Orbital elements of UFO 8
| Launched | 15 March 1998 |
| Flight ended | – |
| Launch site | Air Force Eastern Test Range, Florida, USA |
| Owner | United States |
| NORAD ID | 25258 |
| Alternative names |
USA 138 |
| 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 Jul 11 17:56 | 2026 Jul 11 11:53:00 | 11.1599 | 0.00041 | 1.5070 | 239.5747 | 358.4766 | 1.00266 | 6.000 |
| 2026 Jul 09 17:56 | 2026 Jul 04 21:27:31 | 11.1515 | 0.00036 | 1.5097 | 241.4595 | 358.4766 | 1.00266 | 6.000 |
| 2026 Jul 08 17:56 | 2026 Jul 04 21:27:31 | 11.1515 | 0.00036 | 1.5097 | 241.4595 | 358.4766 | 1.00266 | 6.000 |
| 2026 Jul 07 17:56 | 2026 Jul 04 21:27:31 | 11.1515 | 0.00036 | 1.5097 | 241.4595 | 358.4766 | 1.00266 | 6.000 |
| 2026 Jul 06 17:57 | 2026 Jul 04 21:27:31 | 11.1515 | 0.00036 | 1.5097 | 241.4595 | 358.4766 | 1.00266 | 6.000 |
| 2026 Jul 05 17:56 | 2026 Jul 04 21:27:31 | 11.1515 | 0.00036 | 1.5097 | 241.4595 | 358.4766 | 1.00266 | 6.000 |
| 2026 Jul 04 17:56 | 2026 Jun 28 20:01:54 | 11.1449 | 0.00033 | 1.5125 | 250.3851 | 358.4766 | 1.00266 | 6.000 |
| 2026 Jul 03 17:57 | 2026 Jun 28 20:01:54 | 11.1449 | 0.00033 | 1.5125 | 250.3851 | 358.4766 | 1.00266 | 6.000 |
| 2026 Jul 02 17:56 | 2026 Jun 28 20:01:54 | 11.1449 | 0.00033 | 1.5125 | 250.3851 | 358.4766 | 1.00266 | 6.000 |
| 2026 Jul 01 17:56 | 2026 Jun 28 20:01:54 | 11.1449 | 0.00033 | 1.5125 | 250.3851 | 358.4766 | 1.00266 | 6.000 |
| 2026 Jun 30 17:56 | 2026 Jun 28 20:01:54 | 11.1449 | 0.00033 | 1.5125 | 250.3851 | 358.4766 | 1.00266 | 6.000 |
| 2026 Jun 29 17:57 | 2026 Jun 28 20:01:54 | 11.1449 | 0.00033 | 1.5125 | 250.3851 | 358.4766 | 1.00266 | 6.000 |
| 2026 Jun 28 17:56 | 2026 Jun 22 10:02:20 | 11.1380 | 0.00036 | 1.5155 | 257.7292 | 358.4766 | 1.00266 | 6.000 |
| 2026 Jun 27 17:55 | 2026 Jun 22 10:02:20 | 11.1380 | 0.00036 | 1.5155 | 257.7292 | 358.4766 | 1.00266 | 6.000 |
| 2026 Jun 26 17:56 | 2026 Jun 22 10:02:20 | 11.1380 | 0.00036 | 1.5155 | 257.7292 | 358.4766 | 1.00266 | 6.000 |
| 2026 Jun 25 17:56 | 2026 Jun 22 10:02:20 | 11.1380 | 0.00036 | 1.5155 | 257.7292 | 358.4766 | 1.00266 | 6.000 |
| 2026 Jun 24 17:55 | 2026 Jun 22 10:02:20 | 11.1380 | 0.00036 | 1.5155 | 257.7292 | 358.4766 | 1.00266 | 6.000 |
| 2026 Jun 23 17:56 | 2026 Jun 22 10:02:20 | 11.1380 | 0.00036 | 1.5155 | 257.7292 | 358.4766 | 1.00266 | 6.000 |
| 2026 Jun 22 17:56 | 2026 Jun 16 12:52:33 | 11.1308 | 0.00040 | 1.5178 | 257.8509 | 358.4766 | 1.00266 | 6.000 |
| 2026 Jun 21 17:57 | 2026 Jun 16 12:52:33 | 11.1308 | 0.00040 | 1.5178 | 257.8509 | 358.4766 | 1.00266 | 6.000 |
| 2026 Jun 20 17:56 | 2026 Jun 16 12:52:33 | 11.1308 | 0.00040 | 1.5178 | 257.8509 | 358.4766 | 1.00266 | 6.000 |
| 2026 Jun 19 17:57 | 2026 Jun 16 12:52:33 | 11.1308 | 0.00040 | 1.5178 | 257.8509 | 358.4766 | 1.00266 | 6.000 |
| 2026 Jun 18 17:56 | 2026 Jun 16 12:52:33 | 11.1308 | 0.00040 | 1.5178 | 257.8509 | 358.4766 | 1.00266 | 6.000 |
| 2026 Jun 17 17:57 | 2026 Jun 16 12:52:33 | 11.1308 | 0.00040 | 1.5178 | 257.8509 | 358.4766 | 1.00266 | 6.000 |
| 2026 Jun 16 17:55 | 2026 Jun 11 20:49:11 | 11.1246 | 0.00040 | 1.5194 | 257.3088 | 358.4766 | 1.00266 | 6.000 |
| 2026 Jun 15 17:56 | 2026 Jun 11 20:49:11 | 11.1246 | 0.00040 | 1.5194 | 257.3088 | 358.4766 | 1.00266 | 6.000 |
| 2026 Jun 14 17:57 | 2026 Jun 11 20:49:11 | 11.1246 | 0.00040 | 1.5194 | 257.3088 | 358.4766 | 1.00266 | 6.000 |