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 Dec 16 18:57 | 2025 Dec 15 22:02:53 | 1.9121 | 0.00021 | 2.4700 | 229.7600 | 169.6306 | 1.00273 | – |
| 2025 Dec 15 18:58 | 2025 Dec 14 22:04:41 | 1.9106 | 0.00021 | 2.4674 | 229.5708 | 169.6306 | 1.00273 | – |
| 2025 Dec 14 18:56 | 2025 Dec 13 22:06:33 | 1.9091 | 0.00021 | 2.4649 | 228.3865 | 169.6306 | 1.00273 | – |
| 2025 Dec 13 18:56 | 2025 Dec 13 04:59:20 | 1.9080 | 0.00022 | 2.4624 | 228.2584 | 169.6306 | 1.00273 | – |
| 2025 Dec 12 18:57 | 2025 Dec 12 06:43:49 | 1.9066 | 0.00022 | 2.4599 | 228.0975 | 169.6306 | 1.00273 | – |
| 2025 Dec 11 18:56 | 2025 Dec 11 05:03:03 | 1.9048 | 0.00023 | 2.4566 | 226.0430 | 169.6306 | 1.00273 | – |
| 2025 Dec 10 18:56 | 2025 Dec 10 06:13:38 | 1.9033 | 0.00024 | 2.4537 | 225.3972 | 169.6306 | 1.00273 | – |
| 2025 Dec 09 18:56 | 2025 Dec 09 13:40:22 | 1.9019 | 0.00024 | 2.4518 | 224.7846 | 169.6306 | 1.00273 | – |
| 2025 Dec 08 18:56 | 2025 Dec 08 06:50:58 | 1.8999 | 0.00025 | 2.4475 | 223.7611 | 169.6306 | 1.00273 | – |
| 2025 Dec 07 18:56 | 2025 Dec 07 05:10:26 | 1.8979 | 0.00025 | 2.4436 | 222.8267 | 169.6306 | 1.00273 | – |
| 2025 Dec 06 18:56 | 2025 Dec 06 05:12:15 | 1.8960 | 0.00025 | 2.4403 | 220.9427 | 169.6306 | 1.00273 | – |
| 2025 Dec 05 18:57 | 2025 Dec 05 03:31:17 | 1.8939 | 0.00025 | 2.4369 | 219.6667 | 169.6306 | 1.00273 | – |
| 2025 Dec 04 18:57 | 2025 Dec 04 05:15:56 | 1.8923 | 0.00025 | 2.4336 | 217.6744 | 169.6306 | 1.00273 | – |
| 2025 Dec 03 18:56 | 2025 Dec 03 07:00:25 | 1.8907 | 0.00024 | 2.4305 | 217.0836 | 169.6306 | 1.00273 | – |
| 2025 Dec 02 18:56 | 2025 Dec 02 07:04:38 | 1.8888 | 0.00024 | 2.4272 | 217.5711 | 169.6306 | 1.00273 | – |
| 2025 Nov 30 18:57 | 2025 Nov 30 13:56:36 | 1.8852 | 0.00023 | 2.4216 | 213.8559 | 169.6306 | 1.00273 | – |
| 2025 Nov 29 18:56 | 2025 Nov 29 03:41:55 | 1.8827 | 0.00022 | 2.4171 | 211.7304 | 169.6306 | 1.00273 | – |
| 2025 Nov 28 18:57 | 2025 Nov 27 07:10:55 | 1.8799 | 0.00021 | 2.4116 | 208.6815 | 169.6306 | 1.00273 | – |
| 2025 Nov 27 18:57 | 2025 Nov 26 21:57:38 | 1.8793 | 0.00020 | 2.4108 | 208.3358 | 169.6306 | 1.00273 | – |
| 2025 Nov 26 18:57 | 2025 Nov 26 07:12:35 | 1.8783 | 0.00020 | 2.4086 | 208.2874 | 169.6306 | 1.00273 | – |
| 2025 Nov 25 18:57 | 2025 Nov 25 03:48:51 | 1.8764 | 0.00020 | 2.4053 | 207.4399 | 169.6306 | 1.00273 | – |
| 2025 Nov 24 18:56 | 2025 Nov 24 07:16:07 | 1.8753 | 0.00019 | 2.4029 | 208.0976 | 169.6306 | 1.00273 | – |
| 2025 Nov 23 18:57 | 2025 Nov 23 07:17:52 | 1.8738 | 0.00019 | 2.4001 | 206.6128 | 169.6306 | 1.00273 | – |
| 2025 Nov 21 18:57 | 2025 Nov 21 03:36:21 | 1.8704 | 0.00019 | 2.3946 | 204.1429 | 169.6306 | 1.00273 | – |
| 2025 Nov 20 18:56 | 2025 Nov 20 05:40:22 | 1.8691 | 0.00019 | 2.3919 | 205.5663 | 169.6306 | 1.00273 | – |