Orbital elements of USA 99
| Launched | 6 February 1994 |
| Flight ended | – |
| Launch site | Air Force Eastern Test Range, Florida, USA |
| Owner | United States |
| NORAD ID | 22988 |
| Alternative names |
MILSTAR-1 1 |
| 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 14 18:56 | 2025 Dec 13 14:43:58 | 17.3417 | 0.00037 | 1.9805 | 260.3212 | 283.5281 | 1.00273 | 3.243 |
| 2025 Dec 13 18:56 | 2025 Dec 13 02:44:55 | 17.3411 | 0.00037 | 1.9808 | 259.6755 | 283.5281 | 1.00273 | 3.243 |
| 2025 Dec 12 18:57 | 2025 Dec 12 02:46:48 | 17.3397 | 0.00037 | 1.9816 | 258.3990 | 283.5281 | 1.00273 | 3.243 |
| 2025 Dec 11 18:56 | 2025 Dec 11 02:48:38 | 17.3383 | 0.00038 | 1.9823 | 256.9225 | 283.5281 | 1.00273 | 3.243 |
| 2025 Dec 10 18:56 | 2025 Dec 10 02:10:38 | 17.3368 | 0.00038 | 1.9830 | 255.2046 | 283.5281 | 1.00273 | 3.243 |
| 2025 Dec 09 18:56 | 2025 Dec 09 12:51:20 | 17.3359 | 0.00038 | 1.9834 | 254.1668 | 283.5281 | 1.00273 | 3.243 |
| 2025 Dec 08 18:56 | 2025 Dec 08 02:54:14 | 17.3336 | 0.00038 | 1.9844 | 251.4339 | 283.5281 | 1.00273 | 3.243 |
| 2025 Dec 07 18:56 | 2025 Dec 07 02:48:26 | 17.3320 | 0.00038 | 1.9851 | 249.4997 | 283.5281 | 1.00273 | 3.243 |
| 2025 Dec 06 18:56 | 2025 Dec 06 05:21:39 | 17.3305 | 0.00038 | 1.9857 | 247.7657 | 283.5281 | 1.00273 | 3.243 |
| 2025 Dec 05 18:57 | 2025 Dec 05 02:59:50 | 17.3287 | 0.00038 | 1.9864 | 245.7048 | 283.5281 | 1.00273 | 3.243 |
| 2025 Dec 04 18:57 | 2025 Dec 04 03:14:38 | 17.3271 | 0.00038 | 1.9871 | 243.8198 | 283.5281 | 1.00273 | 3.243 |
| 2025 Dec 03 18:56 | 2025 Dec 03 03:03:21 | 17.3254 | 0.00037 | 1.9878 | 242.0244 | 283.5281 | 1.00273 | 3.243 |
| 2025 Dec 02 18:56 | 2025 Dec 02 08:18:54 | 17.3241 | 0.00036 | 1.9884 | 240.8141 | 283.5281 | 1.00273 | 3.243 |
| 2025 Nov 30 18:57 | 2025 Nov 30 03:08:35 | 17.3206 | 0.00034 | 1.9899 | 239.7827 | 283.5281 | 1.00273 | 3.243 |
| 2025 Nov 29 18:56 | 2025 Nov 29 03:10:20 | 17.3253 | 0.00032 | 1.9905 | 242.4112 | 283.5281 | 1.00273 | 3.243 |
| 2025 Nov 28 18:57 | 2025 Nov 27 15:12:53 | 17.3168 | 0.00034 | 1.9916 | 242.3256 | 283.5281 | 1.00273 | 3.243 |
| 2025 Nov 27 18:57 | 2025 Nov 26 15:14:38 | 17.3153 | 0.00033 | 1.9923 | 242.1964 | 283.5281 | 1.00273 | 3.243 |
| 2025 Nov 26 18:57 | 2025 Nov 26 03:15:36 | 17.3146 | 0.00033 | 1.9927 | 242.1736 | 283.5281 | 1.00273 | 3.243 |
| 2025 Nov 25 18:57 | 2025 Nov 25 03:17:24 | 17.3132 | 0.00032 | 1.9934 | 242.2077 | 283.5281 | 1.00273 | 3.243 |
| 2025 Nov 24 18:56 | 2025 Nov 24 03:42:38 | 17.3119 | 0.00031 | 1.9941 | 242.4294 | 283.5281 | 1.00273 | 3.243 |
| 2025 Nov 23 18:57 | 2025 Nov 23 04:10:38 | 17.3106 | 0.00031 | 1.9948 | 242.6497 | 283.5281 | 1.00273 | 3.243 |
| 2025 Nov 21 18:57 | 2025 Nov 20 15:25:14 | 17.3073 | 0.00030 | 1.9967 | 242.9850 | 283.5281 | 1.00273 | 3.243 |
| 2025 Nov 20 18:56 | 2025 Nov 20 03:26:05 | 17.3066 | 0.00030 | 1.9970 | 242.9349 | 283.5281 | 1.00273 | 3.243 |
| 2025 Nov 18 18:57 | 2025 Nov 18 06:54:36 | 17.3042 | 0.00031 | 1.9984 | 242.5885 | 283.5281 | 1.00273 | 3.243 |