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 Jun 24 17:55 | 2026 Jun 22 10:02:20 | 11.1380 | 0.00036 | 1.5155 | 257.7292 | 294.0211 | 1.00270 | 6.000 |
| 2026 Jun 23 17:56 | 2026 Jun 22 10:02:20 | 11.1380 | 0.00036 | 1.5155 | 257.7292 | 294.0211 | 1.00270 | 6.000 |
| 2026 Jun 22 17:56 | 2026 Jun 16 12:52:33 | 11.1308 | 0.00040 | 1.5178 | 257.8509 | 294.0211 | 1.00270 | 6.000 |
| 2026 Jun 21 17:57 | 2026 Jun 16 12:52:33 | 11.1308 | 0.00040 | 1.5178 | 257.8509 | 294.0211 | 1.00270 | 6.000 |
| 2026 Jun 20 17:56 | 2026 Jun 16 12:52:33 | 11.1308 | 0.00040 | 1.5178 | 257.8509 | 294.0211 | 1.00270 | 6.000 |
| 2026 Jun 19 17:57 | 2026 Jun 16 12:52:33 | 11.1308 | 0.00040 | 1.5178 | 257.8509 | 294.0211 | 1.00270 | 6.000 |
| 2026 Jun 18 17:56 | 2026 Jun 16 12:52:33 | 11.1308 | 0.00040 | 1.5178 | 257.8509 | 294.0211 | 1.00270 | 6.000 |
| 2026 Jun 17 17:57 | 2026 Jun 16 12:52:33 | 11.1308 | 0.00040 | 1.5178 | 257.8509 | 294.0211 | 1.00270 | 6.000 |
| 2026 Jun 16 17:55 | 2026 Jun 11 20:49:11 | 11.1246 | 0.00040 | 1.5194 | 257.3088 | 294.0211 | 1.00270 | 6.000 |
| 2026 Jun 15 17:56 | 2026 Jun 11 20:49:11 | 11.1246 | 0.00040 | 1.5194 | 257.3088 | 294.0211 | 1.00270 | 6.000 |
| 2026 Jun 14 17:57 | 2026 Jun 11 20:49:11 | 11.1246 | 0.00040 | 1.5194 | 257.3088 | 294.0211 | 1.00270 | 6.000 |
| 2026 Jun 13 17:56 | 2026 Jun 11 20:49:11 | 11.1246 | 0.00040 | 1.5194 | 257.3088 | 294.0211 | 1.00270 | 6.000 |
| 2026 Jun 12 17:56 | 2026 Jun 11 20:49:11 | 11.1246 | 0.00040 | 1.5194 | 257.3088 | 294.0211 | 1.00270 | 6.000 |
| 2026 Jun 11 17:57 | 2026 Jun 06 14:39:18 | 11.1182 | 0.00038 | 1.5216 | 262.7360 | 294.0211 | 1.00270 | 6.000 |
| 2026 Jun 10 17:56 | 2026 Jun 06 14:39:18 | 11.1182 | 0.00038 | 1.5216 | 262.7360 | 294.0211 | 1.00270 | 6.000 |
| 2026 Jun 09 17:57 | 2026 Jun 06 14:39:18 | 11.1182 | 0.00038 | 1.5216 | 262.7360 | 294.0211 | 1.00270 | 6.000 |
| 2026 Jun 08 17:56 | 2026 Jun 06 14:39:18 | 11.1182 | 0.00038 | 1.5216 | 262.7360 | 294.0211 | 1.00270 | 6.000 |
| 2026 Jun 07 17:56 | 2026 Jun 06 14:39:18 | 11.1182 | 0.00038 | 1.5216 | 262.7360 | 294.0211 | 1.00270 | 6.000 |
| 2026 Jun 06 17:56 | 2026 May 31 11:02:37 | 11.1116 | 0.00039 | 1.5244 | 271.1755 | 294.0211 | 1.00270 | 6.000 |
| 2026 Jun 05 17:56 | 2026 May 31 11:02:37 | 11.1116 | 0.00039 | 1.5244 | 271.1755 | 294.0211 | 1.00270 | 6.000 |
| 2026 Jun 04 17:57 | 2026 May 31 11:02:37 | 11.1116 | 0.00039 | 1.5244 | 271.1755 | 294.0211 | 1.00270 | 6.000 |
| 2026 Jun 02 17:56 | 2026 May 31 11:02:37 | 11.1116 | 0.00039 | 1.5244 | 271.1755 | 294.0211 | 1.00270 | 6.000 |
| 2026 Jun 01 17:57 | 2026 May 31 11:02:37 | 11.1116 | 0.00039 | 1.5244 | 271.1755 | 294.0211 | 1.00270 | 6.000 |
| 2026 May 31 17:58 | 2026 May 31 11:02:37 | 11.1116 | 0.00039 | 1.5244 | 271.1755 | 294.0211 | 1.00270 | 6.000 |
| 2026 May 30 17:57 | 2026 May 25 13:31:13 | 11.1053 | 0.00045 | 1.5270 | 273.7003 | 294.0211 | 1.00270 | 6.000 |
| 2026 May 29 17:57 | 2026 May 25 13:31:13 | 11.1053 | 0.00045 | 1.5270 | 273.7003 | 294.0211 | 1.00270 | 6.000 |
| 2026 May 28 17:56 | 2026 May 25 13:31:13 | 11.1053 | 0.00045 | 1.5270 | 273.7003 | 294.0211 | 1.00270 | 6.000 |