Orbital elements of USA 121
| Launched | 11 May 1996 |
| Flight ended | – |
| Launch site | Air Force Western Test Range, California, USA |
| Owner | United States |
| NORAD ID | 23908 |
| 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 25 17:57 | 2026 May 21 02:19:05 | 63.3188 | 0.08500 | 17.4996 | 49.0668 | 318.0840 | 13.46172 | 5.243 |
| 2026 May 24 17:57 | 2026 May 21 02:19:05 | 63.3188 | 0.08500 | 17.4996 | 49.0668 | 318.0840 | 13.46172 | 5.243 |
| 2026 May 23 17:58 | 2026 May 21 02:19:05 | 63.3188 | 0.08500 | 17.4996 | 49.0668 | 318.0840 | 13.46172 | 5.243 |
| 2026 May 22 17:57 | 2026 May 21 02:19:05 | 63.3188 | 0.08500 | 17.4996 | 49.0668 | 318.0840 | 13.46172 | 5.243 |
| 2026 May 21 17:57 | 2026 May 21 02:19:05 | 63.3188 | 0.08500 | 17.4996 | 49.0668 | 318.0840 | 13.46172 | 5.243 |
| 2026 May 20 17:57 | 2026 May 16 15:20:54 | 63.3190 | 0.08498 | 18.2772 | 49.0021 | 318.0840 | 13.46172 | 5.243 |
| 2026 May 19 17:58 | 2026 May 16 15:20:54 | 63.3190 | 0.08498 | 18.2772 | 49.0021 | 318.0840 | 13.46172 | 5.243 |
| 2026 May 18 17:57 | 2026 May 16 15:20:54 | 63.3190 | 0.08498 | 18.2772 | 49.0021 | 318.0840 | 13.46172 | 5.243 |
| 2026 May 17 17:57 | 2026 May 16 15:20:54 | 63.3190 | 0.08498 | 18.2772 | 49.0021 | 318.0840 | 13.46172 | 5.243 |
| 2026 May 16 17:56 | 2026 May 16 15:20:54 | 63.3190 | 0.08498 | 18.2772 | 49.0021 | 318.0840 | 13.46172 | 5.243 |
| 2026 May 15 17:57 | 2026 May 10 04:14:28 | 63.3191 | 0.08495 | 19.4046 | 48.9094 | 318.0840 | 13.46172 | 5.243 |
| 2026 May 14 17:58 | 2026 May 10 04:14:28 | 63.3191 | 0.08495 | 19.4046 | 48.9094 | 318.0840 | 13.46172 | 5.243 |
| 2026 May 13 17:58 | 2026 May 10 04:14:28 | 63.3191 | 0.08495 | 19.4046 | 48.9094 | 318.0840 | 13.46172 | 5.243 |
| 2026 May 12 17:58 | 2026 May 10 04:14:28 | 63.3191 | 0.08495 | 19.4046 | 48.9094 | 318.0840 | 13.46172 | 5.243 |
| 2026 May 11 17:56 | 2026 May 10 04:14:28 | 63.3191 | 0.08495 | 19.4046 | 48.9094 | 318.0840 | 13.46172 | 5.243 |
| 2026 May 10 17:57 | 2026 May 10 04:14:28 | 63.3191 | 0.08495 | 19.4046 | 48.9094 | 318.0840 | 13.46172 | 5.243 |
| 2026 May 09 17:57 | 2026 May 05 11:55:17 | 63.3198 | 0.08492 | 20.2210 | 48.8384 | 318.0840 | 13.46172 | 5.243 |
| 2026 May 08 17:57 | 2026 May 05 11:55:17 | 63.3198 | 0.08492 | 20.2210 | 48.8384 | 318.0840 | 13.46172 | 5.243 |
| 2026 May 07 17:58 | 2026 May 05 11:55:17 | 63.3198 | 0.08492 | 20.2210 | 48.8384 | 318.0840 | 13.46172 | 5.243 |
| 2026 May 06 17:57 | 2026 May 05 11:55:17 | 63.3198 | 0.08492 | 20.2210 | 48.8384 | 318.0840 | 13.46172 | 5.243 |
| 2026 May 05 17:57 | 2026 May 05 11:55:17 | 63.3198 | 0.08492 | 20.2210 | 48.8384 | 318.0840 | 13.46172 | 5.243 |
| 2026 May 04 17:57 | 2026 Apr 30 12:28:09 | 63.3201 | 0.08491 | 21.0892 | 48.7580 | 318.0840 | 13.46172 | 5.243 |
| 2026 May 03 17:57 | 2026 Apr 30 12:28:09 | 63.3201 | 0.08491 | 21.0892 | 48.7580 | 318.0840 | 13.46172 | 5.243 |
| 2026 May 02 17:57 | 2026 Apr 30 12:28:09 | 63.3201 | 0.08491 | 21.0892 | 48.7580 | 318.0840 | 13.46172 | 5.243 |
| 2026 May 01 17:56 | 2026 Apr 30 12:28:09 | 63.3201 | 0.08491 | 21.0892 | 48.7580 | 318.0840 | 13.46172 | 5.243 |
| 2026 Apr 30 17:56 | 2026 Apr 30 12:28:09 | 63.3201 | 0.08491 | 21.0892 | 48.7580 | 318.0840 | 13.46172 | 5.243 |
| 2026 Apr 29 17:57 | 2026 Apr 24 01:21:25 | 63.3206 | 0.08488 | 22.2165 | 48.6589 | 318.0840 | 13.46172 | 5.243 |
| 2026 Apr 28 17:56 | 2026 Apr 24 01:21:25 | 63.3206 | 0.08488 | 22.2165 | 48.6589 | 318.0840 | 13.46172 | 5.243 |