Orbital elements of SBIRS GEO-4
| Launched | 20 January 2017 |
| Flight ended | – |
| Launch site | Air Force Eastern Test Range, Florida, USA |
| Owner | United States |
| NORAD ID | 41937 |
| Alternative names |
USA 273 |
| Date fetched |
Epoch osculation |
Inc. [°] |
Ecc. | RA asc node [hr] |
Arg Peri. [°] |
Mean anom [°] |
Mean motion [rev/day] |
Abs. mag |
| Date fetched |
Epoch osculation |
Inc. [°] |
Ecc. | RA asc node [hr] |
Arg Peri. [°] |
Mean anom [°] |
Mean motion [rev/day] |
Abs. mag |
| 2025 Sep 14 17:56 | 2025 Sep 14 05:33:38 | 1.7627 | 0.00019 | 2.1737 | 146.0914 | 279.0642 | 1.00269 | – |
| 2025 Sep 12 17:57 | 2025 Sep 11 17:38:12 | 1.7585 | 0.00088 | 2.1640 | 253.1263 | 279.0642 | 1.00269 | – |
| 2025 Sep 11 17:57 | 2025 Sep 11 05:38:55 | 1.7574 | 0.00088 | 2.1620 | 253.1904 | 279.0642 | 1.00269 | – |
| 2025 Sep 10 17:56 | 2025 Sep 10 03:57:25 | 1.7561 | 0.00020 | 2.1600 | 172.3681 | 279.0642 | 1.00269 | – |
| 2025 Sep 08 17:57 | 2025 Sep 08 05:43:18 | 1.7528 | 0.00019 | 2.1528 | 167.5145 | 279.0642 | 1.00269 | – |
| 2025 Sep 07 17:56 | 2025 Sep 07 04:01:59 | 1.7512 | 0.00019 | 2.1491 | 164.5328 | 279.0642 | 1.00269 | – |
| 2025 Sep 06 20:41 | 2025 Sep 06 05:46:09 | 1.7496 | 0.00019 | 2.1458 | 162.1620 | 279.0642 | 1.00269 | – |
| 2025 Sep 03 17:57 | 2025 Sep 03 05:50:37 | 1.7452 | 0.00017 | 2.1358 | 155.1889 | 279.0642 | 1.00269 | – |
| 2025 Sep 02 17:56 | 2025 Sep 02 04:09:14 | 1.7438 | 0.00017 | 2.1324 | 153.4707 | 279.0642 | 1.00269 | – |
| 2025 Sep 01 17:56 | 2025 Sep 01 05:53:22 | 1.7425 | 0.00017 | 2.1293 | 152.4943 | 279.0642 | 1.00269 | – |
| 2025 Aug 31 17:56 | 2025 Aug 31 05:54:44 | 1.7411 | 0.00016 | 2.1261 | 151.6983 | 279.0642 | 1.00269 | – |
| 2025 Aug 30 17:56 | 2025 Aug 30 04:13:19 | 1.7398 | 0.00016 | 2.1229 | 151.3468 | 279.0642 | 1.00269 | – |
| 2025 Aug 29 17:56 | 2025 Aug 29 05:57:28 | 1.7384 | 0.00016 | 2.1199 | 151.2758 | 279.0642 | 1.00269 | – |
| 2025 Aug 28 17:57 | 2025 Aug 27 21:02:38 | 1.7366 | 0.00016 | 2.1152 | 152.2647 | 279.0642 | 1.00269 | – |
| 2025 Aug 27 17:56 | 2025 Aug 27 06:00:12 | 1.7358 | 0.00016 | 2.1137 | 152.2867 | 279.0642 | 1.00269 | – |
| 2025 Aug 26 17:56 | 2025 Aug 25 21:27:52 | 1.7340 | 0.00015 | 2.1089 | 153.8677 | 279.0642 | 1.00269 | – |
| 2025 Aug 25 17:56 | 2025 Aug 24 21:29:12 | 1.7327 | 0.00015 | 2.1056 | 154.7178 | 279.0642 | 1.00269 | – |
| 2025 Aug 24 17:56 | 2025 Aug 23 23:03:05 | 1.7315 | 0.00015 | 2.1024 | 155.4908 | 279.0642 | 1.00269 | – |
| 2025 Aug 23 17:56 | 2025 Aug 20 19:51:53 | 1.7268 | 0.00015 | 2.0914 | 157.1098 | 279.0642 | 1.00269 | – |
| 2025 Aug 22 17:56 | 2025 Aug 20 19:51:53 | 1.7268 | 0.00015 | 2.0914 | 157.1098 | 279.0642 | 1.00269 | – |
| 2025 Aug 20 17:56 | 2025 Aug 20 06:09:48 | 1.7259 | 0.00015 | 2.0896 | 157.4298 | 279.0642 | 1.00269 | – |
| 2025 Aug 19 17:56 | 2025 Aug 18 21:37:25 | 1.7239 | 0.00015 | 2.0840 | 156.3811 | 279.0642 | 1.00269 | – |
| 2025 Aug 18 17:56 | 2025 Aug 17 20:58:38 | 1.7223 | 0.00015 | 2.0801 | 154.9526 | 279.0642 | 1.00269 | – |