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 Jun 10 17:56 | 2026 Jun 06 12:19:05 | 63.3179 | 0.08508 | 14.6358 | 49.3056 | 317.8788 | 13.46208 | 5.243 |
| 2026 Jun 09 17:57 | 2026 Jun 06 12:19:05 | 63.3179 | 0.08508 | 14.6358 | 49.3056 | 317.8788 | 13.46208 | 5.243 |
| 2026 Jun 08 17:56 | 2026 Jun 06 12:19:05 | 63.3179 | 0.08508 | 14.6358 | 49.3056 | 317.8788 | 13.46208 | 5.243 |
| 2026 Jun 07 17:56 | 2026 Jun 06 12:19:05 | 63.3179 | 0.08508 | 14.6358 | 49.3056 | 317.8788 | 13.46208 | 5.243 |
| 2026 Jun 06 17:56 | 2026 May 31 11:54:44 | 63.3186 | 0.08505 | 15.6855 | 49.2168 | 317.8788 | 13.46208 | 5.243 |
| 2026 Jun 05 17:56 | 2026 May 31 11:54:44 | 63.3186 | 0.08505 | 15.6855 | 49.2168 | 317.8788 | 13.46208 | 5.243 |
| 2026 Jun 04 17:57 | 2026 May 31 11:54:44 | 63.3186 | 0.08505 | 15.6855 | 49.2168 | 317.8788 | 13.46208 | 5.243 |
| 2026 Jun 02 17:56 | 2026 May 31 11:54:44 | 63.3186 | 0.08505 | 15.6855 | 49.2168 | 317.8788 | 13.46208 | 5.243 |
| 2026 Jun 01 17:57 | 2026 May 31 11:54:44 | 63.3186 | 0.08505 | 15.6855 | 49.2168 | 317.8788 | 13.46208 | 5.243 |
| 2026 May 31 17:58 | 2026 May 31 11:54:44 | 63.3186 | 0.08505 | 15.6855 | 49.2168 | 317.8788 | 13.46208 | 5.243 |
| 2026 May 30 17:57 | 2026 May 26 07:06:57 | 63.3190 | 0.08502 | 16.5926 | 49.1403 | 317.8788 | 13.46208 | 5.243 |
| 2026 May 29 17:57 | 2026 May 26 07:06:57 | 63.3190 | 0.08502 | 16.5926 | 49.1403 | 317.8788 | 13.46208 | 5.243 |
| 2026 May 28 17:56 | 2026 May 26 07:06:57 | 63.3190 | 0.08502 | 16.5926 | 49.1403 | 317.8788 | 13.46208 | 5.243 |
| 2026 May 27 17:57 | 2026 May 26 07:06:57 | 63.3190 | 0.08502 | 16.5926 | 49.1403 | 317.8788 | 13.46208 | 5.243 |
| 2026 May 26 17:57 | 2026 May 26 07:06:57 | 63.3190 | 0.08502 | 16.5926 | 49.1403 | 317.8788 | 13.46208 | 5.243 |
| 2026 May 25 17:57 | 2026 May 21 02:19:05 | 63.3188 | 0.08500 | 17.4996 | 49.0668 | 317.8788 | 13.46208 | 5.243 |
| 2026 May 24 17:57 | 2026 May 21 02:19:05 | 63.3188 | 0.08500 | 17.4996 | 49.0668 | 317.8788 | 13.46208 | 5.243 |
| 2026 May 23 17:58 | 2026 May 21 02:19:05 | 63.3188 | 0.08500 | 17.4996 | 49.0668 | 317.8788 | 13.46208 | 5.243 |
| 2026 May 22 17:57 | 2026 May 21 02:19:05 | 63.3188 | 0.08500 | 17.4996 | 49.0668 | 317.8788 | 13.46208 | 5.243 |
| 2026 May 21 17:57 | 2026 May 21 02:19:05 | 63.3188 | 0.08500 | 17.4996 | 49.0668 | 317.8788 | 13.46208 | 5.243 |
| 2026 May 20 17:57 | 2026 May 16 15:20:54 | 63.3190 | 0.08498 | 18.2772 | 49.0021 | 317.8788 | 13.46208 | 5.243 |
| 2026 May 19 17:58 | 2026 May 16 15:20:54 | 63.3190 | 0.08498 | 18.2772 | 49.0021 | 317.8788 | 13.46208 | 5.243 |
| 2026 May 18 17:57 | 2026 May 16 15:20:54 | 63.3190 | 0.08498 | 18.2772 | 49.0021 | 317.8788 | 13.46208 | 5.243 |
| 2026 May 17 17:57 | 2026 May 16 15:20:54 | 63.3190 | 0.08498 | 18.2772 | 49.0021 | 317.8788 | 13.46208 | 5.243 |
| 2026 May 16 17:56 | 2026 May 16 15:20:54 | 63.3190 | 0.08498 | 18.2772 | 49.0021 | 317.8788 | 13.46208 | 5.243 |
| 2026 May 15 17:57 | 2026 May 10 04:14:28 | 63.3191 | 0.08495 | 19.4046 | 48.9094 | 317.8788 | 13.46208 | 5.243 |
| 2026 May 14 17:58 | 2026 May 10 04:14:28 | 63.3191 | 0.08495 | 19.4046 | 48.9094 | 317.8788 | 13.46208 | 5.243 |