21T10:51:00Z", "civilDawnUtc": "2026-09-21T02:31:00Z", "civilDuskUtc": "2026-09-21T19:04:00Z", "nauticalDawnUtc": null, "nauticalDuskUtc": null, "astronomicalDawnUtc": null, "astronomicalDuskUtc": null, "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-longyearbyen-2026-10-21", "operation": "events", "tags": [ "published", "reference", "polar" ], "input": { "latitudeInDegrees": 78.2232, "longitudeInDegrees": 15.6267, "startUtc": "2026-10-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": "2026-10-21T08:30:00Z", "setUtc": "2026-10-21T12:52:00Z", "transitUtc": "2026-10-21T10:42:00Z", "civilDawnUtc": "2026-10-21T06:13:00Z", "civilDuskUtc": "2026-10-21T15:08:00Z", "nauticalDawnUtc": "2026-10-21T04:11:59Z", "nauticalDuskUtc": "2026-10-21T17:08:36Z", "astronomicalDawnUtc": "2026-10-21T02:03:35Z", "astronomicalDuskUtc": "2026-10-21T19:14:34Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-longyearbyen-2026-11-21", "operation": "events", "tags": [ "published", "reference", "polar" ], "input": { "latitudeInDegrees": 78.2232, "longitudeInDegrees": 15.6267, "startUtc": "2026-11-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": null, "setUtc": null, "civilDawnUtc": null, "civilDuskUtc": null, "nauticalDawnUtc": "2026-11-21T07:27:17Z", "nauticalDuskUtc": "2026-11-21T13:57:48Z", "astronomicalDawnUtc": "2026-11-21T05:12:32Z", "astronomicalDuskUtc": "2026-11-21T16:12:11Z", "isAlwaysUp": false, "isAlwaysDown": true } }, { "id": "usno-events-longyearbyen-2026-12-21", "operation": "events", "tags": [ "published", "reference", "polar", "edge" ], "input": { "latitudeInDegrees": 78.2232, "longitudeInDegrees": 15.6267, "startUtc": "2026-12-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": null, "setUtc": null, "civilDawnUtc": null, "civilDuskUtc": null, "nauticalDawnUtc": "2026-12-21T09:58:28Z", "nauticalDuskUtc": "2026-12-21T11:52:34Z", "astronomicalDawnUtc": "2026-12-21T06:37:07Z", "astronomicalDuskUtc": "2026-12-21T15:13:56Z", "isAlwaysUp": false, "isAlwaysDown": true } }, { "id": "usno-events-tromso-2026-01-21", "operation": "events", "tags": [ "published", "reference", "polar" ], "input": { "latitudeInDegrees": 69.6492, "longitudeInDegrees": 18.9553, "startUtc": "2026-01-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": "2026-01-21T09:29:00Z", "setUtc": "2026-01-21T12:23:00Z", "transitUtc": "2026-01-21T10:55:00Z", "civilDawnUtc": "2026-01-21T07:39:00Z", "civilDuskUtc": "2026-01-21T14:13:00Z", "nauticalDawnUtc": "2026-01-21T06:14:50Z", "nauticalDuskUtc": "2026-01-21T15:37:07Z", "astronomicalDawnUtc": "2026-01-21T05:02:30Z", "astronomicalDuskUtc": "2026-01-21T16:49:36Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-tromso-2026-02-21", "operation": "events", "tags": [ "published", "reference", "polar" ], "input": { "latitudeInDegrees": 69.6492, "longitudeInDegrees": 18.9553, "startUtc": "2026-02-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": "2026-02-21T06:47:00Z", "setUtc": "2026-02-21T15:10:00Z", "transitUtc": "2026-02-21T10:58:00Z", "civilDawnUtc": "2026-02-21T05:43:00Z", "civilDuskUtc": "2026-02-21T16:14:00Z", "nauticalDawnUtc": "2026-02-21T04:33:38Z", "nauticalDuskUtc": "2026-02-21T17:23:57Z", "astronomicalDawnUtc": "2026-02-21T03:23:26Z", "astronomicalDuskUtc": "2026-02-21T18:34:41Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-tromso-2026-03-21", "operation": "events", "tags": [ "published", "reference", "polar" ], "input": { "latitudeInDegrees": 69.6492, "longitudeInDegrees": 18.9553, "startUtc": "2026-03-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": "2026-03-21T04:39:00Z", "setUtc": "2026-03-21T17:05:00Z", "transitUtc": "2026-03-21T10:51:00Z", "civilDawnUtc": "2026-03-21T03:39:00Z", "civilDuskUtc": "2026-03-21T18:06:00Z", "nauticalDawnUtc": "2026-03-21T02:22:01Z", "nauticalDuskUtc": "2026-03-21T19:24:29Z", "astronomicalDawnUtc": "2026-03-21T00:36:51Z", "astronomicalDuskUtc": "2026-03-21T21:14:24Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-tromso-2026-04-21", "operation": "events", "tags": [ "published", "reference", "polar" ], "input": { "latitudeInDegrees": 69.6492, "longitudeInDegrees": 18.9553, "startUtc": "2026-04-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": "2026-04-21T02:14:00Z", "setUtc": "2026-04-21T19:16:00Z", "transitUtc": "2026-04-21T10:43:00Z", "civilDawnUtc": "2026-04-21T00:41:00Z", "civilDuskUtc": "2026-04-21T20:52:00Z", "nauticalDawnUtc": null, "nauticalDuskUtc": null, "astronomicalDawnUtc": null, "astronomicalDuskUtc": null, "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-tromso-2026-05-21", "operation": "events", "tags": [ "published", "reference", "polar" ], "input": { "latitudeInDegrees": 69.6492, "longitudeInDegrees": 18.9553, "startUtc": "2026-05-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": null, "setUtc": null, "transitUtc": "2026-05-21T10:41:00Z", "civilDawnUtc": null, "civilDuskUtc": null, "nauticalDawnUtc": null, "nauticalDuskUtc": null, "astronomicalDawnUtc": null, "astronomicalDuskUtc": null, "isAlwaysUp": true, "isAlwaysDown": false } }, { "id": "usno-events-tromso-2026-06-21", "operation": "events", "tags": [ "published", "reference", "polar" ], "input": { "latitudeInDegrees": 69.6492, "longitudeInDegrees": 18.9553, "startUtc": "2026-06-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": null, "setUtc": null, "transitUtc": "2026-06-21T10:46:00Z", "civilDawnUtc": null, "civilDuskUtc": null, "nauticalDawnUtc": null, "nauticalDuskUtc": null, "astronomicalDawnUtc": null, "astronomicalDuskUtc": null, "isAlwaysUp": true, "isAlwaysDown": false } }, { "id": "usno-events-tromso-2026-07-21", "operation": "events", "tags": [ "published", "reference", "polar" ], "input": { "latitudeInDegrees": 69.6492, "longitudeInDegrees": 18.9553, "startUtc": "2026-07-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": null, "setUtc": null, "transitUtc": "2026-07-21T10:51:00Z", "civilDawnUtc": null, "civilDuskUtc": null, "nauticalDawnUtc": null, "nauticalDuskUtc": null, "astronomicalDawnUtc": null, "astronomicalDuskUtc": null, "isAlwaysUp": true, "isAlwaysDown": false } }, { "id": "usno-events-tromso-2026-08-21", "operation": "events", "tags": [ "published", "reference", "polar" ], "input": { "latitudeInDegrees": 69.6492, "longitudeInDegrees": 18.9553, "startUtc": "2026-08-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": "2026-08-21T02:13:00Z", "setUtc": "2026-08-21T19:18:00Z", "transitUtc": "2026-08-21T10:47:00Z", "civilDawnUtc": "2026-08-21T00:37:00Z", "civilDuskUtc": "2026-08-21T20:51:00Z", "nauticalDawnUtc": null, "nauticalDuskUtc": null, "astronomicalDawnUtc": null, "astronomicalDuskUtc": null, "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-tromso-2026-09-21", "operation": "events", "tags": [ "published", "reference", "polar" ], "input": { "latitudeInDegrees": 69.6492, "longitudeInDegrees": 18.9553, "startUtc": "2026-09-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": "2026-09-21T04:20:00Z", "setUtc": "2026-09-21T16:52:00Z", "transitUtc": "2026-09-21T10:37:00Z", "civilDawnUtc": "2026-09-21T03:19:00Z", "civilDuskUtc": "2026-09-21T17:53:00Z", "nauticalDawnUtc": "2026-09-21T02:00:21Z", "nauticalDuskUtc": "2026-09-21T19:10:21Z", "astronomicalDawnUtc": "2026-09-21T00:06:41Z", "astronomicalDuskUtc": "2026-09-21T20:58:41Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-tromso-2026-10-21", "operation": "events", "tags": [ "published", "reference", "polar" ], "input": { "latitudeInDegrees": 69.6492, "longitudeInDegrees": 18.9553, "startUtc": "2026-10-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": "2026-10-21T06:20:00Z", "setUtc": "2026-10-21T14:36:00Z", "transitUtc": "2026-10-21T10:29:00Z", "civilDawnUtc": "2026-10-21T05:16:00Z", "civilDuskUtc": "2026-10-21T15:40:00Z", "nauticalDawnUtc": "2026-10-21T04:05:59Z", "nauticalDuskUtc": "2026-10-21T16:49:37Z", "astronomicalDawnUtc": "2026-10-21T02:55:29Z", "astronomicalDuskUtc": "2026-10-21T17:59:37Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-tromso-2026-11-21", "operation": "events", "tags": [ "published", "reference", "polar" ], "input": { "latitudeInDegrees": 69.6492, "longitudeInDegrees": 18.9553, "startUtc": "2026-11-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": "2026-11-21T09:06:00Z", "setUtc": "2026-11-21T11:53:00Z", "transitUtc": "2026-11-21T10:30:00Z", "civilDawnUtc": "2026-11-21T07:15:00Z", "civilDuskUtc": "2026-11-21T13:45:00Z", "nauticalDawnUtc": "2026-11-21T05:49:45Z", "nauticalDuskUtc": "2026-11-21T15:09:16Z", "astronomicalDawnUtc": "2026-11-21T04:37:09Z", "astronomicalDuskUtc": "2026-11-21T16:21:44Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-tromso-2026-12-21", "operation": "events", "tags": [ "published", "reference", "polar" ], "note": "Polar night with civil twilight at midday.", "input": { "latitudeInDegrees": 69.6492, "longitudeInDegrees": 18.9553, "startUtc": "2026-12-21T00:00:00Z", "windowInHours": 24 }, 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false, "isAlwaysDown": false } }, { "id": "usno-events-reykjavik-2026-02-21", "operation": "events", "tags": [ "published", "reference", "polar" ], "input": { "latitudeInDegrees": 64.1466, "longitudeInDegrees": -21.9426, "startUtc": "2026-02-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": "2026-02-21T09:03:00Z", "setUtc": "2026-02-21T18:21:00Z", "transitUtc": "2026-02-21T13:41:00Z", "civilDawnUtc": "2026-02-21T08:13:00Z", "civilDuskUtc": "2026-02-21T19:11:00Z", "nauticalDawnUtc": "2026-02-21T07:18:04Z", "nauticalDuskUtc": "2026-02-21T20:06:11Z", "astronomicalDawnUtc": "2026-02-21T06:22:38Z", "astronomicalDuskUtc": "2026-02-21T21:01:54Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-reykjavik-2026-03-21", "operation": "events", "tags": [ "published", "reference", "polar" ], "input": { "latitudeInDegrees": 64.1466, "longitudeInDegrees": -21.9426, "startUtc": "2026-03-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": "2026-03-21T07:25:00Z", "setUtc": "2026-03-21T19:46:00Z", "transitUtc": "2026-03-21T13:35:00Z", "civilDawnUtc": "2026-03-21T06:37:00Z", "civilDuskUtc": "2026-03-21T20:34:00Z", "nauticalDawnUtc": "2026-03-21T05:38:48Z", "nauticalDuskUtc": "2026-03-21T21:33:28Z", "astronomicalDawnUtc": "2026-03-21T04:31:52Z", "astronomicalDuskUtc": "2026-03-21T22:41:30Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-reykjavik-2026-04-21", "operation": "events", "tags": [ "published", "reference", "polar" ], "input": { "latitudeInDegrees": 64.1466, "longitudeInDegrees": -21.9426, "startUtc": "2026-04-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": "2026-04-21T05:35:00Z", "setUtc": "2026-04-21T21:20:00Z", "transitUtc": "2026-04-21T13:26:00Z", "civilDawnUtc": "2026-04-21T04:36:00Z", "civilDuskUtc": "2026-04-21T22:20:00Z", "nauticalDawnUtc": "2026-04-21T02:59:11Z", "nauticalDuskUtc": null, "astronomicalDawnUtc": null, "astronomicalDuskUtc": null, "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-reykjavik-2026-05-21", "operation": "events", "tags": [ "published", "reference", "polar" ], "input": { "latitudeInDegrees": 64.1466, "longitudeInDegrees": -21.9426, "startUtc": "2026-05-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": "2026-05-21T03:54:00Z", "setUtc": "2026-05-21T22:57:00Z", "transitUtc": "2026-05-21T13:24:00Z", "civilDawnUtc": null, "civilDuskUtc": null, "nauticalDawnUtc": null, "nauticalDuskUtc": null, "astronomicalDawnUtc": null, "astronomicalDuskUtc": null, "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-reykjavik-2026-06-21", "operation": "events", "tags": [ "published", "reference", "polar" ], "input": { "latitudeInDegrees": 64.1466, "longitudeInDegrees": -21.9426, "startUtc": "2026-06-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": "2026-06-21T02:55:00Z", "setUtc": "2026-06-21T00:04:00Z", "transitUtc": "2026-06-21T13:30:00Z", "civilDawnUtc": null, "civilDuskUtc": null, "nauticalDawnUtc": null, "nauticalDuskUtc": null, "astronomicalDawnUtc": null, "astronomicalDuskUtc": null, "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-reykjavik-2026-07-21", "operation": "events", "tags": [ "published", "reference", "polar" ], "input": { "latitudeInDegrees": 64.1466, "longitudeInDegrees": -21.9426, "startUtc": "2026-07-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": "2026-07-21T03:59:00Z", "setUtc": "2026-07-21T23:07:00Z", "transitUtc": "2026-07-21T13:34:00Z", "civilDawnUtc": null, "civilDuskUtc": null, "nauticalDawnUtc": null, "nauticalDuskUtc": null, "astronomicalDawnUtc": null, "astronomicalDuskUtc": null, "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-reykjavik-2026-08-21", "operation": "events", "tags": [ "published", "reference", "polar" ], "input": { "latitudeInDegrees": 64.1466, "longitudeInDegrees": -21.9426, "startUtc": "2026-08-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": "2026-08-21T05:37:00Z", "setUtc": "2026-08-21T21:22:00Z", "transitUtc": "2026-08-21T13:31:00Z", "civilDawnUtc": "2026-08-21T04:37:00Z", "civilDuskUtc": "2026-08-21T22:22:00Z", "nauticalDawnUtc": "2026-08-21T02:56:29Z", "nauticalDuskUtc": "2026-08-21T00:06:34Z", "astronomicalDawnUtc": null, "astronomicalDuskUtc": null, "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-reykjavik-2026-09-21", "operation": "events", "tags": [ "published", "reference", "polar" ], "input": { "latitudeInDegrees": 64.1466, "longitudeInDegrees": -21.9426, "startUtc": "2026-09-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": "2026-09-21T07:08:00Z", "setUtc": "2026-09-21T19:32:00Z", "transitUtc": "2026-09-21T13:21:00Z", "civilDawnUtc": "2026-09-21T06:20:00Z", "civilDuskUtc": "2026-09-21T20:20:00Z", "nauticalDawnUtc": "2026-09-21T05:20:30Z", "nauticalDuskUtc": "2026-09-21T21:18:41Z", "astronomicalDawnUtc": "2026-09-21T04:12:00Z", "astronomicalDuskUtc": "2026-09-21T22:26:05Z", 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"nauticalDawnUtc": "2026-10-21T05:34:55Z", "nauticalDuskUtc": "2026-10-21T18:18:45Z", "astronomicalDawnUtc": "2026-10-21T04:51:53Z", "astronomicalDuskUtc": "2026-10-21T19:01:38Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-edinburgh-2026-11-21", "operation": "events", "tags": [ "published", "reference" ], "input": { "latitudeInDegrees": 55.9533, "longitudeInDegrees": -3.1883, "startUtc": "2026-11-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": "2026-11-21T08:01:00Z", "setUtc": "2026-11-21T15:56:00Z", "transitUtc": "2026-11-21T11:59:00Z", "civilDawnUtc": "2026-11-21T07:18:00Z", "civilDuskUtc": "2026-11-21T16:39:00Z", "nauticalDawnUtc": "2026-11-21T06:31:06Z", "nauticalDuskUtc": "2026-11-21T17:25:31Z", "astronomicalDawnUtc": "2026-11-21T05:46:55Z", "astronomicalDuskUtc": "2026-11-21T18:09:39Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-edinburgh-2026-12-21", "operation": "events", "tags": [ "published", "reference" ], "input": { "latitudeInDegrees": 55.9533, "longitudeInDegrees": -3.1883, "startUtc": "2026-12-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": "2026-12-21T08:42:00Z", "setUtc": "2026-12-21T15:40:00Z", "transitUtc": "2026-12-21T12:11:00Z", "civilDawnUtc": "2026-12-21T07:55:00Z", "civilDuskUtc": "2026-12-21T16:27:00Z", "nauticalDawnUtc": "2026-12-21T07:05:31Z", "nauticalDuskUtc": "2026-12-21T17:16:07Z", "astronomicalDawnUtc": "2026-12-21T06:19:53Z", "astronomicalDuskUtc": "2026-12-21T18:01:45Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-london-2026-01-21", "operation": "events", "tags": [ "published", "reference" ], "input": { "latitudeInDegrees": 51.5072, "longitudeInDegrees": -0.1276, "startUtc": "2026-01-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": "2026-01-21T07:54:00Z", "setUtc": "2026-01-21T16:31:00Z", "transitUtc": "2026-01-21T12:12:00Z", "civilDawnUtc": "2026-01-21T07:16:00Z", "civilDuskUtc": "2026-01-21T17:08:00Z", "nauticalDawnUtc": "2026-01-21T06:34:37Z", "nauticalDuskUtc": "2026-01-21T17:49:31Z", "astronomicalDawnUtc": "2026-01-21T05:55:00Z", "astronomicalDuskUtc": "2026-01-21T18:29:11Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-london-2026-02-21", "operation": "events", "tags": [ "published", "reference" ], "input": { "latitudeInDegrees": 51.5072, "longitudeInDegrees": -0.1276, "startUtc": "2026-02-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": "2026-02-21T07:03:00Z", "setUtc": "2026-02-21T17:26:00Z", "transitUtc": "2026-02-21T12:14:00Z", "civilDawnUtc": "2026-02-21T06:29:00Z", "civilDuskUtc": "2026-02-21T18:00:00Z", "nauticalDawnUtc": "2026-02-21T05:49:51Z", "nauticalDuskUtc": "2026-02-21T18:39:15Z", "astronomicalDawnUtc": "2026-02-21T05:11:18Z", "astronomicalDuskUtc": "2026-02-21T19:17:55Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-london-2026-03-21", "operation": "events", "tags": [ "published", "reference" ], "input": { "latitudeInDegrees": 51.5072, "longitudeInDegrees": -0.1276, "startUtc": "2026-03-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": "2026-03-21T06:01:00Z", "setUtc": "2026-03-21T18:15:00Z", "transitUtc": "2026-03-21T12:08:00Z", "civilDawnUtc": "2026-03-21T05:28:00Z", "civilDuskUtc": "2026-03-21T18:49:00Z", "nauticalDawnUtc": "2026-03-21T04:48:28Z", "nauticalDuskUtc": "2026-03-21T19:28:08Z", "astronomicalDawnUtc": "2026-03-21T04:07:25Z", "astronomicalDuskUtc": "2026-03-21T20:09:25Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-london-2026-04-21", "operation": "events", "tags": [ "published", "reference" ], "input": { "latitudeInDegrees": 51.5072, "longitudeInDegrees": -0.1276, "startUtc": "2026-04-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": "2026-04-21T04:52:00Z", "setUtc": "2026-04-21T19:07:00Z", "transitUtc": "2026-04-21T11:59:00Z", "civilDawnUtc": "2026-04-21T04:16:00Z", "civilDuskUtc": "2026-04-21T19:44:00Z", "nauticalDawnUtc": "2026-04-21T03:30:24Z", "nauticalDuskUtc": "2026-04-21T20:29:40Z", "astronomicalDawnUtc": "2026-04-21T02:37:41Z", "astronomicalDuskUtc": "2026-04-21T21:23:06Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-london-2026-05-21", "operation": "events", "tags": [ "published", "reference" ], "input": { "latitudeInDegrees": 51.5072, "longitudeInDegrees": -0.1276, "startUtc": "2026-05-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": "2026-05-21T04:01:00Z", "setUtc": "2026-05-21T19:55:00Z", "transitUtc": "2026-05-21T11:57:00Z", "civilDawnUtc": "2026-05-21T03:18:00Z", "civilDuskUtc": "2026-05-21T20:38:00Z", "nauticalDawnUtc": "2026-05-21T02:17:43Z", "nauticalDuskUtc": "2026-05-21T21:38:15Z", "astronomicalDawnUtc": "2026-05-21T00:29:15Z", "astronomicalDuskUtc": "2026-05-21T23:35:45Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-london-2026-06-21", "operation": "events", "tags": [ "published", "reference" ], "input": { "latitudeInDegrees": 51.5072, "longitudeInDegrees": -0.1276, "startUtc": "2026-06-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": "2026-06-21T03:43:00Z", "setUtc": "2026-06-21T20:21:00Z", "transitUtc": "2026-06-21T12:02:00Z", "civilDawnUtc": "2026-06-21T02:55:00Z", "civilDuskUtc": "2026-06-21T21:09:00Z", "nauticalDawnUtc": "2026-06-21T01:40:41Z", "nauticalDuskUtc": "2026-06-21T22:23:58Z", "astronomicalDawnUtc": null, "astronomicalDuskUtc": null, "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-london-2026-07-21", "operation": "events", "tags": [ "published", "reference" ], "input": { "latitudeInDegrees": 51.5072, "longitudeInDegrees": -0.1276, "startUtc": "2026-07-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": "2026-07-21T04:08:00Z", "setUtc": "2026-07-21T20:05:00Z", "transitUtc": "2026-07-21T12:07:00Z", "civilDawnUtc": "2026-07-21T03:25:00Z", "civilDuskUtc": "2026-07-21T20:48:00Z", "nauticalDawnUtc": "2026-07-21T02:24:04Z", "nauticalDuskUtc": "2026-07-21T21:48:08Z", "astronomicalDawnUtc": null, "astronomicalDuskUtc": "2026-07-21T23:43:34Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-london-2026-08-21", "operation": "events", "tags": [ "published", "reference" ], "input": { "latitudeInDegrees": 51.5072, "longitudeInDegrees": -0.1276, "startUtc": "2026-08-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": "2026-08-21T04:55:00Z", "setUtc": "2026-08-21T19:11:00Z", "transitUtc": "2026-08-21T12:04:00Z", "civilDawnUtc": "2026-08-21T04:19:00Z", "civilDuskUtc": "2026-08-21T19:47:00Z", "nauticalDawnUtc": "2026-08-21T03:32:54Z", "nauticalDuskUtc": "2026-08-21T20:32:48Z", "astronomicalDawnUtc": "2026-08-21T02:39:23Z", "astronomicalDuskUtc": "2026-08-21T21:25:37Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-london-2026-09-21", "operation": "events", "tags": [ "published", "reference" ], "input": { "latitudeInDegrees": 51.5072, "longitudeInDegrees": -0.1276, "startUtc": "2026-09-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": "2026-09-21T05:45:00Z", "setUtc": "2026-09-21T18:01:00Z", "transitUtc": "2026-09-21T11:54:00Z", "civilDawnUtc": "2026-09-21T05:11:00Z", "civilDuskUtc": "2026-09-21T18:35:00Z", "nauticalDawnUtc": "2026-09-21T04:31:52Z", "nauticalDuskUtc": "2026-09-21T19:14:01Z", "astronomicalDawnUtc": "2026-09-21T03:50:28Z", "astronomicalDuskUtc": "2026-09-21T19:55:11Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-london-2026-10-21", "operation": "events", "tags": [ "published", "reference" ], "input": { "latitudeInDegrees": 51.5072, "longitudeInDegrees": -0.1276, "startUtc": "2026-10-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": "2026-10-21T06:35:00Z", "setUtc": "2026-10-21T16:55:00Z", "transitUtc": "2026-10-21T11:45:00Z", "civilDawnUtc": "2026-10-21T06:01:00Z", "civilDuskUtc": "2026-10-21T17:29:00Z", "nauticalDawnUtc": "2026-10-21T05:21:43Z", "nauticalDuskUtc": "2026-10-21T18:07:38Z", "astronomicalDawnUtc": "2026-10-21T04:43:04Z", "astronomicalDuskUtc": "2026-10-21T18:46:10Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-london-2026-11-21", "operation": "events", "tags": [ "published", "reference" ], "input": { "latitudeInDegrees": 51.5072, "longitudeInDegrees": -0.1276, "startUtc": "2026-11-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": "2026-11-21T07:28:00Z", "setUtc": "2026-11-21T16:04:00Z", "transitUtc": "2026-11-21T11:46:00Z", "civilDawnUtc": "2026-11-21T06:51:00Z", "civilDuskUtc": "2026-11-21T16:42:00Z", "nauticalDawnUtc": "2026-11-21T06:09:23Z", "nauticalDuskUtc": "2026-11-21T17:22:49Z", "astronomicalDawnUtc": "2026-11-21T05:29:41Z", "astronomicalDuskUtc": "2026-11-21T18:02:29Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-london-2026-12-21", "operation": "events", "tags": [ "published", "reference" ], "input": { "latitudeInDegrees": 51.5072, "longitudeInDegrees": -0.1276, "startUtc": "2026-12-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": "2026-12-21T08:04:00Z", "setUtc": "2026-12-21T15:53:00Z", "transitUtc": "2026-12-21T11:59:00Z", "civilDawnUtc": "2026-12-21T07:23:00Z", "civilDuskUtc": "2026-12-21T16:34:00Z", "nauticalDawnUtc": "2026-12-21T06:40:12Z", "nauticalDuskUtc": "2026-12-21T17:16:56Z", "astronomicalDawnUtc": "2026-12-21T05:59:23Z", "astronomicalDuskUtc": "2026-12-21T17:57:46Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-vancouver-2026-01-21", "operation": "events", "tags": [ "published", "reference" ], "input": { "latitudeInDegrees": 49.2827, "longitudeInDegrees": -123.1207, "startUtc": "2026-01-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": "2026-01-21T15:57:00Z", "setUtc": "2026-01-21T00:50:00Z", "transitUtc": "2026-01-21T20:24:00Z", "civilDawnUtc": "2026-01-21T15:21:00Z", "civilDuskUtc": "2026-01-21T01:25:00Z", "nauticalDawnUtc": "2026-01-21T14:42:07Z", "nauticalDuskUtc": "2026-01-21T02:04:47Z", "astronomicalDawnUtc": "2026-01-21T14:04:20Z", "astronomicalDuskUtc": "2026-01-21T02:42:38Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-vancouver-2026-02-21", "operation": "events", "tags": [ "published", "reference" ], "input": { "latitudeInDegrees": 49.2827, "longitudeInDegrees": -123.1207, "startUtc": "2026-02-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": "2026-02-21T15:10:00Z", "setUtc": "2026-02-21T01:41:00Z", "transitUtc": "2026-02-21T20:26:00Z", "civilDawnUtc": "2026-02-21T14:38:00Z", "civilDuskUtc": "2026-02-21T02:14:00Z", "nauticalDawnUtc": "2026-02-21T14:00:43Z", "nauticalDuskUtc": "2026-02-21T02:50:39Z", "astronomicalDawnUtc": "2026-02-21T13:23:56Z", "astronomicalDuskUtc": "2026-02-21T03:27:30Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-vancouver-2026-03-21", "operation": "events", "tags": [ "published", "reference" ], "input": { "latitudeInDegrees": 49.2827, "longitudeInDegrees": -123.1207, "startUtc": "2026-03-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": "2026-03-21T14:13:00Z", "setUtc": "2026-03-21T02:26:00Z", "transitUtc": "2026-03-21T20:20:00Z", "civilDawnUtc": "2026-03-21T13:41:00Z", "civilDuskUtc": "2026-03-21T02:58:00Z", "nauticalDawnUtc": "2026-03-21T13:03:29Z", "nauticalDuskUtc": "2026-03-21T03:35:05Z", "astronomicalDawnUtc": "2026-03-21T12:24:39Z", "astronomicalDuskUtc": "2026-03-21T04:13:59Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-vancouver-2026-04-21", "operation": "events", "tags": [ "published", "reference" ], "input": { "latitudeInDegrees": 49.2827, "longitudeInDegrees": -123.1207, "startUtc": "2026-04-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": "2026-04-21T13:09:00Z", "setUtc": "2026-04-21T03:13:00Z", "transitUtc": "2026-04-21T20:11:00Z", "civilDawnUtc": "2026-04-21T12:34:00Z", "civilDuskUtc": "2026-04-21T03:47:00Z", "nauticalDawnUtc": "2026-04-21T11:51:40Z", "nauticalDuskUtc": "2026-04-21T04:30:05Z", "astronomicalDawnUtc": "2026-04-21T11:03:38Z", "astronomicalDuskUtc": "2026-04-21T05:18:08Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-vancouver-2026-05-21", "operation": "events", "tags": [ "published", "reference" ], "input": { "latitudeInDegrees": 49.2827, "longitudeInDegrees": -123.1207, "startUtc": "2026-05-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": "2026-05-21T12:22:00Z", "setUtc": "2026-05-21T03:56:00Z", "transitUtc": "2026-05-21T20:09:00Z", "civilDawnUtc": "2026-05-21T11:42:00Z", "civilDuskUtc": "2026-05-21T04:36:00Z", "nauticalDawnUtc": "2026-05-21T10:48:24Z", "nauticalDuskUtc": "2026-05-21T05:29:20Z", "astronomicalDawnUtc": "2026-05-21T09:33:32Z", "astronomicalDuskUtc": "2026-05-21T06:44:12Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-vancouver-2026-06-21", "operation": "events", "tags": [ "published", "reference" ], "input": { "latitudeInDegrees": 49.2827, "longitudeInDegrees": -123.1207, "startUtc": "2026-06-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": "2026-06-21T12:07:00Z", "setUtc": "2026-06-21T04:22:00Z", "transitUtc": "2026-06-21T20:14:00Z", "civilDawnUtc": "2026-06-21T11:23:00Z", "civilDuskUtc": "2026-06-21T05:05:00Z", "nauticalDawnUtc": "2026-06-21T10:20:59Z", "nauticalDuskUtc": "2026-06-21T06:07:32Z", "astronomicalDawnUtc": null, "astronomicalDuskUtc": null, "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-vancouver-2026-07-21", "operation": "events", "tags": [ "published", "reference" ], "input": { "latitudeInDegrees": 49.2827, "longitudeInDegrees": -123.1207, "startUtc": "2026-07-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": "2026-07-21T12:30:00Z", "setUtc": "2026-07-21T04:08:00Z", "transitUtc": "2026-07-21T20:19:00Z", "civilDawnUtc": "2026-07-21T11:51:00Z", "civilDuskUtc": "2026-07-21T04:48:00Z", "nauticalDawnUtc": "2026-07-21T10:56:37Z", "nauticalDuskUtc": "2026-07-21T05:41:38Z", "astronomicalDawnUtc": "2026-07-21T09:39:58Z", "astronomicalDuskUtc": "2026-07-21T06:58:17Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-vancouver-2026-08-21", "operation": "events", "tags": [ "published", "reference" ], "input": { "latitudeInDegrees": 49.2827, "longitudeInDegrees": -123.1207, "startUtc": "2026-08-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": "2026-08-21T13:13:00Z", "setUtc": "2026-08-21T03:19:00Z", "transitUtc": "2026-08-21T20:16:00Z", "civilDawnUtc": "2026-08-21T12:39:00Z", "civilDuskUtc": "2026-08-21T03:53:00Z", "nauticalDawnUtc": "2026-08-21T11:55:49Z", "nauticalDuskUtc": "2026-08-21T04:36:11Z", "astronomicalDawnUtc": "2026-08-21T11:07:33Z", "astronomicalDuskUtc": "2026-08-21T05:24:26Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-vancouver-2026-09-21", "operation": "events", "tags": [ "published", "reference" ], "note": "A UTC day: the set (evening before, local time) comes before the rise.", "input": { "latitudeInDegrees": 49.2827, "longitudeInDegrees": -123.1207, "startUtc": "2026-09-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": "2026-09-21T13:58:00Z", "setUtc": "2026-09-21T02:14:00Z", "transitUtc": "2026-09-21T20:05:00Z", "civilDawnUtc": "2026-09-21T13:26:00Z", "civilDuskUtc": "2026-09-21T02:46:00Z", "nauticalDawnUtc": "2026-09-21T12:48:24Z", "nauticalDuskUtc": "2026-09-21T03:23:35Z", "astronomicalDawnUtc": "2026-09-21T12:09:23Z", "astronomicalDuskUtc": "2026-09-21T04:02:33Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-vancouver-2026-10-21", "operation": "events", "tags": [ "published", "reference" ], "input": { "latitudeInDegrees": 49.2827, "longitudeInDegrees": -123.1207, "startUtc": "2026-10-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": "2026-10-21T14:43:00Z", "setUtc": "2026-10-21T01:12:00Z", "transitUtc": "2026-10-21T19:57:00Z", "civilDawnUtc": "2026-10-21T14:11:00Z", "civilDuskUtc": "2026-10-21T01:44:00Z", "nauticalDawnUtc": "2026-10-21T13:33:37Z", "nauticalDuskUtc": "2026-10-21T02:21:25Z", "astronomicalDawnUtc": "2026-10-21T12:56:46Z", "astronomicalDuskUtc": "2026-10-21T02:58:12Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-vancouver-2026-11-21", "operation": "events", "tags": [ "published", "reference" ], "input": { "latitudeInDegrees": 49.2827, "longitudeInDegrees": -123.1207, "startUtc": "2026-11-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": "2026-11-21T15:33:00Z", "setUtc": "2026-11-21T00:25:00Z", "transitUtc": "2026-11-21T19:58:00Z", "civilDawnUtc": "2026-11-21T14:57:00Z", "civilDuskUtc": "2026-11-21T01:00:00Z", "nauticalDawnUtc": "2026-11-21T14:17:34Z", "nauticalDuskUtc": "2026-11-21T01:39:35Z", "astronomicalDawnUtc": "2026-11-21T13:39:41Z", "astronomicalDuskUtc": "2026-11-21T02:17:23Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-vancouver-2026-12-21", "operation": "events", "tags": [ "published", "reference" ], "input": { "latitudeInDegrees": 49.2827, "longitudeInDegrees": -123.1207, "startUtc": "2026-12-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": "2026-12-21T16:05:00Z", "setUtc": "2026-12-21T00:16:00Z", "transitUtc": "2026-12-21T20:11:00Z", "civilDawnUtc": "2026-12-21T15:27:00Z", "civilDuskUtc": "2026-12-21T00:53:00Z", "nauticalDawnUtc": "2026-12-21T14:46:35Z", "nauticalDuskUtc": "2026-12-21T01:34:21Z", "astronomicalDawnUtc": "2026-12-21T14:07:43Z", "astronomicalDuskUtc": "2026-12-21T02:13:14Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-west-vancouver-2026-01-21", "operation": "events", "tags": [ "published", "reference" ], "input": { "latitudeInDegrees": 49.3975, "longitudeInDegrees": -123.2035, "startUtc": "2026-01-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": "2026-01-21T15:58:00Z", "setUtc": "2026-01-21T00:50:00Z", "transitUtc": "2026-01-21T20:24:00Z", "civilDawnUtc": "2026-01-21T15:22:00Z", "civilDuskUtc": "2026-01-21T01:26:00Z", "nauticalDawnUtc": "2026-01-21T14:42:39Z", "nauticalDuskUtc": "2026-01-21T02:04:54Z", "astronomicalDawnUtc": "2026-01-21T14:04:47Z", "astronomicalDuskUtc": "2026-01-21T02:42:51Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-west-vancouver-2026-02-21", "operation": "events", "tags": [ "published", "reference" ], "input": { "latitudeInDegrees": 49.3975, "longitudeInDegrees": -123.2035, "startUtc": "2026-02-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": "2026-02-21T15:11:00Z", "setUtc": "2026-02-21T01:41:00Z", "transitUtc": "2026-02-21T20:26:00Z", "civilDawnUtc": "2026-02-21T14:38:00Z", "civilDuskUtc": "2026-02-21T02:14:00Z", "nauticalDawnUtc": "2026-02-21T14:01:04Z", "nauticalDuskUtc": "2026-02-21T02:50:57Z", "astronomicalDawnUtc": "2026-02-21T13:24:12Z", "astronomicalDuskUtc": "2026-02-21T03:27:54Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-west-vancouver-2026-03-21", "operation": "events", "tags": [ "published", "reference" ], "input": { "latitudeInDegrees": 49.3975, "longitudeInDegrees": -123.2035, "startUtc": "2026-03-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": "2026-03-21T14:13:00Z", "setUtc": "2026-03-21T02:26:00Z", "transitUtc": "2026-03-21T20:20:00Z", "civilDawnUtc": "2026-03-21T13:41:00Z", "civilDuskUtc": "2026-03-21T02:58:00Z", "nauticalDawnUtc": "2026-03-21T13:03:37Z", "nauticalDuskUtc": "2026-03-21T03:35:36Z", "astronomicalDawnUtc": "2026-03-21T12:24:41Z", "astronomicalDuskUtc": "2026-03-21T04:14:36Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-west-vancouver-2026-04-21", "operation": "events", "tags": [ "published", "reference" ], "input": { "latitudeInDegrees": 49.3975, "longitudeInDegrees": -123.2035, "startUtc": "2026-04-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": "2026-04-21T13:09:00Z", "setUtc": "2026-04-21T03:14:00Z", "transitUtc": "2026-04-21T20:11:00Z", "civilDawnUtc": "2026-04-21T12:34:00Z", "civilDuskUtc": "2026-04-21T03:48:00Z", "nauticalDawnUtc": "2026-04-21T11:51:30Z", "nauticalDuskUtc": "2026-04-21T04:30:54Z", "astronomicalDawnUtc": "2026-04-21T11:03:15Z", "astronomicalDuskUtc": "2026-04-21T05:19:11Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-west-vancouver-2026-05-21", "operation": "events", "tags": [ "published", "reference" ], "input": { "latitudeInDegrees": 49.3975, "longitudeInDegrees": -123.2035, "startUtc": "2026-05-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": "2026-05-21T12:21:00Z", "setUtc": "2026-05-21T03:57:00Z", "transitUtc": "2026-05-21T20:09:00Z", "civilDawnUtc": "2026-05-21T11:42:00Z", "civilDuskUtc": "2026-05-21T04:37:00Z", "nauticalDawnUtc": "2026-05-21T10:47:49Z", "nauticalDuskUtc": "2026-05-21T05:30:34Z", "astronomicalDawnUtc": "2026-05-21T09:32:00Z", "astronomicalDuskUtc": "2026-05-21T06:46:24Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-west-vancouver-2026-06-21", "operation": "events", "tags": [ "published", "reference" ], "input": { "latitudeInDegrees": 49.3975, "longitudeInDegrees": -123.2035, "startUtc": "2026-06-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": "2026-06-21T12:07:00Z", "setUtc": "2026-06-21T04:23:00Z", "transitUtc": "2026-06-21T20:15:00Z", "civilDawnUtc": "2026-06-21T11:23:00Z", "civilDuskUtc": "2026-06-21T05:06:00Z", "nauticalDawnUtc": "2026-06-21T10:20:04Z", "nauticalDuskUtc": "2026-06-21T06:09:07Z", "astronomicalDawnUtc": null, "astronomicalDuskUtc": null, "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-west-vancouver-2026-07-21", "operation": "events", "tags": [ "published", "reference" ], "input": { "latitudeInDegrees": 49.3975, "longitudeInDegrees": -123.2035, "startUtc": "2026-07-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": "2026-07-21T12:30:00Z", "setUtc": "2026-07-21T04:09:00Z", "transitUtc": "2026-07-21T20:19:00Z", "civilDawnUtc": "2026-07-21T11:50:00Z", "civilDuskUtc": "2026-07-21T04:49:00Z", "nauticalDawnUtc": "2026-07-21T10:56:02Z", "nauticalDuskUtc": "2026-07-21T05:42:53Z", "astronomicalDawnUtc": "2026-07-21T09:38:19Z", "astronomicalDuskUtc": "2026-07-21T07:00:36Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-west-vancouver-2026-08-21", "operation": "events", "tags": [ "published", "reference" ], "input": { "latitudeInDegrees": 49.3975, "longitudeInDegrees": -123.2035, "startUtc": "2026-08-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": "2026-08-21T13:13:00Z", "setUtc": "2026-08-21T03:20:00Z", "transitUtc": "2026-08-21T20:16:00Z", "civilDawnUtc": "2026-08-21T12:39:00Z", "civilDuskUtc": "2026-08-21T03:54:00Z", "nauticalDawnUtc": "2026-08-21T11:55:40Z", "nauticalDuskUtc": "2026-08-21T04:37:01Z", "astronomicalDawnUtc": "2026-08-21T11:07:10Z", "astronomicalDuskUtc": "2026-08-21T05:25:29Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-west-vancouver-2026-09-21", "operation": "events", "tags": [ "published", "reference" ], "input": { "latitudeInDegrees": 49.3975, "longitudeInDegrees": -123.2035, "startUtc": "2026-09-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": "2026-09-21T13:58:00Z", "setUtc": "2026-09-21T02:15:00Z", "transitUtc": "2026-09-21T20:06:00Z", "civilDawnUtc": "2026-09-21T13:26:00Z", "civilDuskUtc": "2026-09-21T02:46:00Z", "nauticalDawnUtc": "2026-09-21T12:48:33Z", "nauticalDuskUtc": "2026-09-21T03:24:06Z", "astronomicalDawnUtc": "2026-09-21T12:09:25Z", "astronomicalDuskUtc": "2026-09-21T04:03:12Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-west-vancouver-2026-10-21", "operation": "events", "tags": [ "published", "reference" ], "input": { "latitudeInDegrees": 49.3975, "longitudeInDegrees": -123.2035, "startUtc": "2026-10-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": "2026-10-21T14:44:00Z", "setUtc": "2026-10-21T01:12:00Z", "transitUtc": "2026-10-21T19:57:00Z", "civilDawnUtc": "2026-10-21T14:11:00Z", "civilDuskUtc": "2026-10-21T01:45:00Z", "nauticalDawnUtc": "2026-10-21T13:33:59Z", "nauticalDuskUtc": "2026-10-21T02:21:43Z", "astronomicalDawnUtc": "2026-10-21T12:57:03Z", "astronomicalDuskUtc": "2026-10-21T02:58:35Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-west-vancouver-2026-11-21", "operation": "events", "tags": [ "published", "reference" ], "input": { "latitudeInDegrees": 49.3975, "longitudeInDegrees": -123.2035, "startUtc": "2026-11-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": "2026-11-21T15:33:00Z", "setUtc": "2026-11-21T00:25:00Z", "transitUtc": "2026-11-21T19:59:00Z", "civilDawnUtc": "2026-11-21T14:58:00Z", "civilDuskUtc": "2026-11-21T01:00:00Z", "nauticalDawnUtc": "2026-11-21T14:18:07Z", "nauticalDuskUtc": "2026-11-21T01:39:43Z", "astronomicalDawnUtc": "2026-11-21T13:40:09Z", "astronomicalDuskUtc": "2026-11-21T02:17:36Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-west-vancouver-2026-12-21", "operation": "events", "tags": [ "published", "reference" ], "input": { "latitudeInDegrees": 49.3975, "longitudeInDegrees": -123.2035, "startUtc": "2026-12-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": "2026-12-21T16:06:00Z", "setUtc": "2026-12-21T00:16:00Z", "transitUtc": "2026-12-21T20:11:00Z", "civilDawnUtc": "2026-12-21T15:28:00Z", "civilDuskUtc": "2026-12-21T00:53:00Z", "nauticalDawnUtc": "2026-12-21T14:47:12Z", "nauticalDuskUtc": "2026-12-21T01:34:24Z", "astronomicalDawnUtc": "2026-12-21T14:08:14Z", "astronomicalDuskUtc": "2026-12-21T02:13:22Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-paris-2026-01-21", "operation": "events", "tags": [ "published", "reference" ], "input": { "latitudeInDegrees": 48.8566, "longitudeInDegrees": 2.3522, "startUtc": "2026-01-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": "2026-01-21T07:34:00Z", "setUtc": "2026-01-21T16:31:00Z", "transitUtc": "2026-01-21T12:02:00Z", "civilDawnUtc": "2026-01-21T06:59:00Z", "civilDuskUtc": "2026-01-21T17:06:00Z", "nauticalDawnUtc": "2026-01-21T06:19:44Z", "nauticalDuskUtc": "2026-01-21T17:44:32Z", "astronomicalDawnUtc": "2026-01-21T05:42:15Z", "astronomicalDuskUtc": "2026-01-21T18:22:02Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-paris-2026-02-21", "operation": "events", "tags": [ "published", "reference" ], "input": { "latitudeInDegrees": 48.8566, "longitudeInDegrees": 2.3522, "startUtc": "2026-02-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": "2026-02-21T06:48:00Z", "setUtc": "2026-02-21T17:21:00Z", "transitUtc": "2026-02-21T12:04:00Z", "civilDawnUtc": "2026-02-21T06:16:00Z", "civilDuskUtc": "2026-02-21T17:53:00Z", "nauticalDawnUtc": "2026-02-21T05:39:20Z", "nauticalDuskUtc": "2026-02-21T18:29:51Z", "astronomicalDawnUtc": "2026-02-21T05:02:52Z", "astronomicalDuskUtc": "2026-02-21T19:06:24Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-paris-2026-03-21", "operation": "events", "tags": [ "published", "reference" ], "input": { "latitudeInDegrees": 48.8566, "longitudeInDegrees": 2.3522, "startUtc": "2026-03-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": "2026-03-21T05:52:00Z", "setUtc": "2026-03-21T18:05:00Z", "transitUtc": "2026-03-21T11:58:00Z", "civilDawnUtc": "2026-03-21T05:20:00Z", "civilDuskUtc": "2026-03-21T18:36:00Z", "nauticalDawnUtc": "2026-03-21T04:43:02Z", "nauticalDuskUtc": "2026-03-21T19:13:35Z", "astronomicalDawnUtc": "2026-03-21T04:04:39Z", "astronomicalDuskUtc": "2026-03-21T19:52:10Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-paris-2026-04-21", "operation": "events", "tags": [ "published", "reference" ], "input": { "latitudeInDegrees": 48.8566, "longitudeInDegrees": 2.3522, "startUtc": "2026-04-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": "2026-04-21T04:48:00Z", "setUtc": "2026-04-21T18:51:00Z", "transitUtc": "2026-04-21T11:49:00Z", "civilDawnUtc": "2026-04-21T04:14:00Z", "civilDuskUtc": "2026-04-21T19:25:00Z", "nauticalDawnUtc": "2026-04-21T03:32:22Z", "nauticalDuskUtc": "2026-04-21T20:07:38Z", "astronomicalDawnUtc": "2026-04-21T02:45:18Z", "astronomicalDuskUtc": "2026-04-21T20:55:11Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-paris-2026-05-21", "operation": "events", "tags": [ "published", "reference" ], "input": { "latitudeInDegrees": 48.8566, "longitudeInDegrees": 2.3522, "startUtc": "2026-05-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": "2026-05-21T04:02:00Z", "setUtc": "2026-05-21T19:33:00Z", "transitUtc": "2026-05-21T11:47:00Z", "civilDawnUtc": "2026-05-21T03:23:00Z", "civilDuskUtc": "2026-05-21T20:13:00Z", "nauticalDawnUtc": "2026-05-21T02:30:23Z", "nauticalDuskUtc": "2026-05-21T21:05:21Z", "astronomicalDawnUtc": "2026-05-21T01:19:15Z", "astronomicalDuskUtc": "2026-05-21T22:17:50Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-paris-2026-06-21", "operation": "events", "tags": [ "published", "reference" ], "input": { "latitudeInDegrees": 48.8566, "longitudeInDegrees": 2.3522, "startUtc": "2026-06-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": "2026-06-21T03:47:00Z", "setUtc": "2026-06-21T19:58:00Z", "transitUtc": "2026-06-21T11:52:00Z", "civilDawnUtc": "2026-06-21T03:04:00Z", "civilDuskUtc": "2026-06-21T20:41:00Z", "nauticalDawnUtc": "2026-06-21T02:03:32Z", "nauticalDuskUtc": "2026-06-21T21:41:17Z", "astronomicalDawnUtc": null, "astronomicalDuskUtc": null, "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-paris-2026-07-21", "operation": "events", "tags": [ "published", "reference" ], "input": { "latitudeInDegrees": 48.8566, "longitudeInDegrees": 2.3522, "startUtc": "2026-07-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": "2026-07-21T04:10:00Z", "setUtc": "2026-07-21T19:43:00Z", "transitUtc": 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{ "id": "usno-events-los-angeles-2026-03-21", "operation": "events", "tags": [ "published", "reference" ], "input": { "latitudeInDegrees": 34.0522, "longitudeInDegrees": -118.2437, "startUtc": "2026-03-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": "2026-03-21T13:55:00Z", "setUtc": "2026-03-21T02:05:00Z", "transitUtc": "2026-03-21T20:00:00Z", "civilDawnUtc": "2026-03-21T13:30:00Z", "civilDuskUtc": "2026-03-21T02:30:00Z", "nauticalDawnUtc": "2026-03-21T13:00:57Z", "nauticalDuskUtc": "2026-03-21T02:58:55Z", "astronomicalDawnUtc": "2026-03-21T12:31:29Z", "astronomicalDuskUtc": "2026-03-21T03:28:25Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-los-angeles-2026-04-21", "operation": "events", "tags": [ "published", "reference" ], "input": { "latitudeInDegrees": 34.0522, "longitudeInDegrees": -118.2437, "startUtc": "2026-04-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": "2026-04-21T13:15:00Z", "setUtc": "2026-04-21T02:28:00Z", "transitUtc": "2026-04-21T19:52:00Z", "civilDawnUtc": "2026-04-21T12:48:00Z", "civilDuskUtc": "2026-04-21T02:55:00Z", "nauticalDawnUtc": "2026-04-21T12:17:26Z", "nauticalDuskUtc": "2026-04-21T03:25:33Z", "astronomicalDawnUtc": "2026-04-21T11:45:11Z", "astronomicalDuskUtc": "2026-04-21T03:57:49Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-los-angeles-2026-05-21", "operation": "events", "tags": [ "published", "reference" ], "input": { "latitudeInDegrees": 34.0522, "longitudeInDegrees": -118.2437, "startUtc": "2026-05-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": "2026-05-21T12:47:00Z", "setUtc": "2026-05-21T02:51:00Z", "transitUtc": "2026-05-21T19:50:00Z", "civilDawnUtc": "2026-05-21T12:19:00Z", "civilDuskUtc": "2026-05-21T03:20:00Z", "nauticalDawnUtc": "2026-05-21T11:45:08Z", "nauticalDuskUtc": "2026-05-21T03:53:43Z", "astronomicalDawnUtc": "2026-05-21T11:08:25Z", "astronomicalDuskUtc": "2026-05-21T04:30:26Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-los-angeles-2026-06-21", "operation": "events", "tags": [ "published", "reference" ], "input": { "latitudeInDegrees": 34.0522, "longitudeInDegrees": -118.2437, "startUtc": "2026-06-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": "2026-06-21T12:42:00Z", "setUtc": "2026-06-21T03:07:00Z", "transitUtc": "2026-06-21T19:55:00Z", "civilDawnUtc": "2026-06-21T12:13:00Z", "civilDuskUtc": "2026-06-21T03:37:00Z", "nauticalDawnUtc": "2026-06-21T11:36:47Z", "nauticalDuskUtc": "2026-06-21T04:12:44Z", "astronomicalDawnUtc": "2026-06-21T10:57:15Z", "astronomicalDuskUtc": "2026-06-21T04:52:16Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-los-angeles-2026-07-21", "operation": "events", "tags": [ "published", "reference" ], "input": { "latitudeInDegrees": 34.0522, "longitudeInDegrees": -118.2437, "startUtc": "2026-07-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": "2026-07-21T12:57:00Z", "setUtc": "2026-07-21T03:02:00Z", "transitUtc": "2026-07-21T19:59:00Z", "civilDawnUtc": "2026-07-21T12:29:00Z", "civilDuskUtc": "2026-07-21T03:30:00Z", "nauticalDawnUtc": "2026-07-21T11:54:20Z", "nauticalDuskUtc": "2026-07-21T04:04:47Z", "astronomicalDawnUtc": "2026-07-21T11:17:26Z", "astronomicalDuskUtc": "2026-07-21T04:41:40Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-los-angeles-2026-08-21", "operation": "events", "tags": [ "published", "reference" ], "input": { "latitudeInDegrees": 34.0522, "longitudeInDegrees": -118.2437, "startUtc": "2026-08-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": "2026-08-21T13:19:00Z", "setUtc": "2026-08-21T02:34:00Z", "transitUtc": "2026-08-21T19:56:00Z", "civilDawnUtc": "2026-08-21T12:53:00Z", "civilDuskUtc": "2026-08-21T03:00:00Z", "nauticalDawnUtc": "2026-08-21T12:21:46Z", "nauticalDuskUtc": "2026-08-21T03:31:00Z", "astronomicalDawnUtc": "2026-08-21T11:49:27Z", "astronomicalDuskUtc": "2026-08-21T04:03:18Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-los-angeles-2026-09-21", "operation": "events", "tags": [ "published", "reference" ], "input": { "latitudeInDegrees": 34.0522, "longitudeInDegrees": -118.2437, "startUtc": "2026-09-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": "2026-09-21T13:41:00Z", "setUtc": "2026-09-21T01:52:00Z", "transitUtc": "2026-09-21T19:46:00Z", "civilDawnUtc": "2026-09-21T13:16:00Z", "civilDuskUtc": "2026-09-21T02:17:00Z", "nauticalDawnUtc": "2026-09-21T12:46:19Z", "nauticalDuskUtc": "2026-09-21T02:46:22Z", "astronomicalDawnUtc": "2026-09-21T12:16:46Z", "astronomicalDuskUtc": "2026-09-21T03:15:54Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-los-angeles-2026-10-21", "operation": "events", "tags": [ "published", "reference" ], "input": { "latitudeInDegrees": 34.0522, "longitudeInDegrees": -118.2437, "startUtc": "2026-10-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": "2026-10-21T14:03:00Z", "setUtc": "2026-10-21T01:13:00Z", "transitUtc": "2026-10-21T19:38:00Z", "civilDawnUtc": "2026-10-21T13:38:00Z", "civilDuskUtc": "2026-10-21T01:38:00Z", "nauticalDawnUtc": "2026-10-21T13:08:35Z", "nauticalDuskUtc": "2026-10-21T02:07:07Z", "astronomicalDawnUtc": "2026-10-21T12:39:33Z", "astronomicalDuskUtc": "2026-10-21T02:36:07Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-los-angeles-2026-11-21", "operation": "events", "tags": [ "published", "reference" ], "input": { "latitudeInDegrees": 34.0522, "longitudeInDegrees": -118.2437, "startUtc": "2026-11-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": "2026-11-21T14:31:00Z", "setUtc": "2026-11-21T00:47:00Z", "transitUtc": "2026-11-21T19:39:00Z", "civilDawnUtc": "2026-11-21T14:05:00Z", "civilDuskUtc": "2026-11-21T01:13:00Z", "nauticalDawnUtc": "2026-11-21T13:34:00Z", "nauticalDuskUtc": "2026-11-21T01:43:52Z", "astronomicalDawnUtc": "2026-11-21T13:04:06Z", "astronomicalDuskUtc": "2026-11-21T02:13:44Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-los-angeles-2026-12-21", "operation": "events", "tags": [ "published", "reference" ], "input": { "latitudeInDegrees": 34.0522, "longitudeInDegrees": -118.2437, "startUtc": "2026-12-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": "2026-12-21T14:55:00Z", "setUtc": "2026-12-21T00:47:00Z", "transitUtc": "2026-12-21T19:51:00Z", "civilDawnUtc": "2026-12-21T14:27:00Z", "civilDuskUtc": "2026-12-21T01:15:00Z", "nauticalDawnUtc": "2026-12-21T13:55:33Z", "nauticalDuskUtc": "2026-12-21T01:46:21Z", "astronomicalDawnUtc": "2026-12-21T13:25:00Z", "astronomicalDuskUtc": "2026-12-21T02:16:54Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-cairo-2026-01-21", "operation": "events", "tags": [ "published", "reference" ], "input": { "latitudeInDegrees": 30.0444, "longitudeInDegrees": 31.2357, "startUtc": "2026-01-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": "2026-01-21T04:50:00Z", "setUtc": "2026-01-21T15:22:00Z", "transitUtc": "2026-01-21T10:06:00Z", "civilDawnUtc": "2026-01-21T04:25:00Z", "civilDuskUtc": "2026-01-21T15:48:00Z", "nauticalDawnUtc": "2026-01-21T03:55:43Z", "nauticalDuskUtc": "2026-01-21T16:17:11Z", "astronomicalDawnUtc": "2026-01-21T03:27:04Z", "astronomicalDuskUtc": "2026-01-21T16:45:50Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-cairo-2026-02-21", "operation": "events", "tags": [ "published", "reference" ], "input": { "latitudeInDegrees": 30.0444, "longitudeInDegrees": 31.2357, "startUtc": "2026-02-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": "2026-02-21T04:29:00Z", "setUtc": "2026-02-21T15:48:00Z", "transitUtc": "2026-02-21T10:09:00Z", "civilDawnUtc": "2026-02-21T04:05:00Z", "civilDuskUtc": "2026-02-21T16:12:00Z", "nauticalDawnUtc": "2026-02-21T03:37:20Z", "nauticalDuskUtc": "2026-02-21T16:40:22Z", "astronomicalDawnUtc": "2026-02-21T03:09:34Z", "astronomicalDuskUtc": "2026-02-21T17:08:09Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-cairo-2026-03-21", "operation": "events", "tags": [ "published", "reference" ], "input": { "latitudeInDegrees": 30.0444, "longitudeInDegrees": 31.2357, "startUtc": "2026-03-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": "2026-03-21T03:58:00Z", "setUtc": "2026-03-21T16:07:00Z", "transitUtc": "2026-03-21T10:02:00Z", "civilDawnUtc": "2026-03-21T03:34:00Z", "civilDuskUtc": "2026-03-21T16:31:00Z", "nauticalDawnUtc": "2026-03-21T03:06:15Z", "nauticalDuskUtc": "2026-03-21T16:58:45Z", "astronomicalDawnUtc": "2026-03-21T02:38:11Z", "astronomicalDuskUtc": "2026-03-21T17:26:52Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-cairo-2026-04-21", "operation": "events", "tags": [ "published", "reference" ], "input": { "latitudeInDegrees": 30.0444, "longitudeInDegrees": 31.2357, "startUtc": "2026-04-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": "2026-04-21T03:22:00Z", "setUtc": "2026-04-21T16:26:00Z", "transitUtc": "2026-04-21T09:54:00Z", "civilDawnUtc": "2026-04-21T02:57:00Z", "civilDuskUtc": "2026-04-21T16:51:00Z", "nauticalDawnUtc": "2026-04-21T02:27:50Z", "nauticalDuskUtc": "2026-04-21T17:20:17Z", "astronomicalDawnUtc": "2026-04-21T01:57:36Z", "astronomicalDuskUtc": "2026-04-21T17:50:38Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-cairo-2026-05-21", "operation": "events", "tags": [ "published", "reference" ], "input": { "latitudeInDegrees": 30.0444, "longitudeInDegrees": 31.2357, "startUtc": "2026-05-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": "2026-05-21T02:58:00Z", "setUtc": "2026-05-21T16:45:00Z", "transitUtc": "2026-05-21T09:52:00Z", "civilDawnUtc": "2026-05-21T02:32:00Z", "civilDuskUtc": "2026-05-21T17:12:00Z", "nauticalDawnUtc": "2026-05-21T01:59:58Z", "nauticalDuskUtc": "2026-05-21T17:43:47Z", "astronomicalDawnUtc": "2026-05-21T01:26:16Z", "astronomicalDuskUtc": "2026-05-21T18:17:35Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-cairo-2026-06-21", "operation": "events", "tags": [ "published", "reference" ], "input": { "latitudeInDegrees": 30.0444, "longitudeInDegrees": 31.2357, "startUtc": "2026-06-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": "2026-06-21T02:54:00Z", "setUtc": "2026-06-21T16:59:00Z", "transitUtc": "2026-06-21T09:57:00Z", "civilDawnUtc": "2026-06-21T02:27:00Z", "civilDuskUtc": "2026-06-21T17:27:00Z", "nauticalDawnUtc": "2026-06-21T01:53:28Z", "nauticalDuskUtc": "2026-06-21T18:00:15Z", "astronomicalDawnUtc": "2026-06-21T01:17:41Z", "astronomicalDuskUtc": "2026-06-21T18:36:02Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-cairo-2026-07-21", "operation": "events", "tags": [ "published", "reference" ], "input": { "latitudeInDegrees": 30.0444, "longitudeInDegrees": 31.2357, "startUtc": "2026-07-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": "2026-07-21T03:07:00Z", "setUtc": "2026-07-21T16:55:00Z", "transitUtc": "2026-07-21T10:02:00Z", "civilDawnUtc": "2026-07-21T02:41:00Z", "civilDuskUtc": "2026-07-21T17:22:00Z", "nauticalDawnUtc": "2026-07-21T02:08:43Z", "nauticalDuskUtc": "2026-07-21T17:53:52Z", "astronomicalDawnUtc": "2026-07-21T01:34:49Z", "astronomicalDuskUtc": "2026-07-21T18:27:40Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-cairo-2026-08-21", "operation": "events", "tags": [ "published", "reference" ], "input": { "latitudeInDegrees": 30.0444, "longitudeInDegrees": 31.2357, "startUtc": "2026-08-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": "2026-08-21T03:26:00Z", "setUtc": "2026-08-21T16:30:00Z", "transitUtc": "2026-08-21T09:58:00Z", "civilDawnUtc": "2026-08-21T03:01:00Z", "civilDuskUtc": "2026-08-21T16:55:00Z", "nauticalDawnUtc": "2026-08-21T02:31:27Z", "nauticalDuskUtc": "2026-08-21T17:24:27Z", "astronomicalDawnUtc": "2026-08-21T02:01:04Z", "astronomicalDuskUtc": "2026-08-21T17:54:43Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-cairo-2026-09-21", "operation": "events", "tags": [ "published", "reference" ], "input": { "latitudeInDegrees": 30.0444, "longitudeInDegrees": 31.2357, "startUtc": "2026-09-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": "2026-09-21T03:43:00Z", "setUtc": "2026-09-21T15:53:00Z", "transitUtc": "2026-09-21T09:48:00Z", "civilDawnUtc": "2026-09-21T03:19:00Z", "civilDuskUtc": "2026-09-21T16:17:00Z", "nauticalDawnUtc": "2026-09-21T02:50:56Z", "nauticalDuskUtc": "2026-09-21T16:44:51Z", "astronomicalDawnUtc": "2026-09-21T02:22:47Z", "astronomicalDuskUtc": "2026-09-21T17:12:57Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-cairo-2026-10-21", "operation": "events", "tags": [ "published", "reference" ], "input": { "latitudeInDegrees": 30.0444, "longitudeInDegrees": 31.2357, "startUtc": "2026-10-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": 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"2026-11-21T16:19:56Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-cairo-2026-12-21", "operation": "events", "tags": [ "published", "reference" ], "input": { "latitudeInDegrees": 30.0444, "longitudeInDegrees": 31.2357, "startUtc": "2026-12-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": "2026-12-21T04:47:00Z", "setUtc": "2026-12-21T14:59:00Z", "transitUtc": "2026-12-21T09:53:00Z", "civilDawnUtc": "2026-12-21T04:20:00Z", "civilDuskUtc": "2026-12-21T15:26:00Z", "nauticalDawnUtc": "2026-12-21T03:50:26Z", "nauticalDuskUtc": "2026-12-21T15:55:43Z", "astronomicalDawnUtc": "2026-12-21T03:21:08Z", "astronomicalDuskUtc": "2026-12-21T16:25:01Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-delhi-2026-01-21", "operation": "events", "tags": [ "published", "reference" ], "input": { "latitudeInDegrees": 28.6139, "longitudeInDegrees": 77.209, "startUtc": "2026-01-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": 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false, "isAlwaysDown": false } }, { "id": "usno-events-nairobi-2026-06-21", "operation": "events", "tags": [ "published", "reference" ], "input": { "latitudeInDegrees": -1.2921, "longitudeInDegrees": 36.8219, "startUtc": "2026-06-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": "2026-06-21T03:33:00Z", "setUtc": "2026-06-21T15:36:00Z", "transitUtc": "2026-06-21T09:35:00Z", "civilDawnUtc": "2026-06-21T03:11:00Z", "civilDuskUtc": "2026-06-21T15:58:00Z", "nauticalDawnUtc": "2026-06-21T02:44:21Z", "nauticalDuskUtc": "2026-06-21T16:24:40Z", "astronomicalDawnUtc": "2026-06-21T02:18:05Z", "astronomicalDuskUtc": "2026-06-21T16:50:56Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-nairobi-2026-07-21", "operation": "events", "tags": [ "published", "reference" ], "input": { "latitudeInDegrees": -1.2921, "longitudeInDegrees": 36.8219, "startUtc": "2026-07-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": "2026-07-21T03:38:00Z", "setUtc": "2026-07-21T15:41:00Z", "transitUtc": "2026-07-21T09:39:00Z", "civilDawnUtc": "2026-07-21T03:15:00Z", "civilDuskUtc": "2026-07-21T16:03:00Z", "nauticalDawnUtc": "2026-07-21T02:49:50Z", "nauticalDuskUtc": "2026-07-21T16:28:28Z", "astronomicalDawnUtc": "2026-07-21T02:24:08Z", "astronomicalDuskUtc": "2026-07-21T16:54:09Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-nairobi-2026-08-21", "operation": "events", "tags": [ "published", "reference" ], "input": { "latitudeInDegrees": -1.2921, "longitudeInDegrees": 36.8219, "startUtc": "2026-08-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": "2026-08-21T03:34:00Z", "setUtc": "2026-08-21T15:38:00Z", "transitUtc": "2026-08-21T09:36:00Z", "civilDawnUtc": "2026-08-21T03:13:00Z", "civilDuskUtc": "2026-08-21T15:59:00Z", "nauticalDawnUtc": "2026-08-21T02:47:59Z", "nauticalDuskUtc": "2026-08-21T16:23:48Z", "astronomicalDawnUtc": "2026-08-21T02:23:26Z", "astronomicalDuskUtc": "2026-08-21T16:48:20Z", "isAlwaysUp": 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"2026-05-21T15:06:25Z", "astronomicalDuskUtc": "2026-05-21T05:46:08Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-kiribati-line-islands-2026-06-21", "operation": "events", "tags": [ "published", "reference" ], "input": { "latitudeInDegrees": 1.8721, "longitudeInDegrees": -157.4278, "startUtc": "2026-06-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": "2026-06-21T16:25:00Z", "setUtc": "2026-06-21T04:38:00Z", "transitUtc": "2026-06-21T22:32:00Z", "civilDawnUtc": "2026-06-21T16:02:00Z", "civilDuskUtc": "2026-06-21T05:01:00Z", "nauticalDawnUtc": "2026-06-21T15:35:49Z", "nauticalDuskUtc": "2026-06-21T05:27:13Z", "astronomicalDawnUtc": "2026-06-21T15:09:20Z", "astronomicalDuskUtc": "2026-06-21T05:53:42Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-kiribati-line-islands-2026-07-21", "operation": "events", "tags": [ "published", "reference" ], "input": { "latitudeInDegrees": 1.8721, "longitudeInDegrees": -157.4278, "startUtc": 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"2026-08-21T05:23:43Z", "astronomicalDawnUtc": "2026-08-21T15:17:29Z", "astronomicalDuskUtc": "2026-08-21T05:48:21Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-kiribati-line-islands-2026-09-21", "operation": "events", "tags": [ "published", "reference" ], "input": { "latitudeInDegrees": 1.8721, "longitudeInDegrees": -157.4278, "startUtc": "2026-09-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": "2026-09-21T16:19:00Z", "setUtc": "2026-09-21T04:26:00Z", "transitUtc": "2026-09-21T22:23:00Z", "civilDawnUtc": "2026-09-21T15:59:00Z", "civilDuskUtc": "2026-09-21T04:47:00Z", "nauticalDawnUtc": "2026-09-21T15:34:39Z", "nauticalDuskUtc": "2026-09-21T05:11:00Z", "astronomicalDawnUtc": "2026-09-21T15:10:38Z", "astronomicalDuskUtc": "2026-09-21T05:35:01Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-kiribati-line-islands-2026-10-21", "operation": "events", "tags": [ "published", "reference" ], "input": { "latitudeInDegrees": 1.8721, "longitudeInDegrees": -157.4278, "startUtc": "2026-10-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": "2026-10-21T16:12:00Z", "setUtc": "2026-10-21T04:16:00Z", "transitUtc": "2026-10-21T22:14:00Z", "civilDawnUtc": "2026-10-21T15:51:00Z", "civilDuskUtc": "2026-10-21T04:37:00Z", "nauticalDawnUtc": "2026-10-21T15:26:53Z", "nauticalDuskUtc": "2026-10-21T05:01:49Z", "astronomicalDawnUtc": "2026-10-21T15:02:27Z", "astronomicalDuskUtc": "2026-10-21T05:26:15Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-kiribati-line-islands-2026-11-21", "operation": "events", "tags": [ "published", "reference" ], "input": { "latitudeInDegrees": 1.8721, "longitudeInDegrees": -157.4278, "startUtc": "2026-11-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": "2026-11-21T16:15:00Z", "setUtc": "2026-11-21T04:16:00Z", "transitUtc": "2026-11-21T22:16:00Z", "civilDawnUtc": "2026-11-21T15:53:00Z", "civilDuskUtc": "2026-11-21T04:38:00Z", "nauticalDawnUtc": "2026-11-21T15:27:15Z", "nauticalDuskUtc": "2026-11-21T05:03:50Z", "astronomicalDawnUtc": "2026-11-21T15:01:39Z", "astronomicalDuskUtc": "2026-11-21T05:29:25Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-kiribati-line-islands-2026-12-21", "operation": "events", "tags": [ "published", "reference" ], "input": { "latitudeInDegrees": 1.8721, "longitudeInDegrees": -157.4278, "startUtc": "2026-12-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": "2026-12-21T16:27:00Z", "setUtc": "2026-12-21T04:28:00Z", "transitUtc": "2026-12-21T22:28:00Z", "civilDawnUtc": "2026-12-21T16:05:00Z", "civilDuskUtc": "2026-12-21T04:51:00Z", "nauticalDawnUtc": "2026-12-21T15:38:46Z", "nauticalDuskUtc": "2026-12-21T05:16:43Z", "astronomicalDawnUtc": "2026-12-21T15:12:31Z", "astronomicalDuskUtc": "2026-12-21T05:42:58Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-jakarta-2026-01-21", "operation": "events", "tags": [ "published", "reference" ], "input": { 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"nauticalDawnUtc": "2026-11-21T21:37:45Z", "nauticalDuskUtc": "2026-11-21T11:39:14Z", "astronomicalDawnUtc": "2026-11-21T21:11:34Z", "astronomicalDuskUtc": "2026-11-21T12:05:24Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-jakarta-2026-12-21", "operation": "events", "tags": [ "published", "reference" ], "input": { "latitudeInDegrees": -6.2088, "longitudeInDegrees": 106.8456, "startUtc": "2026-12-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": "2026-12-21T22:36:00Z", "setUtc": "2026-12-21T11:05:00Z", "transitUtc": "2026-12-21T04:51:00Z", "civilDawnUtc": "2026-12-21T22:14:00Z", "civilDuskUtc": "2026-12-21T11:28:00Z", "nauticalDawnUtc": "2026-12-21T21:47:01Z", "nauticalDuskUtc": "2026-12-21T11:54:32Z", "astronomicalDawnUtc": "2026-12-21T21:20:04Z", "astronomicalDuskUtc": "2026-12-21T12:21:29Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-lima-2026-01-21", "operation": "events", "tags": [ "published", "reference" ], "input": 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"nauticalDawnUtc": "2026-08-21T10:31:46Z", "nauticalDuskUtc": "2026-08-21T23:50:56Z", "astronomicalDawnUtc": "2026-08-21T10:06:54Z", "astronomicalDuskUtc": "2026-08-21T00:15:49Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-lima-2026-09-21", "operation": "events", "tags": [ "published", "reference" ], "input": { "latitudeInDegrees": -12.0464, "longitudeInDegrees": -77.0428, "startUtc": "2026-09-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": "2026-09-21T10:58:00Z", "setUtc": "2026-09-21T23:04:00Z", "transitUtc": "2026-09-21T17:01:00Z", "civilDawnUtc": "2026-09-21T10:37:00Z", "civilDuskUtc": "2026-09-21T23:25:00Z", "nauticalDawnUtc": "2026-09-21T10:12:43Z", "nauticalDuskUtc": "2026-09-21T23:49:49Z", "astronomicalDawnUtc": "2026-09-21T09:48:10Z", "astronomicalDuskUtc": "2026-09-21T00:14:24Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-lima-2026-10-21", "operation": "events", "tags": [ "published", "reference" ], "input": { 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"nauticalDawnUtc": "2026-11-21T09:43:19Z", "nauticalDuskUtc": "2026-11-21T00:04:29Z", "astronomicalDawnUtc": "2026-11-21T09:16:17Z", "astronomicalDuskUtc": "2026-11-21T00:31:30Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-lima-2026-12-21", "operation": "events", "tags": [ "published", "reference" ], "input": { "latitudeInDegrees": -12.0464, "longitudeInDegrees": -77.0428, "startUtc": "2026-12-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": "2026-12-21T10:41:00Z", "setUtc": "2026-12-21T23:31:00Z", "transitUtc": "2026-12-21T17:06:00Z", "civilDawnUtc": "2026-12-21T10:18:00Z", "civilDuskUtc": "2026-12-21T23:55:00Z", "nauticalDawnUtc": "2026-12-21T09:50:32Z", "nauticalDuskUtc": "2026-12-21T00:21:39Z", "astronomicalDawnUtc": "2026-12-21T09:22:34Z", "astronomicalDuskUtc": "2026-12-21T00:49:37Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-suva-2026-01-21", "operation": "events", "tags": [ "published", "reference" ], "input": { 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"nauticalDawnUtc": "2026-02-21T17:14:09Z", "nauticalDuskUtc": "2026-02-21T07:25:36Z", "astronomicalDawnUtc": "2026-02-21T16:47:48Z", "astronomicalDuskUtc": "2026-02-21T07:51:57Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-suva-2026-03-21", "operation": "events", "tags": [ "published", "reference" ], "input": { "latitudeInDegrees": -18.1248, "longitudeInDegrees": 178.4501, "startUtc": "2026-03-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": "2026-03-21T18:10:00Z", "setUtc": "2026-03-21T06:17:00Z", "transitUtc": "2026-03-21T00:13:00Z", "civilDawnUtc": "2026-03-21T17:49:00Z", "civilDuskUtc": "2026-03-21T06:38:00Z", "nauticalDawnUtc": "2026-03-21T17:23:19Z", "nauticalDuskUtc": "2026-03-21T07:03:35Z", "astronomicalDawnUtc": "2026-03-21T16:57:59Z", "astronomicalDuskUtc": "2026-03-21T07:28:54Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-suva-2026-04-21", "operation": "events", "tags": [ "published", "reference" ], "input": { 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"nauticalDawnUtc": "2026-05-21T17:37:03Z", "nauticalDuskUtc": "2026-05-21T06:28:39Z", "astronomicalDawnUtc": "2026-05-21T17:10:39Z", "astronomicalDuskUtc": "2026-05-21T06:55:01Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-suva-2026-06-21", "operation": "events", "tags": [ "published", "reference" ], "input": { "latitudeInDegrees": -18.1248, "longitudeInDegrees": 178.4501, "startUtc": "2026-06-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": "2026-06-21T18:37:00Z", "setUtc": "2026-06-21T05:39:00Z", "transitUtc": "2026-06-21T00:08:00Z", "civilDawnUtc": "2026-06-21T18:13:00Z", "civilDuskUtc": "2026-06-21T06:03:00Z", "nauticalDawnUtc": "2026-06-21T17:45:55Z", "nauticalDuskUtc": "2026-06-21T06:30:07Z", "astronomicalDawnUtc": "2026-06-21T17:19:00Z", "astronomicalDuskUtc": "2026-06-21T06:57:02Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-suva-2026-07-21", "operation": "events", "tags": [ "published", "reference" ], "input": { 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"nauticalDawnUtc": "2026-08-21T17:33:47Z", "nauticalDuskUtc": "2026-08-21T06:44:46Z", "astronomicalDawnUtc": "2026-08-21T17:08:18Z", "astronomicalDuskUtc": "2026-08-21T07:10:16Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-suva-2026-09-21", "operation": "events", "tags": [ "published", "reference" ], "input": { "latitudeInDegrees": -18.1248, "longitudeInDegrees": 178.4501, "startUtc": "2026-09-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": "2026-09-21T17:56:00Z", "setUtc": "2026-09-21T06:02:00Z", "civilDawnUtc": "2026-09-21T17:35:00Z", "civilDuskUtc": "2026-09-21T06:24:00Z", "nauticalDawnUtc": "2026-09-21T17:09:20Z", "nauticalDuskUtc": "2026-09-21T06:49:00Z", "astronomicalDawnUtc": "2026-09-21T16:44:01Z", "astronomicalDuskUtc": "2026-09-21T07:14:20Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-suva-2026-10-21", "operation": "events", "tags": [ "published", "reference" ], "input": { "latitudeInDegrees": -18.1248, 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"nauticalDuskUtc": "2026-11-21T07:14:17Z", "astronomicalDawnUtc": "2026-11-21T16:01:12Z", "astronomicalDuskUtc": "2026-11-21T07:42:44Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-suva-2026-12-21", "operation": "events", "tags": [ "published", "reference" ], "input": { "latitudeInDegrees": -18.1248, "longitudeInDegrees": 178.4501, "startUtc": "2026-12-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": "2026-12-21T17:28:00Z", "setUtc": "2026-12-21T06:41:00Z", "transitUtc": "2026-12-21T00:04:00Z", "civilDawnUtc": "2026-12-21T17:04:00Z", "civilDuskUtc": "2026-12-21T07:05:00Z", "nauticalDawnUtc": "2026-12-21T16:34:57Z", "nauticalDuskUtc": "2026-12-21T07:33:35Z", "astronomicalDawnUtc": "2026-12-21T16:05:20Z", "astronomicalDuskUtc": "2026-12-21T08:03:11Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-tonga-2026-01-21", "operation": "events", "tags": [ "published", "reference" ], "input": { "latitudeInDegrees": -21.1394, 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"nauticalDuskUtc": "2026-02-21T07:03:52Z", "astronomicalDawnUtc": "2026-02-21T16:18:07Z", "astronomicalDuskUtc": "2026-02-21T07:30:54Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-tonga-2026-03-21", "operation": "events", "tags": [ "published", "reference" ], "input": { "latitudeInDegrees": -21.1394, "longitudeInDegrees": -175.2018, "startUtc": "2026-03-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": "2026-03-21T17:45:00Z", "setUtc": "2026-03-21T05:51:00Z", "transitUtc": "2026-03-21T23:48:00Z", "civilDawnUtc": "2026-03-21T17:23:00Z", "civilDuskUtc": "2026-03-21T06:13:00Z", "nauticalDawnUtc": "2026-03-21T16:57:04Z", "nauticalDuskUtc": "2026-03-21T06:39:07Z", "astronomicalDawnUtc": "2026-03-21T16:31:12Z", "astronomicalDuskUtc": "2026-03-21T07:04:57Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-tonga-2026-04-21", "operation": "events", "tags": [ "published", "reference" ], "input": { "latitudeInDegrees": -21.1394, 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"nauticalDuskUtc": "2026-05-21T05:59:15Z", "astronomicalDawnUtc": "2026-05-21T16:48:52Z", "astronomicalDuskUtc": "2026-05-21T06:26:03Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-tonga-2026-06-21", "operation": "events", "tags": [ "published", "reference" ], "input": { "latitudeInDegrees": -21.1394, "longitudeInDegrees": -175.2018, "startUtc": "2026-06-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": "2026-06-21T18:17:00Z", "setUtc": "2026-06-21T05:08:00Z", "transitUtc": "2026-06-21T23:43:00Z", "civilDawnUtc": "2026-06-21T17:53:00Z", "civilDuskUtc": "2026-06-21T05:32:00Z", "nauticalDawnUtc": "2026-06-21T17:25:24Z", "nauticalDuskUtc": "2026-06-21T05:59:50Z", "astronomicalDawnUtc": "2026-06-21T16:58:03Z", "astronomicalDuskUtc": "2026-06-21T06:27:11Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-tonga-2026-07-21", "operation": "events", "tags": [ "published", "reference" ], "input": { "latitudeInDegrees": -21.1394, 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"nauticalDuskUtc": "2026-02-21T22:17:30Z", "astronomicalDawnUtc": "2026-02-21T07:27:02Z", "astronomicalDuskUtc": "2026-02-21T22:44:56Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-rio-2026-03-21", "operation": "events", "tags": [ "published", "reference" ], "input": { "latitudeInDegrees": -22.9068, "longitudeInDegrees": -43.1729, "startUtc": "2026-03-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": "2026-03-21T08:57:00Z", "setUtc": "2026-03-21T21:02:00Z", "transitUtc": "2026-03-21T15:00:00Z", "civilDawnUtc": "2026-03-21T08:34:00Z", "civilDuskUtc": "2026-03-21T21:25:00Z", "nauticalDawnUtc": "2026-03-21T08:08:12Z", "nauticalDuskUtc": "2026-03-21T21:51:00Z", "astronomicalDawnUtc": "2026-03-21T07:41:59Z", "astronomicalDuskUtc": "2026-03-21T22:17:10Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-rio-2026-04-21", "operation": "events", "tags": [ "published", "reference" ], "input": { "latitudeInDegrees": -22.9068, 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"nauticalDuskUtc": "2026-08-21T21:28:21Z", "astronomicalDawnUtc": "2026-08-21T07:57:21Z", "astronomicalDuskUtc": "2026-08-21T21:54:36Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-rio-2026-09-21", "operation": "events", "tags": [ "published", "reference" ], "input": { "latitudeInDegrees": -22.9068, "longitudeInDegrees": -43.1729, "startUtc": "2026-09-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": "2026-09-21T08:43:00Z", "setUtc": "2026-09-21T20:49:00Z", "transitUtc": "2026-09-21T14:46:00Z", "civilDawnUtc": "2026-09-21T08:21:00Z", "civilDuskUtc": "2026-09-21T21:11:00Z", "nauticalDawnUtc": "2026-09-21T07:54:47Z", "nauticalDuskUtc": "2026-09-21T21:37:03Z", "astronomicalDawnUtc": "2026-09-21T07:28:37Z", "astronomicalDuskUtc": "2026-09-21T22:03:16Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-rio-2026-10-21", "operation": "events", "tags": [ "published", "reference" ], "input": { "latitudeInDegrees": -22.9068, 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"nauticalDuskUtc": "2026-11-21T22:11:38Z", "astronomicalDawnUtc": "2026-11-21T06:35:51Z", "astronomicalDuskUtc": "2026-11-21T22:41:43Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-rio-2026-12-21", "operation": "events", "tags": [ "published", "reference" ], "input": { "latitudeInDegrees": -22.9068, "longitudeInDegrees": -43.1729, "startUtc": "2026-12-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": "2026-12-21T08:04:00Z", "setUtc": "2026-12-21T21:37:00Z", "transitUtc": "2026-12-21T14:51:00Z", "civilDawnUtc": "2026-12-21T07:39:00Z", "civilDuskUtc": "2026-12-21T22:02:00Z", "nauticalDawnUtc": "2026-12-21T07:09:00Z", "nauticalDuskUtc": "2026-12-21T22:32:38Z", "astronomicalDawnUtc": "2026-12-21T06:37:31Z", "astronomicalDuskUtc": "2026-12-21T23:04:07Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-johannesburg-2026-01-21", "operation": "events", "tags": [ "published", "reference" ], "input": { "latitudeInDegrees": -26.2041, 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"2026-02-21T03:04:54Z", "nauticalDuskUtc": "2026-02-21T17:37:21Z", "astronomicalDawnUtc": "2026-02-21T02:36:23Z", "astronomicalDuskUtc": "2026-02-21T18:05:46Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-johannesburg-2026-03-21", "operation": "events", "tags": [ "published", "reference" ], "input": { "latitudeInDegrees": -26.2041, "longitudeInDegrees": 28.0473, "startUtc": "2026-03-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": "2026-03-21T04:12:00Z", "setUtc": "2026-03-21T16:18:00Z", "transitUtc": "2026-03-21T10:15:00Z", "civilDawnUtc": "2026-03-21T03:49:00Z", "civilDuskUtc": "2026-03-21T16:41:00Z", "nauticalDawnUtc": "2026-03-21T03:21:54Z", "nauticalDuskUtc": "2026-03-21T17:07:36Z", "astronomicalDawnUtc": "2026-03-21T02:54:55Z", "astronomicalDuskUtc": "2026-03-21T17:34:32Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-johannesburg-2026-04-21", "operation": "events", "tags": [ "published", "reference" ], "input": { 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"2026-08-21T16:14:00Z", "nauticalDawnUtc": "2026-08-21T03:40:54Z", "nauticalDuskUtc": "2026-08-21T16:41:26Z", "astronomicalDawnUtc": "2026-08-21T03:14:00Z", "astronomicalDuskUtc": "2026-08-21T17:08:21Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-johannesburg-2026-09-21", "operation": "events", "tags": [ "published", "reference" ], "input": { "latitudeInDegrees": -26.2041, "longitudeInDegrees": 28.0473, "startUtc": "2026-09-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": "2026-09-21T03:59:00Z", "setUtc": "2026-09-21T16:04:00Z", "transitUtc": "2026-09-21T10:01:00Z", "civilDawnUtc": "2026-09-21T03:36:00Z", "civilDuskUtc": "2026-09-21T16:27:00Z", "nauticalDawnUtc": "2026-09-21T03:08:54Z", "nauticalDuskUtc": "2026-09-21T16:53:23Z", "astronomicalDawnUtc": "2026-09-21T02:41:59Z", "astronomicalDuskUtc": "2026-09-21T17:20:21Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-johannesburg-2026-10-21", "operation": "events", "tags": [ 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"2026-02-21T08:10:39Z", "nauticalDuskUtc": "2026-02-21T01:23:47Z", "astronomicalDawnUtc": "2026-02-21T07:10:57Z", "astronomicalDuskUtc": "2026-02-21T02:23:27Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-ushuaia-2026-03-21", "operation": "events", "tags": [ "published", "reference" ], "input": { "latitudeInDegrees": -54.8019, "longitudeInDegrees": -68.303, "startUtc": "2026-03-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": "2026-03-21T10:36:00Z", "setUtc": "2026-03-21T22:43:00Z", "transitUtc": "2026-03-21T16:40:00Z", "civilDawnUtc": "2026-03-21T10:00:00Z", "civilDuskUtc": "2026-03-21T23:19:00Z", "nauticalDawnUtc": "2026-03-21T09:17:41Z", "nauticalDuskUtc": "2026-03-21T00:04:07Z", "astronomicalDawnUtc": "2026-03-21T08:32:42Z", "astronomicalDuskUtc": "2026-03-21T00:49:02Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-ushuaia-2026-04-21", "operation": "events", "tags": [ "published", "reference" ], "input": { 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"nauticalDawnUtc": "2026-11-21T06:03:46Z", "nauticalDuskUtc": "2026-11-21T02:33:42Z", "astronomicalDawnUtc": null, "astronomicalDuskUtc": null, "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-ushuaia-2026-12-21", "operation": "events", "tags": [ "published", "reference" ], "input": { "latitudeInDegrees": -54.8019, "longitudeInDegrees": -68.303, "startUtc": "2026-12-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": "2026-12-21T07:51:00Z", "setUtc": "2026-12-21T01:11:00Z", "transitUtc": "2026-12-21T16:31:00Z", "civilDawnUtc": "2026-12-21T06:54:00Z", "civilDuskUtc": "2026-12-21T02:08:00Z", "nauticalDawnUtc": null, "nauticalDuskUtc": null, "astronomicalDawnUtc": null, "astronomicalDuskUtc": null, "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-mcmurdo-2026-01-21", "operation": "events", "tags": [ "published", "reference", "polar" ], "input": { "latitudeInDegrees": -77.8419, "longitudeInDegrees": 166.6863, "startUtc": "2026-01-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": null, "setUtc": null, "transitUtc": "2026-01-21T01:04:00Z", "civilDawnUtc": null, "civilDuskUtc": null, "nauticalDawnUtc": null, "nauticalDuskUtc": null, "astronomicalDawnUtc": null, "astronomicalDuskUtc": null, "isAlwaysUp": true, "isAlwaysDown": false } }, { "id": "usno-events-mcmurdo-2026-02-21", "operation": "events", "tags": [ "published", "reference", "polar" ], "input": { "latitudeInDegrees": -77.8419, "longitudeInDegrees": 166.6863, "startUtc": "2026-02-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": "2026-02-21T14:37:00Z", "setUtc": "2026-02-21T11:39:00Z", "transitUtc": "2026-02-21T01:07:00Z", "civilDawnUtc": null, "civilDuskUtc": null, "nauticalDawnUtc": null, "nauticalDuskUtc": null, "astronomicalDawnUtc": null, "astronomicalDuskUtc": null, "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-mcmurdo-2026-03-21", "operation": "events", "tags": [ "published", "reference", 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"nauticalDawnUtc": "2026-04-21T18:47:46Z", "nauticalDuskUtc": "2026-04-21T06:59:11Z", "astronomicalDawnUtc": "2026-04-21T16:48:58Z", "astronomicalDuskUtc": "2026-04-21T08:57:15Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-mcmurdo-2026-05-21", "operation": "events", "tags": [ "published", "reference", "polar" ], "input": { "latitudeInDegrees": -77.8419, "longitudeInDegrees": 166.6863, "startUtc": "2026-05-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": null, "setUtc": null, "civilDawnUtc": null, "civilDuskUtc": null, "nauticalDawnUtc": "2026-05-21T21:37:10Z", "nauticalDuskUtc": "2026-05-21T04:06:21Z", "astronomicalDawnUtc": "2026-05-21T19:25:10Z", "astronomicalDuskUtc": "2026-05-21T06:16:38Z", "isAlwaysUp": false, "isAlwaysDown": true } }, { "id": "usno-events-mcmurdo-2026-06-21", "operation": "events", "tags": [ "published", "reference", "polar", "edge" ], "note": "Polar night: always down, but nautical and astronomical twilight still come and go.", "input": { "latitudeInDegrees": -77.8419, "longitudeInDegrees": 166.6863, "startUtc": "2026-06-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": null, "setUtc": null, "civilDawnUtc": null, "civilDuskUtc": null, "nauticalDawnUtc": "2026-06-21T23:32:59Z", "nauticalDuskUtc": "2026-06-21T02:17:07Z", "astronomicalDawnUtc": "2026-06-21T20:32:46Z", "astronomicalDuskUtc": "2026-06-21T05:17:22Z", "isAlwaysUp": false, "isAlwaysDown": true } }, { "id": "usno-events-mcmurdo-2026-07-21", "operation": "events", "tags": [ "published", "reference", "polar" ], "input": { "latitudeInDegrees": -77.8419, "longitudeInDegrees": 166.6863, "startUtc": "2026-07-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": null, "setUtc": null, "civilDawnUtc": null, "civilDuskUtc": null, "nauticalDawnUtc": "2026-07-21T21:47:04Z", "nauticalDuskUtc": "2026-07-21T04:08:34Z", "astronomicalDawnUtc": "2026-07-21T19:35:44Z", "astronomicalDuskUtc": "2026-07-21T06:21:38Z", "isAlwaysUp": false, "isAlwaysDown": true } }, { "id": "usno-events-mcmurdo-2026-08-21", "operation": "events", "tags": [ "published", "reference", "polar" ], "input": { "latitudeInDegrees": -77.8419, "longitudeInDegrees": 166.6863, "startUtc": "2026-08-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": "2026-08-21T23:15:00Z", "setUtc": "2026-08-21T02:24:00Z", "transitUtc": "2026-08-21T00:57:00Z", "civilDawnUtc": "2026-08-21T20:48:00Z", "civilDuskUtc": "2026-08-21T05:00:00Z", "nauticalDawnUtc": "2026-08-21T18:49:35Z", "nauticalDuskUtc": "2026-08-21T07:00:11Z", "astronomicalDawnUtc": "2026-08-21T16:51:35Z", "astronomicalDuskUtc": "2026-08-21T08:58:55Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-mcmurdo-2026-09-21", "operation": "events", "tags": [ "published", "reference", "polar" ], "input": { "latitudeInDegrees": -77.8419, "longitudeInDegrees": 166.6863, "startUtc": "2026-09-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": "2026-09-21T18:39:00Z", "setUtc": "2026-09-21T06:50:00Z", "transitUtc": "2026-09-21T00:47:00Z", "civilDawnUtc": "2026-09-21T16:58:00Z", "civilDuskUtc": "2026-09-21T08:32:00Z", "nauticalDawnUtc": "2026-09-21T14:04:28Z", "nauticalDuskUtc": "2026-09-21T11:25:50Z", "astronomicalDawnUtc": null, "astronomicalDuskUtc": null, "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-mcmurdo-2026-10-21", "operation": "events", "tags": [ "published", "reference", "polar" ], "input": { "latitudeInDegrees": -77.8419, "longitudeInDegrees": 166.6863, "startUtc": "2026-10-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": "2026-10-21T13:45:00Z", "setUtc": "2026-10-21T11:29:00Z", "transitUtc": "2026-10-21T00:38:00Z", "civilDawnUtc": null, "civilDuskUtc": null, "nauticalDawnUtc": null, "nauticalDuskUtc": null, "astronomicalDawnUtc": null, "astronomicalDuskUtc": null, "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-mcmurdo-2026-11-21", "operation": "events", "tags": [ "published", "reference", "polar" ], "input": { "latitudeInDegrees": -77.8419, "longitudeInDegrees": 166.6863, "startUtc": "2026-11-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": null, "setUtc": null, "transitUtc": "2026-11-21T00:39:00Z", "civilDawnUtc": null, "civilDuskUtc": null, "nauticalDawnUtc": null, "nauticalDuskUtc": null, "astronomicalDawnUtc": null, "astronomicalDuskUtc": null, "isAlwaysUp": true, "isAlwaysDown": false } }, { "id": "usno-events-mcmurdo-2026-12-21", "operation": "events", "tags": [ "published", "reference", "polar", "edge" ], "input": { "latitudeInDegrees": -77.8419, "longitudeInDegrees": 166.6863, "startUtc": "2026-12-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": null, "setUtc": null, "transitUtc": "2026-12-21T00:51:00Z", "civilDawnUtc": null, "civilDuskUtc": null, "nauticalDawnUtc": null, "nauticalDuskUtc": null, "astronomicalDawnUtc": null, "astronomicalDuskUtc": null, "isAlwaysUp": true, "isAlwaysDown": false } }, { "id": "usno-events-amundsen-scott-2026-01-21", "operation": "events", "tags": [ "published", "reference", "polar" ], "input": { "latitudeInDegrees": -89.99, "longitudeInDegrees": 0.0, "startUtc": "2026-01-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": null, "setUtc": null, "transitUtc": "2026-01-21T12:11:00Z", "civilDawnUtc": null, "civilDuskUtc": null, "nauticalDawnUtc": null, "nauticalDuskUtc": null, "astronomicalDawnUtc": null, "astronomicalDuskUtc": null, "isAlwaysUp": true, "isAlwaysDown": false } }, { "id": "usno-events-amundsen-scott-2026-02-21", "operation": "events", "tags": [ "published", "reference", "polar" ], "input": { "latitudeInDegrees": -89.99, "longitudeInDegrees": 0.0, "startUtc": "2026-02-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": null, "setUtc": null, "transitUtc": "2026-02-21T12:14:00Z", "civilDawnUtc": null, "civilDuskUtc": null, "nauticalDawnUtc": null, "nauticalDuskUtc": null, "astronomicalDawnUtc": null, "astronomicalDuskUtc": null, "isAlwaysUp": true, "isAlwaysDown": false } }, { "id": "usno-events-amundsen-scott-2026-03-21", "operation": "events", "tags": [ "published", "reference", "polar" ], "input": { "latitudeInDegrees": -89.99, "longitudeInDegrees": 0.0, "startUtc": "2026-03-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": null, "setUtc": null, "transitUtc": "2026-03-21T12:07:00Z", "civilDawnUtc": null, "civilDuskUtc": null, "nauticalDawnUtc": null, "nauticalDuskUtc": null, "astronomicalDawnUtc": null, "astronomicalDuskUtc": null, "isAlwaysUp": true, "isAlwaysDown": false } }, { "id": "usno-events-amundsen-scott-2026-04-21", "operation": "events", "tags": [ "published", "reference", "polar" ], "input": { "latitudeInDegrees": -89.99, "longitudeInDegrees": 0.0, "startUtc": "2026-04-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": null, "setUtc": null, "civilDawnUtc": null, "civilDuskUtc": null, "astronomicalDawnUtc": null, "astronomicalDuskUtc": null, "isAlwaysUp": false, "isAlwaysDown": true } }, { "id": "usno-events-amundsen-scott-2026-05-21", "operation": "events", "tags": [ "published", "reference", "polar" ], "input": { "latitudeInDegrees": -89.99, "longitudeInDegrees": 0.0, "startUtc": "2026-05-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": null, "setUtc": null, "civilDawnUtc": null, "civilDuskUtc": null, "nauticalDawnUtc": null, "nauticalDuskUtc": null, "astronomicalDawnUtc": null, "astronomicalDuskUtc": null, "isAlwaysUp": false, "isAlwaysDown": true } }, { "id": "usno-events-amundsen-scott-2026-06-21", "operation": "events", "tags": [ "published", "reference", "polar", "edge" ], "input": { "latitudeInDegrees": -89.99, "longitudeInDegrees": 0.0, "startUtc": "2026-06-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": null, "setUtc": null, "civilDawnUtc": null, "civilDuskUtc": null, "nauticalDawnUtc": null, "nauticalDuskUtc": null, "astronomicalDawnUtc": null, "astronomicalDuskUtc": null, "isAlwaysUp": false, "isAlwaysDown": true } }, { "id": "usno-events-amundsen-scott-2026-07-21", "operation": "events", "tags": [ "published", "reference", "polar" ], "input": { "latitudeInDegrees": -89.99, "longitudeInDegrees": 0.0, "startUtc": "2026-07-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": null, "setUtc": null, "civilDawnUtc": null, "civilDuskUtc": null, "nauticalDawnUtc": null, "nauticalDuskUtc": null, "astronomicalDawnUtc": null, "astronomicalDuskUtc": null, "isAlwaysUp": false, "isAlwaysDown": true } }, { "id": "usno-events-amundsen-scott-2026-08-21", "operation": "events", "tags": [ "published", "reference", "polar" ], "input": { "latitudeInDegrees": -89.99, "longitudeInDegrees": 0.0, "startUtc": "2026-08-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": null, "setUtc": null, "civilDawnUtc": null, "civilDuskUtc": null, "astronomicalDawnUtc": null, "astronomicalDuskUtc": null, "isAlwaysUp": false, "isAlwaysDown": true } }, { "id": "usno-events-amundsen-scott-2026-09-21", "operation": "events", "tags": [ "published", "reference", "polar" ], "input": { "latitudeInDegrees": -89.99, "longitudeInDegrees": 0.0, "startUtc": "2026-09-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": null, "setUtc": null, "transitUtc": "2026-09-21T11:53:00Z", "civilDawnUtc": null, "civilDuskUtc": null, "nauticalDawnUtc": null, "nauticalDuskUtc": null, "astronomicalDawnUtc": null, "astronomicalDuskUtc": null, "isAlwaysUp": true, "isAlwaysDown": false } }, { "id": "usno-events-amundsen-scott-2026-10-21", "operation": "events", "tags": [ "published", "reference", "polar" ], "input": { "latitudeInDegrees": -89.99, "longitudeInDegrees": 0.0, "startUtc": "2026-10-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": null, "setUtc": null, "transitUtc": "2026-10-21T11:45:00Z", "civilDawnUtc": null, "civilDuskUtc": null, "nauticalDawnUtc": null, "nauticalDuskUtc": null, "astronomicalDawnUtc": null, "astronomicalDuskUtc": null, "isAlwaysUp": true, "isAlwaysDown": false } }, { "id": "usno-events-amundsen-scott-2026-11-21", "operation": "events", "tags": [ "published", "reference", "polar" ], "input": { "latitudeInDegrees": -89.99, "longitudeInDegrees": 0.0, "startUtc": "2026-11-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": null, "setUtc": null, "transitUtc": "2026-11-21T11:46:00Z", "civilDawnUtc": null, "civilDuskUtc": null, "nauticalDawnUtc": null, "nauticalDuskUtc": null, "astronomicalDawnUtc": null, "astronomicalDuskUtc": null, "isAlwaysUp": true, "isAlwaysDown": false } }, { "id": "usno-events-amundsen-scott-2026-12-21", "operation": "events", "tags": [ "published", "reference", "polar", "edge" ], "note": "Near the south pole in December: always up.", "input": { "latitudeInDegrees": -89.99, "longitudeInDegrees": 0.0, "startUtc": "2026-12-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": null, "setUtc": null, "transitUtc": "2026-12-21T11:58:00Z", "civilDawnUtc": null, "civilDuskUtc": null, "nauticalDawnUtc": null, "nauticalDuskUtc": null, "astronomicalDawnUtc": null, "astronomicalDuskUtc": null, "isAlwaysUp": true, "isAlwaysDown": false } }, { "id": "usno-events-chatham-islands-2026-01-21", "operation": "events", "tags": [ "published", "reference" ], "input": { "latitudeInDegrees": -43.95, "longitudeInDegrees": -176.55, "startUtc": "2026-01-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": "2026-01-21T16:31:00Z", "setUtc": "2026-01-21T07:24:00Z", "transitUtc": "2026-01-21T23:58:00Z", "civilDawnUtc": "2026-01-21T15:57:00Z", "civilDuskUtc": "2026-01-21T07:58:00Z", "nauticalDawnUtc": "2026-01-21T15:14:08Z", "nauticalDuskUtc": "2026-01-21T08:41:14Z", "astronomicalDawnUtc": "2026-01-21T14:23:40Z", "astronomicalDuskUtc": "2026-01-21T09:31:42Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-chatham-islands-2026-02-21", "operation": "events", "tags": [ "published", "reference" ], "input": { "latitudeInDegrees": -43.95, "longitudeInDegrees": -176.55, "startUtc": "2026-02-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": "2026-02-21T17:14:00Z", "setUtc": "2026-02-21T06:46:00Z", "civilDawnUtc": "2026-02-21T16:44:00Z", "civilDuskUtc": "2026-02-21T07:16:00Z", "nauticalDawnUtc": "2026-02-21T16:07:32Z", "nauticalDuskUtc": "2026-02-21T07:52:36Z", "astronomicalDawnUtc": "2026-02-21T15:28:26Z", "astronomicalDuskUtc": "2026-02-21T08:31:40Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-chatham-islands-2026-03-21", "operation": "events", "tags": [ "published", "reference" ], "input": { "latitudeInDegrees": -43.95, "longitudeInDegrees": -176.55, "startUtc": "2026-03-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": "2026-03-21T17:50:00Z", "setUtc": "2026-03-21T05:57:00Z", "transitUtc": "2026-03-21T23:53:00Z", "civilDawnUtc": "2026-03-21T17:22:00Z", "civilDuskUtc": "2026-03-21T06:26:00Z", "nauticalDawnUtc": "2026-03-21T16:47:53Z", "nauticalDuskUtc": "2026-03-21T06:59:27Z", "astronomicalDawnUtc": "2026-03-21T16:13:25Z", "astronomicalDuskUtc": "2026-03-21T07:33:53Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-chatham-islands-2026-04-21", "operation": "events", "tags": [ "published", "reference" ], "input": { "latitudeInDegrees": -43.95, "longitudeInDegrees": -176.55, "startUtc": "2026-04-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": "2026-04-21T18:28:00Z", "setUtc": "2026-04-21T05:03:00Z", "transitUtc": "2026-04-21T23:45:00Z", "civilDawnUtc": "2026-04-21T17:58:00Z", "civilDuskUtc": "2026-04-21T05:32:00Z", "nauticalDawnUtc": "2026-04-21T17:24:16Z", "nauticalDuskUtc": "2026-04-21T06:06:07Z", "astronomicalDawnUtc": "2026-04-21T16:50:51Z", "astronomicalDuskUtc": "2026-04-21T06:39:28Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-chatham-islands-2026-05-21", "operation": "events", "tags": [ "published", "reference" ], "input": { "latitudeInDegrees": -43.95, "longitudeInDegrees": -176.55, "startUtc": "2026-05-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": "2026-05-21T19:01:00Z", "setUtc": "2026-05-21T04:25:00Z", "transitUtc": "2026-05-21T23:43:00Z", "civilDawnUtc": "2026-05-21T18:29:00Z", "civilDuskUtc": "2026-05-21T04:57:00Z", "nauticalDawnUtc": "2026-05-21T17:53:58Z", "nauticalDuskUtc": "2026-05-21T05:32:02Z", "astronomicalDawnUtc": "2026-05-21T17:19:35Z", "astronomicalDuskUtc": "2026-05-21T06:06:21Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-chatham-islands-2026-06-21", "operation": "events", "tags": [ "published", "reference" ], "input": { "latitudeInDegrees": -43.95, "longitudeInDegrees": -176.55, "startUtc": "2026-06-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": "2026-06-21T19:21:00Z", "setUtc": "2026-06-21T04:15:00Z", "transitUtc": "2026-06-21T23:48:00Z", "civilDawnUtc": "2026-06-21T18:48:00Z", "civilDuskUtc": "2026-06-21T04:48:00Z", "nauticalDawnUtc": "2026-06-21T18:11:46Z", "nauticalDuskUtc": "2026-06-21T05:24:15Z", "astronomicalDawnUtc": "2026-06-21T17:36:38Z", "astronomicalDuskUtc": "2026-06-21T05:59:23Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-chatham-islands-2026-07-21", "operation": "events", "tags": [ "published", "reference" ], "input": { "latitudeInDegrees": -43.95, "longitudeInDegrees": -176.55, "startUtc": "2026-07-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": "2026-07-21T19:11:00Z", "setUtc": "2026-07-21T04:34:00Z", "transitUtc": "2026-07-21T23:53:00Z", "civilDawnUtc": "2026-07-21T18:39:00Z", "civilDuskUtc": "2026-07-21T05:05:00Z", "nauticalDawnUtc": "2026-07-21T18:04:04Z", "nauticalDuskUtc": "2026-07-21T05:40:51Z", "astronomicalDawnUtc": "2026-07-21T17:29:43Z", "astronomicalDuskUtc": "2026-07-21T06:15:16Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-chatham-islands-2026-08-21", "operation": "events", "tags": [ "published", "reference" ], "input": { 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"nauticalDawnUtc": "2026-09-21T16:34:08Z", "nauticalDuskUtc": "2026-09-21T06:43:48Z", "astronomicalDawnUtc": "2026-09-21T15:59:46Z", "astronomicalDuskUtc": "2026-09-21T07:18:12Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-chatham-islands-2026-10-21", "operation": "events", "tags": [ "published", "reference" ], "input": { "latitudeInDegrees": -43.95, "longitudeInDegrees": -176.55, "startUtc": "2026-10-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": "2026-10-21T16:43:00Z", "setUtc": "2026-10-21T06:18:00Z", "transitUtc": "2026-10-21T23:31:00Z", "civilDawnUtc": "2026-10-21T16:13:00Z", "civilDuskUtc": "2026-10-21T06:48:00Z", "nauticalDawnUtc": "2026-10-21T15:36:22Z", "nauticalDuskUtc": "2026-10-21T07:24:43Z", "astronomicalDawnUtc": "2026-10-21T14:57:04Z", "astronomicalDuskUtc": "2026-10-21T08:04:02Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-chatham-islands-2026-11-21", "operation": "events", "tags": [ "published", 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"2026-12-21T08:05:00Z", "nauticalDawnUtc": "2026-12-21T14:35:54Z", "nauticalDuskUtc": "2026-12-21T08:52:37Z", "astronomicalDawnUtc": "2026-12-21T13:34:58Z", "astronomicalDuskUtc": "2026-12-21T09:53:33Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-date-line-north-2026-01-21", "operation": "events", "tags": [ "published", "reference" ], "input": { "latitudeInDegrees": 52.0, "longitudeInDegrees": 179.9, "startUtc": "2026-01-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": "2026-01-21T19:55:00Z", "setUtc": "2026-01-21T04:28:00Z", "transitUtc": "2026-01-21T00:12:00Z", "civilDawnUtc": "2026-01-21T19:17:00Z", "civilDuskUtc": "2026-01-21T05:06:00Z", "nauticalDawnUtc": "2026-01-21T18:35:02Z", "nauticalDuskUtc": "2026-01-21T05:47:43Z", "astronomicalDawnUtc": "2026-01-21T17:55:00Z", "astronomicalDuskUtc": "2026-01-21T06:27:50Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-date-line-north-2026-02-21", "operation": "events", "tags": [ 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"2026-03-21T06:48:00Z", "nauticalDawnUtc": "2026-03-21T16:46:13Z", "nauticalDuskUtc": "2026-03-21T07:28:02Z", "astronomicalDawnUtc": "2026-03-21T16:04:31Z", "astronomicalDuskUtc": "2026-03-21T08:09:47Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-date-line-north-2026-04-21", "operation": "events", "tags": [ "published", "reference" ], "input": { "latitudeInDegrees": 52.0, "longitudeInDegrees": 179.9, "startUtc": "2026-04-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": "2026-04-21T16:50:00Z", "setUtc": "2026-04-21T07:07:00Z", "civilDawnUtc": "2026-04-21T16:13:00Z", "civilDuskUtc": "2026-04-21T07:44:00Z", "nauticalDawnUtc": "2026-04-21T15:26:32Z", "nauticalDuskUtc": "2026-04-21T08:30:56Z", "astronomicalDawnUtc": "2026-04-21T14:32:10Z", "astronomicalDuskUtc": "2026-04-21T09:25:20Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-date-line-north-2026-05-21", "operation": "events", "tags": [ "published", "reference" ], "input": 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"windowInHours": 24 }, "expected": { "riseUtc": "2026-08-21T16:55:00Z", "setUtc": "2026-08-21T07:13:00Z", "transitUtc": "2026-08-21T00:04:00Z", "civilDawnUtc": "2026-08-21T16:18:00Z", "civilDuskUtc": "2026-08-21T07:50:00Z", "nauticalDawnUtc": "2026-08-21T15:31:22Z", "nauticalDuskUtc": "2026-08-21T08:36:27Z", "astronomicalDawnUtc": "2026-08-21T14:36:52Z", "astronomicalDuskUtc": "2026-08-21T09:30:55Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-date-line-north-2026-09-21", "operation": "events", "tags": [ "published", "reference" ], "input": { "latitudeInDegrees": 52.0, "longitudeInDegrees": 179.9, "startUtc": "2026-09-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": "2026-09-21T17:46:00Z", "setUtc": "2026-09-21T06:02:00Z", "transitUtc": "2026-09-21T23:53:00Z", "civilDawnUtc": "2026-09-21T17:12:00Z", "civilDuskUtc": "2026-09-21T06:36:00Z", "nauticalDawnUtc": "2026-09-21T16:31:41Z", "nauticalDuskUtc": "2026-09-21T07:16:06Z", "astronomicalDawnUtc": "2026-09-21T15:49:49Z", "astronomicalDuskUtc": "2026-09-21T07:57:54Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-date-line-north-2026-10-21", "operation": "events", "tags": [ "published", "reference" ], "input": { "latitudeInDegrees": 52.0, "longitudeInDegrees": 179.9, "startUtc": "2026-10-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": "2026-10-21T18:36:00Z", "setUtc": "2026-10-21T04:55:00Z", "transitUtc": "2026-10-21T23:45:00Z", "civilDawnUtc": "2026-10-21T18:02:00Z", "civilDuskUtc": "2026-10-21T05:29:00Z", "nauticalDawnUtc": "2026-10-21T17:22:33Z", "nauticalDuskUtc": "2026-10-21T06:08:22Z", "astronomicalDawnUtc": "2026-10-21T16:43:29Z", "astronomicalDuskUtc": "2026-10-21T06:47:20Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-date-line-north-2026-11-21", "operation": "events", "tags": [ "published", "reference" ], "input": { "latitudeInDegrees": 52.0, "longitudeInDegrees": 179.9, "startUtc": "2026-11-21T00:00:00Z", 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"astronomicalDuskUtc": "2026-12-21T05:56:32Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-date-line-west-2026-01-21", "operation": "events", "tags": [ "published", "reference" ], "input": { "latitudeInDegrees": 52.0, "longitudeInDegrees": -179.9, "startUtc": "2026-01-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": "2026-01-21T19:54:00Z", "setUtc": "2026-01-21T04:27:00Z", "transitUtc": "2026-01-21T00:11:00Z", "civilDawnUtc": "2026-01-21T19:16:00Z", "civilDuskUtc": "2026-01-21T05:05:00Z", "nauticalDawnUtc": "2026-01-21T18:34:14Z", "nauticalDuskUtc": "2026-01-21T05:46:55Z", "astronomicalDawnUtc": "2026-01-21T17:54:12Z", "astronomicalDuskUtc": "2026-01-21T06:27:02Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-date-line-west-2026-02-21", "operation": "events", "tags": [ "published", "reference" ], "input": { "latitudeInDegrees": 52.0, "longitudeInDegrees": -179.9, "startUtc": "2026-02-21T00:00:00Z", "windowInHours": 24 }, 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"tags": [ "published", "reference", "polar" ], "input": { "latitudeInDegrees": 66.5634, "longitudeInDegrees": 25.8, "startUtc": "2026-09-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": "2026-09-21T03:55:00Z", "setUtc": "2026-09-21T16:23:00Z", "transitUtc": "2026-09-21T10:10:00Z", "civilDawnUtc": "2026-09-21T03:02:00Z", "civilDuskUtc": "2026-09-21T17:15:00Z", "nauticalDawnUtc": "2026-09-21T01:55:48Z", "nauticalDuskUtc": "2026-09-21T18:21:05Z", "astronomicalDawnUtc": "2026-09-21T00:34:29Z", "astronomicalDuskUtc": "2026-09-21T19:40:32Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-arctic-circle-2026-10-21", "operation": "events", "tags": [ "published", "reference", "polar" ], "input": { "latitudeInDegrees": 66.5634, "longitudeInDegrees": 25.8, "startUtc": "2026-10-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": "2026-10-21T05:36:00Z", "setUtc": "2026-10-21T14:26:00Z", "transitUtc": "2026-10-21T10:01:00Z", "civilDawnUtc": "2026-10-21T04:40:00Z", "civilDuskUtc": "2026-10-21T15:21:00Z", "nauticalDawnUtc": "2026-10-21T03:39:15Z", "nauticalDuskUtc": "2026-10-21T16:21:55Z", "astronomicalDawnUtc": "2026-10-21T02:38:02Z", "astronomicalDuskUtc": "2026-10-21T17:22:46Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-arctic-circle-2026-11-21", "operation": "events", "tags": [ "published", "reference", "polar" ], "input": { "latitudeInDegrees": 66.5634, "longitudeInDegrees": 25.8, "startUtc": "2026-11-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": "2026-11-21T07:34:00Z", "setUtc": "2026-11-21T12:30:00Z", "transitUtc": "2026-11-21T10:03:00Z", "civilDawnUtc": "2026-11-21T06:18:00Z", "civilDuskUtc": "2026-11-21T13:47:00Z", "nauticalDawnUtc": "2026-11-21T05:07:34Z", "nauticalDuskUtc": "2026-11-21T14:56:49Z", "astronomicalDawnUtc": "2026-11-21T04:04:38Z", "astronomicalDuskUtc": "2026-11-21T15:59:39Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "usno-events-arctic-circle-2026-12-21", "operation": "events", "tags": [ "published", "reference", "polar" ], "input": { "latitudeInDegrees": 66.5634, "longitudeInDegrees": 25.8, "startUtc": "2026-12-21T00:00:00Z", "windowInHours": 24 }, "expected": { "riseUtc": "2026-12-21T09:10:00Z", "setUtc": "2026-12-21T11:20:00Z", "transitUtc": "2026-12-21T10:15:00Z", "civilDawnUtc": "2026-12-21T07:17:00Z", "civilDuskUtc": "2026-12-21T13:13:00Z", "nauticalDawnUtc": "2026-12-21T05:56:42Z", "nauticalDuskUtc": "2026-12-21T14:32:57Z", "astronomicalDawnUtc": "2026-12-21T04:49:59Z", "astronomicalDuskUtc": "2026-12-21T15:39:40Z", "isAlwaysUp": false, "isAlwaysDown": false } }, { "id": "skyfield-position-below-horizon", "operation": "position", "tags": [ "reference", "edge" ], "note": "USNO lists the sun only when it's up; below the horizon Skyfield answers.", "input": { "latitudeInDegrees": 49.2827, "longitudeInDegrees": -123.1207, "instantUtc": "2026-09-29T08:00:00Z" }, "expected": { "azimuthInDegrees": 359.024459, "altitudeInDegrees": -43.177735 } }, { "id": "usno-position-noon-equator", "operation": "position", "tags": [ "published", "edge" ], "input": { "latitudeInDegrees": 0.0, "longitudeInDegrees": 0.0, "instantUtc": "2026-03-20T12:00:00Z" }, "expected": { "azimuthInDegrees": 91.400374, "altitudeInDegrees": 88.140231 } }, { "id": "usno-position-midnight-sun", "operation": "position", "tags": [ "published", "edge" ], "note": "Midnight sun, low in the north.", "input": { "latitudeInDegrees": 78.2232, "longitudeInDegrees": 15.6267, "instantUtc": "2026-06-21T23:00:00Z" }, "expected": { "azimuthInDegrees": 0.13797, "altitudeInDegrees": 11.659875 } }, { "id": "usno-position-polar-night", "operation": "position", "tags": [ "published", "edge" ], "input": { "latitudeInDegrees": -77.8419, "longitudeInDegrees": 166.6863, "instantUtc": "2026-06-21T00:00:00Z" }, "expected": { "azimuthInDegrees": 12.854672, "altitudeInDegrees": -11.602709 } }, { "id": "usno-position-random-1", "operation": "position", "tags": [ "published" ], "input": { "latitudeInDegrees": 12.4327, "longitudeInDegrees": -83.8316, "instantUtc": "2026-06-29T19:32:28Z" }, "expected": { "azimuthInDegrees": 295.713377, "altitudeInDegrees": 60.978212 } }, { "id": "skyfield-position-random-2", "operation": "position", "tags": [ "reference" ], "input": { "latitudeInDegrees": 44.7915, "longitudeInDegrees": -177.6834, "instantUtc": "2026-03-14T06:59:48Z" }, "expected": { "azimuthInDegrees": 278.879359, "altitudeInDegrees": -12.34814 } }, { "id": "usno-position-random-3", "operation": "position", "tags": [ "published" ], "input": { "latitudeInDegrees": -3.9528, "longitudeInDegrees": 37.6916, "instantUtc": "2026-07-15T06:16:07Z" }, "expected": { "azimuthInDegrees": 60.176377, "altitudeInDegrees": 35.035809 } }, { "id": "skyfield-position-random-4", "operation": "position", "tags": [ "reference" ], "input": { "latitudeInDegrees": 5.9197, "longitudeInDegrees": 41.994, "instantUtc": "2026-05-10T17:19:45Z" }, "expected": { "azimuthInDegrees": 294.020441, "altitudeInDegrees": -28.832936 } }, { "id": "usno-position-random-5", "operation": "position", "tags": [ "published" ], "input": { "latitudeInDegrees": 25.7963, "longitudeInDegrees": -119.0109, "instantUtc": "2026-01-16T21:10:34Z" }, "expected": { "azimuthInDegrees": 200.115799, "altitudeInDegrees": 40.828665 } }, { "id": "usno-position-random-6", "operation": "position", "tags": [ "published" ], "input": { "latitudeInDegrees": 61.2696, "longitudeInDegrees": -27.8688, "instantUtc": "2026-06-25T13:08:25Z" }, "expected": { "azimuthInDegrees": 163.07661, "altitudeInDegrees": 51.297572 } }, { "id": "skyfield-position-random-7", "operation": "position", "tags": [ "reference" ], "input": { "latitudeInDegrees": -30.0193, "longitudeInDegrees": -140.0589, "instantUtc": "2026-03-07T09:51:45Z" }, "expected": { "azimuthInDegrees": 171.191837, "altitudeInDegrees": -54.440563 } }, { "id": "skyfield-position-random-8", "operation": "position", "tags": [ "reference" ], "input": { "latitudeInDegrees": 45.6249, "longitudeInDegrees": 176.7541, "instantUtc": "2026-07-16T14:46:10Z" }, "expected": { "azimuthInDegrees": 35.307089, "altitudeInDegrees": -15.219214 } }, { "id": "usno-position-random-9", "operation": "position", "tags": [ "published" ], "input": { "latitudeInDegrees": 31.5957, "longitudeInDegrees": -41.8807, "instantUtc": "2026-01-25T14:15:20Z" }, "expected": { "azimuthInDegrees": 166.520081, "altitudeInDegrees": 38.422087 } }, { "id": "skyfield-position-random-10", "operation": "position", "tags": [ "reference" ], "input": { "latitudeInDegrees": 48.2241, "longitudeInDegrees": 150.824, "instantUtc": "2026-10-17T18:06:41Z" }, "expected": { "azimuthInDegrees": 78.242038, "altitudeInDegrees": -22.83362 } }, { "id": "skyfield-position-random-11", "operation": "position", "tags": [ "reference" ], "input": { "latitudeInDegrees": 19.3742, "longitudeInDegrees": 81.2543, "instantUtc": "2026-03-21T14:22:00Z" }, "expected": { "azimuthInDegrees": 279.178971, "altitudeInDegrees": -23.335403 } }, { "id": "skyfield-position-random-12", "operation": "position", "tags": [ "reference" ], "input": { "latitudeInDegrees": 48.6239, "longitudeInDegrees": 98.1289, "instantUtc": "2026-06-13T19:02:42Z" }, "expected": { "azimuthInDegrees": 22.551342, "altitudeInDegrees": -15.05657 } }, { "id": "usno-position-random-13", "operation": "position", "tags": [ "published" ], "input": { "latitudeInDegrees": -33.6927, "longitudeInDegrees": -78.7736, "instantUtc": "2026-12-20T22:40:14Z" }, "expected": { "azimuthInDegrees": 254.105339, "altitudeInDegrees": 19.208589 } }, { "id": "usno-position-random-14", "operation": "position", "tags": [ "published" ], "input": { "latitudeInDegrees": -62.7087, "longitudeInDegrees": 75.1683, "instantUtc": "2026-11-11T09:11:11Z" }, "expected": { "azimuthInDegrees": 313.259403, "altitudeInDegrees": 38.040109 } }, { "id": "usno-position-random-15", "operation": "position", "tags": [ "published" ], "input": { "latitudeInDegrees": 46.8861, "longitudeInDegrees": -160.2758, "instantUtc": "2026-01-03T01:08:05Z" }, "expected": { "azimuthInDegrees": 213.5081, "altitudeInDegrees": 13.201436 } }, { "id": "usno-position-random-16", "operation": "position", "tags": [ "published" ], "input": { "latitudeInDegrees": 41.57, "longitudeInDegrees": -129.9086, "instantUtc": "2026-05-28T02:49:29Z" }, "expected": { "azimuthInDegrees": 288.309431, "altitudeInDegrees": 11.788637 } }, { "id": "usno-position-random-17", "operation": "position", "tags": [ "published" ], "input": { "latitudeInDegrees": -8.2258, "longitudeInDegrees": 146.3078, "instantUtc": "2026-04-02T22:30:51Z" }, "expected": { "azimuthInDegrees": 78.621406, "altitudeInDegrees": 31.752544 } }, { "id": "skyfield-position-random-18", "operation": "position", "tags": [ "reference" ], "input": { "latitudeInDegrees": 64.7226, "longitudeInDegrees": -178.6051, "instantUtc": "2026-02-13T12:20:48Z" }, "expected": { "azimuthInDegrees": 3.804207, "altitudeInDegrees": -38.490592 } }, { "id": "usno-position-random-19", "operation": "position", "tags": [ "published" ], "input": { "latitudeInDegrees": 8.6032, "longitudeInDegrees": 142.3092, "instantUtc": "2026-10-24T20:22:51Z" }, "expected": { "azimuthInDegrees": 102.134505, "altitudeInDegrees": 0.139269 } }, { "id": "usno-position-random-20", "operation": "position", "tags": [ "published" ], "input": { "latitudeInDegrees": -18.8579, "longitudeInDegrees": 141.2911, "instantUtc": "2026-03-20T20:35:34Z" }, "expected": { "azimuthInDegrees": 90.44248, "altitudeInDegrees": -1.59255 } }, { "id": "usno-position-random-21", "operation": "position", "tags": [ "published" ], "input": { "latitudeInDegrees": 4.334, "longitudeInDegrees": -173.7127, "instantUtc": "2026-02-21T17:21:33Z" }, "expected": { "azimuthInDegrees": 99.918974, "altitudeInDegrees": -7.366018 } }, { "id": "skyfield-position-random-22", "operation": "position", "tags": [ "reference" ], "input": { "latitudeInDegrees": 7.973, "longitudeInDegrees": 13.5316, "instantUtc": "2026-02-02T22:44:02Z" }, "expected": { "azimuthInDegrees": 224.336045, "altitudeInDegrees": -77.767823 } }, { "id": "skyfield-position-random-23", "operation": "position", "tags": [ "reference" ], "input": { "latitudeInDegrees": -8.7347, "longitudeInDegrees": -36.6715, "instantUtc": "2026-03-18T23:07:44Z" }, "expected": { "azimuthInDegrees": 262.353872, "altitudeInDegrees": -37.641577 } }, { "id": "usno-position-random-24", "operation": "position", "tags": [ "published" ], "input": { "latitudeInDegrees": 30.3921, "longitudeInDegrees": 72.3052, "instantUtc": "2026-09-06T01:16:44Z" }, "expected": { "azimuthInDegrees": 85.325538, "altitudeInDegrees": 4.877251 } }, { "id": "usno-position-random-25", "operation": "position", "tags": [ "published" ], "input": { "latitudeInDegrees": -38.8657, "longitudeInDegrees": 39.1998, "instantUtc": "2026-02-26T10:49:38Z" }, "expected": { "azimuthInDegrees": 326.529277, "altitudeInDegrees": 55.547331 } }, { "id": "usno-position-random-26", "operation": "position", "tags": [ "published" ], "input": { "latitudeInDegrees": -59.9277, "longitudeInDegrees": 19.8219, "instantUtc": "2026-01-17T00:00:45Z" }, "expected": { "azimuthInDegrees": 163.474876, "altitudeInDegrees": -8.028936 } }, { "id": "usno-position-random-27", "operation": "position", "tags": [ "published" ], "input": { "latitudeInDegrees": 42.5095, "longitudeInDegrees": 88.2539, "instantUtc": "2026-08-24T11:52:43Z" }, "expected": { "azimuthInDegrees": 275.393496, "altitudeInDegrees": 10.451762 } }, { "id": "usno-position-random-28", "operation": "position", "tags": [ "published" ], "input": { "latitudeInDegrees": 77.7068, "longitudeInDegrees": 179.2671, "instantUtc": "2026-10-14T04:14:30Z" }, "expected": { "azimuthInDegrees": 245.265375, "altitudeInDegrees": -3.083545 } }, { "id": "skyfield-position-random-29", "operation": "position", "tags": [ "reference" ], "input": { "latitudeInDegrees": 45.1284, "longitudeInDegrees": -35.1477, "instantUtc": "2026-02-17T02:55:47Z" }, "expected": { "azimuthInDegrees": 9.448714, "altitudeInDegrees": -56.578086 } }, { "id": "skyfield-position-random-30", "operation": "position", "tags": [ "reference" ], "input": { "latitudeInDegrees": -30.1762, "longitudeInDegrees": 40.0059, "instantUtc": "2026-12-18T21:51:21Z" }, "expected": { "azimuthInDegrees": 170.207099, "altitudeInDegrees": -35.783052 } }, { "id": "skyfield-position-random-31", "operation": "position", "tags": [ "reference" ], "input": { "latitudeInDegrees": 26.7555, "longitudeInDegrees": 124.4397, "instantUtc": "2026-01-17T17:04:32Z" }, "expected": { "azimuthInDegrees": 73.504669, "altitudeInDegrees": -72.41041 } }, { "id": "skyfield-position-random-32", "operation": "position", "tags": [ "reference" ], "input": { "latitudeInDegrees": 9.8799, "longitudeInDegrees": 98.865, "instantUtc": "2026-07-22T17:56:30Z" }, "expected": { "azimuthInDegrees": 11.763025, "altitudeInDegrees": -59.315665 } }, { "id": 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"instantUtc": "2026-10-17T14:25:16Z" }, "expected": { "azimuthInDegrees": 212.027334, "altitudeInDegrees": -6.988382 } }, { "id": "skyfield-position-random-37", "operation": "position", "tags": [ "reference" ], "input": { "latitudeInDegrees": -82.8002, "longitudeInDegrees": -139.7853, "instantUtc": "2026-05-08T15:49:09Z" }, "expected": { "azimuthInDegrees": 79.490146, "altitudeInDegrees": -16.029912 } }, { "id": "skyfield-position-random-38", "operation": "position", "tags": [ "reference" ], "input": { "latitudeInDegrees": -6.1075, "longitudeInDegrees": -63.1046, "instantUtc": "2026-03-28T02:26:55Z" }, "expected": { "azimuthInDegrees": 264.701947, "altitudeInDegrees": -62.247726 } }, { "id": "usno-position-random-39", "operation": "position", "tags": [ "published" ], "input": { "latitudeInDegrees": -21.5524, "longitudeInDegrees": -77.4407, "instantUtc": "2026-02-04T11:49:49Z" }, "expected": { "azimuthInDegrees": 102.88475, "altitudeInDegrees": 11.768692 } }, { "id": "usno-position-random-40", "operation": "position", "tags": [ "published" ], "input": { "latitudeInDegrees": 32.8934, "longitudeInDegrees": -170.8592, "instantUtc": "2026-07-20T23:29:19Z" }, "expected": { "azimuthInDegrees": 179.393909, "altitudeInDegrees": 77.614312 } }, { "id": "invalid-events-latitude-91", "operation": "events", "tags": [ "invalid" ], "input": { "latitudeInDegrees": 91, "longitudeInDegrees": 0, "startUtc": "2026-01-01T00:00:00Z", "windowInHours": 24 }, "expected": { "error": "outOfRange" } }, { "id": "invalid-events-window-0", "operation": "events", "tags": [ "invalid" ], "input": { "latitudeInDegrees": 0, "longitudeInDegrees": 0, "startUtc": "2026-01-01T00:00:00Z", "windowInHours": 0 }, "expected": { "error": "outOfRange" } }, { "id": "invalid-position-not-an-instant", "operation": "position", "tags": [ "invalid" ], "input": { "latitudeInDegrees": 0, "longitudeInDegrees": 0, "instantUtc": "noon" }, "expected": { "error": "invalidInput" } } ] }