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 |
| 2026 Apr 29 17:57 | 2026 Apr 29 03:42:21 | 12.7368 | 0.00005 | 1.1182 | 59.1265 | 295.1756 | 0.99198 | 3.000 |
| 2026 Apr 28 17:56 | 2026 Apr 27 15:43:48 | 12.7356 | 0.00003 | 1.1189 | 50.5135 | 295.1756 | 0.99198 | 3.000 |
| 2026 Apr 27 17:58 | 2026 Apr 26 21:31:21 | 12.7349 | 0.00003 | 1.1192 | 46.3124 | 295.1756 | 0.99198 | 3.000 |
| 2026 Apr 26 17:58 | 2026 Apr 25 22:07:12 | 12.7341 | 0.00002 | 1.1196 | 39.5771 | 295.1756 | 0.99198 | 3.000 |
| 2026 Apr 25 17:58 | 2026 Apr 24 17:28:11 | 12.7329 | 0.00001 | 1.1201 | 16.2009 | 295.1756 | 0.99198 | 3.000 |
| 2026 Apr 24 17:59 | 2026 Apr 23 14:16:01 | 12.7318 | 0.00000 | 1.1206 | 285.9837 | 295.1756 | 0.99198 | 3.000 |
| 2026 Apr 23 17:57 | 2026 Apr 22 15:07:59 | 12.7308 | 0.00001 | 1.1210 | 235.7457 | 295.1756 | 0.99198 | 3.000 |
| 2026 Apr 22 17:57 | 2026 Apr 21 14:52:15 | 12.7297 | 0.00001 | 1.1214 | 218.2545 | 295.1756 | 0.99198 | 3.000 |
| 2026 Apr 21 17:57 | 2026 Apr 20 19:38:42 | 12.7289 | 0.00002 | 1.1217 | 208.7337 | 295.1756 | 0.99198 | 3.000 |
| 2026 Apr 20 17:57 | 2026 Apr 19 16:40:47 | 12.7276 | 0.00002 | 1.1221 | 196.6874 | 295.1756 | 0.99198 | 3.000 |
| 2026 Apr 19 17:58 | 2026 Apr 18 14:34:07 | 12.7265 | 0.00002 | 1.1225 | 185.3068 | 295.1756 | 0.99198 | 3.000 |
| 2026 Apr 18 17:56 | 2026 Apr 17 17:37:22 | 12.7255 | 0.00003 | 1.1229 | 176.4560 | 295.1756 | 0.99198 | 3.000 |
| 2026 Apr 16 17:57 | 2026 Apr 16 03:41:51 | 12.7238 | 0.00003 | 1.1235 | 156.6560 | 295.1756 | 0.99198 | 3.000 |
| 2026 Apr 14 17:57 | 2026 Apr 13 13:09:55 | 12.7211 | 0.00003 | 1.1246 | 123.1861 | 295.1756 | 0.99198 | 3.000 |
| 2026 Apr 13 17:57 | 2026 Apr 12 12:10:38 | 12.7201 | 0.00003 | 1.1250 | 110.6917 | 295.1756 | 0.99198 | 3.000 |
| 2026 Apr 12 17:57 | 2026 Apr 12 12:10:38 | 12.7201 | 0.00003 | 1.1250 | 110.6917 | 295.1756 | 0.99198 | 3.000 |
| 2026 Apr 11 17:57 | 2026 Apr 11 12:22:38 | 12.7192 | 0.00003 | 1.1255 | 98.5493 | 295.1756 | 0.99198 | 3.000 |
| 2026 Apr 10 17:58 | 2026 Apr 09 13:08:38 | 12.7174 | 0.00003 | 1.1264 | 73.3113 | 295.1756 | 0.99198 | 3.000 |
| 2026 Apr 09 18:01 | 2026 Apr 08 12:46:38 | 12.7164 | 0.00003 | 1.1269 | 60.3626 | 295.1756 | 0.99198 | 3.000 |
| 2026 Apr 08 17:57 | 2026 Apr 07 13:05:31 | 12.7156 | 0.00003 | 1.1273 | 45.8468 | 295.1756 | 0.99198 | 3.000 |
| 2026 Apr 07 17:57 | 2026 Apr 06 12:47:38 | 12.7146 | 0.00003 | 1.1278 | 31.3084 | 295.1756 | 0.99198 | 3.000 |
| 2026 Apr 06 17:57 | 2026 Apr 05 12:38:14 | 12.7137 | 0.00003 | 1.1283 | 16.3805 | 295.1756 | 0.99198 | 3.000 |
| 2026 Apr 05 17:56 | 2026 Apr 05 12:38:14 | 12.7137 | 0.00003 | 1.1283 | 16.3805 | 295.1756 | 0.99198 | 3.000 |
| 2026 Apr 04 17:57 | 2026 Apr 03 12:03:12 | 12.7119 | 0.00003 | 1.1293 | 342.7368 | 295.1756 | 0.99198 | 3.000 |
| 2026 Apr 03 17:56 | 2026 Apr 03 10:31:38 | 12.7118 | 0.00003 | 1.1293 | 342.7328 | 295.1756 | 0.99198 | 3.000 |
| 2026 Apr 02 18:03 | 2026 Apr 01 11:50:02 | 12.7100 | 0.00004 | 1.1302 | 314.8852 | 295.1756 | 0.99198 | 3.000 |