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 |
| 2025 Sep 18 17:56 | 2025 Sep 15 06:04:21 | 10.7963 | 0.00055 | 1.6239 | 231.3167 | 317.9132 | 1.00342 | 6.000 |
| 2025 Sep 15 17:56 | 2025 Sep 15 06:04:21 | 10.7963 | 0.00055 | 1.6239 | 231.3167 | 317.9132 | 1.00342 | 6.000 |
| 2025 Sep 12 17:57 | 2025 Sep 02 20:53:25 | 10.7798 | 0.00044 | 1.6283 | 228.6974 | 317.9132 | 1.00342 | 6.000 |
| 2025 Sep 11 17:57 | 2025 Sep 02 20:53:25 | 10.7798 | 0.00044 | 1.6283 | 228.6974 | 317.9132 | 1.00342 | 6.000 |
| 2025 Sep 10 17:56 | 2025 Sep 02 20:53:25 | 10.7798 | 0.00044 | 1.6283 | 228.6974 | 317.9132 | 1.00342 | 6.000 |
| 2025 Sep 08 17:57 | 2025 Sep 02 20:53:25 | 10.7798 | 0.00044 | 1.6283 | 228.6974 | 317.9132 | 1.00342 | 6.000 |
| 2025 Sep 07 17:56 | 2025 Sep 02 20:53:25 | 10.7798 | 0.00044 | 1.6283 | 228.6974 | 317.9132 | 1.00342 | 6.000 |
| 2025 Sep 06 20:41 | 2025 Sep 02 20:53:25 | 10.7798 | 0.00044 | 1.6283 | 228.6974 | 317.9132 | 1.00342 | 6.000 |
| 2025 Sep 03 17:57 | 2025 Sep 02 20:53:25 | 10.7798 | 0.00044 | 1.6283 | 228.6974 | 317.9132 | 1.00342 | 6.000 |
| 2025 Sep 02 17:56 | 2025 Aug 27 18:06:12 | 10.7729 | 0.00043 | 1.6309 | 231.8087 | 317.9132 | 1.00342 | 6.000 |
| 2025 Sep 01 17:56 | 2025 Aug 27 18:06:12 | 10.7729 | 0.00043 | 1.6309 | 231.8087 | 317.9132 | 1.00342 | 6.000 |
| 2025 Aug 31 17:56 | 2025 Aug 27 18:06:12 | 10.7729 | 0.00043 | 1.6309 | 231.8087 | 317.9132 | 1.00342 | 6.000 |
| 2025 Aug 30 17:56 | 2025 Aug 27 18:06:12 | 10.7729 | 0.00043 | 1.6309 | 231.8087 | 317.9132 | 1.00342 | 6.000 |
| 2025 Aug 29 17:56 | 2025 Aug 27 18:06:12 | 10.7729 | 0.00043 | 1.6309 | 231.8087 | 317.9132 | 1.00342 | 6.000 |
| 2025 Aug 28 17:57 | 2025 Aug 27 18:06:12 | 10.7729 | 0.00043 | 1.6309 | 231.8087 | 317.9132 | 1.00342 | 6.000 |
| 2025 Aug 27 17:56 | 2025 Aug 22 08:12:46 | 10.7667 | 0.00044 | 1.6331 | 232.0286 | 317.9132 | 1.00342 | 6.000 |
| 2025 Aug 26 17:56 | 2025 Aug 22 08:12:46 | 10.7667 | 0.00044 | 1.6331 | 232.0286 | 317.9132 | 1.00342 | 6.000 |
| 2025 Aug 25 17:56 | 2025 Aug 22 08:12:46 | 10.7667 | 0.00044 | 1.6331 | 232.0286 | 317.9132 | 1.00342 | 6.000 |
| 2025 Aug 24 17:56 | 2025 Aug 22 08:12:46 | 10.7667 | 0.00044 | 1.6331 | 232.0286 | 317.9132 | 1.00342 | 6.000 |
| 2025 Aug 23 17:56 | 2025 Aug 22 08:12:46 | 10.7667 | 0.00044 | 1.6331 | 232.0286 | 317.9132 | 1.00342 | 6.000 |
| 2025 Aug 22 17:56 | 2025 Aug 17 20:17:13 | 10.7610 | 0.00045 | 1.6346 | 229.9225 | 317.9132 | 1.00342 | 6.000 |