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 Feb 04 18:57 | 2026 Feb 04 08:20:42 | 1.9986 | 0.00024 | 2.6057 | 277.1084 | 324.3652 | 1.00272 | – |
| 2026 Feb 03 18:56 | 2026 Feb 03 08:22:44 | 1.9968 | 0.00024 | 2.6031 | 274.5451 | 324.3652 | 1.00272 | – |
| 2026 Feb 02 18:56 | 2026 Feb 02 08:24:54 | 1.9950 | 0.00025 | 2.6004 | 272.9912 | 324.3652 | 1.00272 | – |
| 2026 Feb 01 18:56 | 2026 Feb 01 08:26:55 | 1.9930 | 0.00025 | 2.5977 | 270.4279 | 324.3652 | 1.00272 | – |
| 2026 Jan 31 18:56 | 2026 Jan 31 11:54:30 | 1.9914 | 0.00025 | 2.5949 | 269.2360 | 324.3652 | 1.00272 | – |
| 2026 Jan 30 18:57 | 2026 Jan 30 06:48:30 | 1.9891 | 0.00025 | 2.5918 | 266.3362 | 324.3652 | 1.00272 | – |
| 2026 Jan 29 18:56 | 2026 Jan 29 08:33:06 | 1.9872 | 0.00025 | 2.5892 | 265.5773 | 324.3652 | 1.00272 | – |
| 2026 Jan 28 18:56 | 2026 Jan 27 08:37:07 | 1.9833 | 0.00025 | 2.5838 | 263.7326 | 324.3652 | 1.00272 | – |
| 2026 Jan 27 18:56 | 2026 Jan 27 08:37:07 | 1.9833 | 0.00025 | 2.5838 | 263.7326 | 324.3652 | 1.00272 | – |
| 2026 Jan 26 18:57 | 2026 Jan 26 08:39:14 | 1.9814 | 0.00024 | 2.5812 | 263.5149 | 324.3652 | 1.00272 | – |
| 2026 Jan 25 18:57 | 2026 Jan 25 06:59:03 | 1.9795 | 0.00024 | 2.5781 | 262.4526 | 324.3652 | 1.00272 | – |
| 2026 Jan 24 18:58 | 2026 Jan 24 08:43:26 | 1.9777 | 0.00023 | 2.5757 | 263.0024 | 324.3652 | 1.00272 | – |
| 2026 Jan 22 18:56 | 2026 Jan 22 01:57:17 | 1.9737 | 0.00022 | 2.5695 | 261.9459 | 324.3652 | 1.00272 | – |
| 2026 Jan 21 18:56 | 2026 Jan 21 07:07:32 | 1.9725 | 0.00022 | 2.5681 | 262.6076 | 324.3652 | 1.00272 | – |
| 2026 Jan 20 19:06 | 2026 Jan 20 03:44:14 | 1.9706 | 0.00022 | 2.5649 | 262.2084 | 324.3652 | 1.00272 | – |
| 2026 Jan 19 18:57 | 2026 Jan 19 05:29:05 | 1.9692 | 0.00021 | 2.5628 | 262.6861 | 324.3652 | 1.00272 | – |
| 2026 Jan 18 18:57 | 2026 Jan 17 22:40:23 | 1.9669 | 0.00021 | 2.5598 | 260.9716 | 324.3652 | 1.00272 | – |
| 2026 Jan 17 18:56 | 2026 Jan 17 14:06:50 | 1.9664 | 0.00020 | 2.5586 | 261.4310 | 324.3652 | 1.00272 | – |
| 2026 Jan 16 18:57 | 2026 Jan 16 12:26:14 | 1.9647 | 0.00021 | 2.5562 | 261.1023 | 324.3652 | 1.00272 | – |
| 2026 Jan 15 18:56 | 2026 Jan 15 14:11:00 | 1.9633 | 0.00021 | 2.5538 | 261.5656 | 324.3652 | 1.00272 | – |
| 2026 Jan 13 18:56 | 2026 Jan 13 12:32:40 | 1.9600 | 0.00021 | 2.5491 | 259.4097 | 324.3652 | 1.00272 | – |
| 2026 Jan 11 18:57 | 2026 Jan 11 14:19:14 | 1.9571 | 0.00022 | 2.5444 | 257.3245 | 324.3652 | 1.00272 | – |
| 2026 Jan 10 18:57 | 2026 Jan 08 22:36:38 | 1.9528 | 0.00023 | 2.5380 | 252.6768 | 324.3652 | 1.00272 | – |
| 2026 Jan 09 18:57 | 2026 Jan 08 22:36:38 | 1.9528 | 0.00023 | 2.5380 | 252.6768 | 324.3652 | 1.00272 | – |
| 2026 Jan 08 18:56 | 2026 Jan 08 14:25:11 | 1.9523 | 0.00024 | 2.5366 | 252.2284 | 324.3652 | 1.00272 | – |