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 |
| 2026 May 18 17:57 | 2026 May 18 12:42:38 | 2.1882 | 0.00020 | 2.8308 | 6.3681 | 38.9494 | 1.00272 | – |
| 2026 May 17 17:57 | 2026 May 17 07:37:19 | 2.1858 | 0.00020 | 2.8276 | 5.6707 | 38.9494 | 1.00272 | – |
| 2026 May 16 17:56 | 2026 May 16 05:36:38 | 2.1834 | 0.00020 | 2.8251 | 4.1583 | 38.9494 | 1.00272 | – |
| 2026 May 15 17:57 | 2026 May 15 05:59:50 | 2.1814 | 0.00021 | 2.8229 | 4.9465 | 38.9494 | 1.00272 | – |
| 2026 May 14 17:58 | 2026 May 14 06:02:32 | 2.1793 | 0.00021 | 2.8206 | 4.8910 | 38.9494 | 1.00272 | – |
| 2026 May 13 17:58 | 2026 May 13 06:05:10 | 2.1773 | 0.00022 | 2.8185 | 5.1237 | 38.9494 | 1.00272 | – |
| 2026 May 12 17:58 | 2026 May 12 04:25:05 | 2.1750 | 0.00022 | 2.8166 | 4.2304 | 38.9494 | 1.00272 | – |
| 2026 May 11 17:56 | 2026 May 11 07:53:07 | 2.1736 | 0.00023 | 2.8148 | 5.2306 | 38.9494 | 1.00272 | – |
| 2026 May 10 17:57 | 2026 May 10 06:13:00 | 2.1715 | 0.00024 | 2.8127 | 5.2777 | 38.9494 | 1.00272 | – |
| 2026 May 09 17:57 | 2026 May 09 07:58:22 | 2.1700 | 0.00024 | 2.8109 | 353.4686 | 38.9494 | 1.00272 | – |
| 2026 May 08 17:57 | 2026 May 08 03:12:38 | 2.1677 | 0.00024 | 2.8091 | 3.8858 | 38.9494 | 1.00272 | – |
| 2026 May 07 17:58 | 2026 May 07 04:38:14 | 2.1661 | 0.00025 | 2.8072 | 2.9192 | 38.9494 | 1.00272 | – |
| 2026 May 06 17:57 | 2026 May 06 08:06:07 | 2.1648 | 0.00025 | 2.8054 | 2.6013 | 38.9494 | 1.00272 | – |
| 2026 May 05 17:57 | 2026 May 05 08:08:35 | 2.1631 | 0.00025 | 2.8038 | 2.5815 | 38.9494 | 1.00272 | – |
| 2026 May 04 17:57 | 2026 May 04 06:28:50 | 2.1612 | 0.00025 | 2.8019 | 0.0054 | 38.9494 | 1.00272 | – |
| 2026 May 03 17:57 | 2026 May 03 06:31:24 | 2.1596 | 0.00025 | 2.8001 | 359.0271 | 38.9494 | 1.00272 | – |
| 2026 May 02 17:57 | 2026 May 01 01:28:23 | 2.1559 | 0.00025 | 2.7968 | 354.6480 | 38.9494 | 1.00272 | – |
| 2026 May 01 17:56 | 2026 May 01 01:28:23 | 2.1559 | 0.00025 | 2.7968 | 354.6480 | 38.9494 | 1.00272 | – |
| 2026 Apr 30 17:56 | 2026 Apr 30 11:47:06 | 2.1550 | 0.00025 | 2.7956 | 354.2576 | 38.9494 | 1.00272 | – |
| 2026 Apr 29 17:57 | 2026 Apr 29 11:49:35 | 2.1533 | 0.00024 | 2.7937 | 352.1754 | 38.9494 | 1.00272 | – |
| 2026 Apr 28 17:56 | 2026 Apr 28 11:52:09 | 2.1516 | 0.00024 | 2.7917 | 350.7805 | 38.9494 | 1.00272 | – |
| 2026 Apr 27 17:58 | 2026 Apr 27 07:37:38 | 2.1494 | 0.00023 | 2.7890 | 347.0847 | 38.9494 | 1.00272 | – |
| 2026 Apr 26 17:58 | 2026 Apr 26 11:57:19 | 2.1481 | 0.00023 | 2.7876 | 346.1758 | 38.9494 | 1.00272 | – |
| 2026 Apr 25 17:58 | 2026 Apr 25 11:59:54 | 2.1462 | 0.00023 | 2.7854 | 344.4564 | 38.9494 | 1.00272 | – |
| 2026 Apr 24 17:59 | 2026 Apr 24 12:02:24 | 2.1444 | 0.00022 | 2.7830 | 342.4429 | 38.9494 | 1.00272 | – |
| 2026 Apr 23 17:57 | 2026 Apr 23 04:40:38 | 2.1415 | 0.00022 | 2.7798 | 342.4288 | 38.9494 | 1.00272 | – |
| 2026 Apr 22 17:57 | 2026 Apr 22 04:47:38 | 2.1394 | 0.00022 | 2.7775 | 338.4302 | 38.9494 | 1.00272 | – |
| 2026 Apr 21 17:57 | 2026 Apr 21 12:10:05 | 2.1382 | 0.00022 | 2.7759 | 338.3228 | 38.9494 | 1.00272 | – |