Orbital elements of USA 143
| Launched | 29 April 1999 |
| Flight ended | – |
| Launch site | Air Force Eastern Test Range, Florida, USA |
| Owner | United States |
| NORAD ID | 25724 |
| Alternative names |
MILSTAR-2 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 Nov 05 18:57 | 2025 Nov 01 22:41:22 | 28.2124 | 0.21269 | 11.1417 | 49.1115 | 327.5133 | 9.37483 | 3.243 |
| 2025 Nov 04 18:57 | 2025 Nov 01 22:41:22 | 28.2124 | 0.21269 | 11.1417 | 49.1115 | 327.5133 | 9.37483 | 3.243 |
| 2025 Nov 03 18:57 | 2025 Nov 01 22:41:22 | 28.2124 | 0.21269 | 11.1417 | 49.1115 | 327.5133 | 9.37483 | 3.243 |
| 2025 Nov 02 18:57 | 2025 Oct 27 22:27:48 | 28.2146 | 0.21267 | 11.9408 | 29.5124 | 327.5133 | 9.37483 | 3.243 |
| 2025 Nov 01 18:58 | 2025 Oct 27 22:27:48 | 28.2146 | 0.21267 | 11.9408 | 29.5124 | 327.5133 | 9.37483 | 3.243 |
| 2025 Oct 31 18:57 | 2025 Oct 27 22:27:48 | 28.2146 | 0.21267 | 11.9408 | 29.5124 | 327.5133 | 9.37483 | 3.243 |
| 2025 Oct 30 18:57 | 2025 Oct 27 22:27:48 | 28.2146 | 0.21267 | 11.9408 | 29.5124 | 327.5133 | 9.37483 | 3.243 |
| 2025 Oct 29 18:57 | 2025 Oct 27 22:27:48 | 28.2146 | 0.21267 | 11.9408 | 29.5124 | 327.5133 | 9.37483 | 3.243 |
| 2025 Oct 28 18:57 | 2025 Oct 23 21:15:17 | 28.2166 | 0.21266 | 12.5868 | 13.6642 | 327.5133 | 9.37483 | 3.243 |
| 2025 Oct 27 18:57 | 2025 Oct 23 21:15:17 | 28.2166 | 0.21266 | 12.5868 | 13.6642 | 327.5133 | 9.37483 | 3.243 |
| 2025 Oct 26 18:57 | 2025 Oct 23 21:15:17 | 28.2166 | 0.21266 | 12.5868 | 13.6642 | 327.5133 | 9.37483 | 3.243 |
| 2025 Oct 25 17:57 | 2025 Oct 23 21:15:17 | 28.2166 | 0.21266 | 12.5868 | 13.6642 | 327.5133 | 9.37483 | 3.243 |
| 2025 Oct 24 17:57 | 2025 Oct 23 21:15:17 | 28.2166 | 0.21266 | 12.5868 | 13.6642 | 327.5133 | 9.37483 | 3.243 |
| 2025 Oct 22 17:56 | 2025 Oct 18 00:33:21 | 28.2207 | 0.21267 | 13.5218 | 350.7244 | 327.5133 | 9.37483 | 3.243 |
| 2025 Oct 21 17:56 | 2025 Oct 18 00:33:21 | 28.2207 | 0.21267 | 13.5218 | 350.7244 | 327.5133 | 9.37483 | 3.243 |
| 2025 Oct 20 17:56 | 2025 Oct 18 00:33:21 | 28.2207 | 0.21267 | 13.5218 | 350.7244 | 327.5133 | 9.37483 | 3.243 |
| 2025 Oct 19 17:56 | 2025 Oct 18 00:33:21 | 28.2207 | 0.21267 | 13.5218 | 350.7244 | 327.5133 | 9.37483 | 3.243 |
| 2025 Oct 18 17:56 | 2025 Oct 18 00:33:21 | 28.2207 | 0.21267 | 13.5218 | 350.7244 | 327.5133 | 9.37483 | 3.243 |
| 2025 Oct 17 17:56 | 2025 Oct 07 01:04:33 | 28.2300 | 0.21273 | 15.2719 | 307.7798 | 327.5133 | 9.37483 | 3.243 |
| 2025 Oct 16 17:56 | 2025 Oct 07 01:04:33 | 28.2300 | 0.21273 | 15.2719 | 307.7798 | 327.5133 | 9.37483 | 3.243 |
| 2025 Oct 15 17:56 | 2025 Oct 07 01:04:33 | 28.2300 | 0.21273 | 15.2719 | 307.7798 | 327.5133 | 9.37483 | 3.243 |
| 2025 Oct 14 17:56 | 2025 Oct 07 01:04:33 | 28.2300 | 0.21273 | 15.2719 | 307.7798 | 327.5133 | 9.37483 | 3.243 |
| 2025 Oct 12 17:56 | 2025 Oct 07 01:04:33 | 28.2300 | 0.21273 | 15.2719 | 307.7798 | 327.5133 | 9.37483 | 3.243 |
| 2025 Oct 11 17:57 | 2025 Oct 07 01:04:33 | 28.2300 | 0.21273 | 15.2719 | 307.7798 | 327.5133 | 9.37483 | 3.243 |
| 2025 Oct 09 17:56 | 2025 Oct 07 01:04:33 | 28.2300 | 0.21273 | 15.2719 | 307.7798 | 327.5133 | 9.37483 | 3.243 |