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 Feb 05 18:58 | 2026 Feb 01 19:19:47 | 10.9661 | 0.00086 | 1.5716 | 265.6345 | 281.9245 | 1.00293 | 6.000 |
| 2026 Feb 04 18:57 | 2026 Feb 01 19:19:47 | 10.9661 | 0.00086 | 1.5716 | 265.6345 | 281.9245 | 1.00293 | 6.000 |
| 2026 Feb 03 18:56 | 2026 Feb 01 19:19:47 | 10.9661 | 0.00086 | 1.5716 | 265.6345 | 281.9245 | 1.00293 | 6.000 |
| 2026 Feb 02 18:56 | 2026 Feb 01 19:19:47 | 10.9661 | 0.00086 | 1.5716 | 265.6345 | 281.9245 | 1.00293 | 6.000 |
| 2026 Feb 01 18:56 | 2026 Jan 27 07:31:21 | 10.9587 | 0.00086 | 1.5735 | 262.8450 | 281.9245 | 1.00293 | 6.000 |
| 2026 Jan 31 18:56 | 2026 Jan 27 07:31:21 | 10.9587 | 0.00086 | 1.5735 | 262.8450 | 281.9245 | 1.00293 | 6.000 |
| 2026 Jan 30 18:57 | 2026 Jan 27 07:31:21 | 10.9587 | 0.00086 | 1.5735 | 262.8450 | 281.9245 | 1.00293 | 6.000 |
| 2026 Jan 29 18:56 | 2026 Jan 27 07:31:21 | 10.9587 | 0.00086 | 1.5735 | 262.8450 | 281.9245 | 1.00293 | 6.000 |
| 2026 Jan 28 18:56 | 2026 Jan 27 07:31:21 | 10.9587 | 0.00086 | 1.5735 | 262.8450 | 281.9245 | 1.00293 | 6.000 |
| 2026 Jan 27 18:56 | 2026 Jan 22 07:41:49 | 10.9520 | 0.00083 | 1.5754 | 262.3106 | 281.9245 | 1.00293 | 6.000 |
| 2026 Jan 26 18:57 | 2026 Jan 22 07:41:49 | 10.9520 | 0.00083 | 1.5754 | 262.3106 | 281.9245 | 1.00293 | 6.000 |
| 2026 Jan 25 18:57 | 2026 Jan 22 07:41:49 | 10.9520 | 0.00083 | 1.5754 | 262.3106 | 281.9245 | 1.00293 | 6.000 |
| 2026 Jan 24 18:58 | 2026 Jan 22 07:41:49 | 10.9520 | 0.00083 | 1.5754 | 262.3106 | 281.9245 | 1.00293 | 6.000 |
| 2026 Jan 22 18:56 | 2026 Jan 22 07:41:49 | 10.9520 | 0.00083 | 1.5754 | 262.3106 | 281.9245 | 1.00293 | 6.000 |
| 2026 Jan 21 18:56 | 2026 Jan 14 19:57:24 | 10.9435 | 0.00082 | 1.5787 | 263.7058 | 281.9245 | 1.00293 | 6.000 |
| 2026 Jan 20 19:06 | 2026 Jan 14 19:57:24 | 10.9435 | 0.00082 | 1.5787 | 263.7058 | 281.9245 | 1.00293 | 6.000 |
| 2026 Jan 19 18:57 | 2026 Jan 14 19:57:24 | 10.9435 | 0.00082 | 1.5787 | 263.7058 | 281.9245 | 1.00293 | 6.000 |
| 2026 Jan 18 18:57 | 2026 Jan 14 19:57:24 | 10.9435 | 0.00082 | 1.5787 | 263.7058 | 281.9245 | 1.00293 | 6.000 |
| 2026 Jan 17 18:56 | 2026 Jan 14 19:57:24 | 10.9435 | 0.00082 | 1.5787 | 263.7058 | 281.9245 | 1.00293 | 6.000 |
| 2026 Jan 16 18:57 | 2026 Jan 14 19:57:24 | 10.9435 | 0.00082 | 1.5787 | 263.7058 | 281.9245 | 1.00293 | 6.000 |
| 2026 Jan 15 18:56 | 2026 Jan 11 12:55:09 | 10.9400 | 0.00083 | 1.5801 | 263.5425 | 281.9245 | 1.00293 | 6.000 |