Orbital elements of USA 159
| Launched | 5 August 2001 |
| Flight ended | – |
| Launch site | Air Force Eastern Test Range, Florida, USA |
| Owner | United States |
| NORAD ID | 26880 |
| Alternative names |
DSP 21 |
| 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 Sep 03 17:57 | 2025 Sep 03 05:28:24 | 12.5131 | 0.00009 | 1.2266 | 217.5129 | 139.4062 | 1.00264 | 3.000 |
| 2025 Sep 02 17:56 | 2025 Sep 02 04:41:38 | 12.5122 | 0.00008 | 1.2271 | 219.8545 | 139.4062 | 1.00264 | 3.000 |
| 2025 Sep 01 17:56 | 2025 Sep 01 05:30:32 | 12.5113 | 0.00007 | 1.2275 | 222.9162 | 139.4062 | 1.00264 | 3.000 |
| 2025 Aug 31 17:56 | 2025 Aug 31 05:31:39 | 12.5104 | 0.00007 | 1.2280 | 226.6685 | 139.4062 | 1.00264 | 3.000 |
| 2025 Aug 30 17:56 | 2025 Aug 29 05:33:45 | 12.5086 | 0.00007 | 1.2290 | 234.3713 | 139.4062 | 1.00264 | 3.000 |
| 2025 Aug 29 17:56 | 2025 Aug 29 05:33:45 | 12.5086 | 0.00007 | 1.2290 | 234.3713 | 139.4062 | 1.00264 | 3.000 |
| 2025 Aug 28 17:57 | 2025 Aug 27 17:35:28 | 12.5073 | 0.00007 | 1.2297 | 239.1688 | 139.4062 | 1.00264 | 3.000 |
| 2025 Aug 27 17:56 | 2025 Aug 27 05:41:35 | 12.5069 | 0.00008 | 1.2300 | 239.9391 | 139.4062 | 1.00264 | 3.000 |
| 2025 Aug 26 17:56 | 2025 Aug 25 19:20:12 | 12.5056 | 0.00009 | 1.2307 | 242.0927 | 139.4062 | 1.00264 | 3.000 |
| 2025 Aug 25 17:56 | 2025 Aug 24 19:21:15 | 12.5047 | 0.00009 | 1.2312 | 242.2735 | 139.4062 | 1.00264 | 3.000 |
| 2025 Aug 24 17:56 | 2025 Aug 23 17:39:44 | 12.5037 | 0.00010 | 1.2317 | 241.7996 | 139.4062 | 1.00264 | 3.000 |
| 2025 Aug 23 17:56 | 2025 Aug 22 06:15:38 | 12.5023 | 0.00010 | 1.2323 | 240.0647 | 139.4062 | 1.00264 | 3.000 |
| 2025 Aug 22 17:56 | 2025 Aug 21 07:38:28 | 12.5014 | 0.00011 | 1.2328 | 238.6041 | 139.4062 | 1.00264 | 3.000 |
| 2025 Aug 20 17:56 | 2025 Aug 19 19:26:44 | 12.4999 | 0.00011 | 1.2334 | 234.7746 | 139.4062 | 1.00264 | 3.000 |
| 2025 Aug 19 17:56 | 2025 Aug 19 07:27:15 | 12.4994 | 0.00012 | 1.2336 | 233.9534 | 139.4062 | 1.00264 | 3.000 |
| 2025 Aug 18 17:56 | 2025 Aug 17 19:28:51 | 12.4978 | 0.00012 | 1.2343 | 229.4970 | 139.4062 | 1.00264 | 3.000 |
| 2025 Aug 16 17:56 | 2025 Aug 16 07:30:31 | 12.4963 | 0.00011 | 1.2349 | 225.0679 | 139.4062 | 1.00264 | 3.000 |
| 2025 Aug 15 17:57 | 2025 Aug 14 19:32:03 | 12.4946 | 0.00010 | 1.2355 | 220.4891 | 139.4062 | 1.00264 | 3.000 |
| 2025 Aug 14 17:56 | 2025 Aug 13 19:33:10 | 12.4936 | 0.00010 | 1.2359 | 217.4135 | 139.4062 | 1.00264 | 3.000 |
| 2025 Aug 13 17:58 | 2025 Aug 12 07:34:42 | 12.4920 | 0.00009 | 1.2366 | 211.8919 | 139.4062 | 1.00264 | 3.000 |
| 2025 Aug 12 17:56 | 2025 Aug 11 19:35:16 | 12.4914 | 0.00008 | 1.2368 | 211.4107 | 139.4062 | 1.00264 | 3.000 |
| 2025 Aug 11 17:56 | 2025 Aug 11 07:35:45 | 12.4909 | 0.00008 | 1.2370 | 208.8155 | 139.4062 | 1.00264 | 3.000 |
| 2025 Aug 10 17:57 | 2025 Aug 09 19:37:17 | 12.4894 | 0.00007 | 1.2377 | 205.9570 | 139.4062 | 1.00264 | 3.000 |
| 2025 Aug 09 17:56 | 2025 Aug 08 19:38:20 | 12.4884 | 0.00006 | 1.2382 | 203.8463 | 139.4062 | 1.00264 | 3.000 |
| 2025 Aug 08 17:56 | 2025 Aug 08 07:38:45 | 12.4879 | 0.00005 | 1.2384 | 201.9915 | 139.4062 | 1.00264 | 3.000 |