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 Dec 22 18:57 | 2025 Dec 20 10:29:46 | 10.9126 | 0.00081 | 1.5884 | 257.3512 | 110.6400 | 1.00305 | 6.000 |
| 2025 Dec 21 18:57 | 2025 Dec 20 10:29:46 | 10.9126 | 0.00081 | 1.5884 | 257.3512 | 110.6400 | 1.00305 | 6.000 |
| 2025 Dec 20 18:57 | 2025 Dec 20 10:29:46 | 10.9126 | 0.00081 | 1.5884 | 257.3512 | 110.6400 | 1.00305 | 6.000 |
| 2025 Dec 19 18:57 | 2025 Dec 11 10:46:21 | 10.9029 | 0.00084 | 1.5921 | 255.6731 | 110.6400 | 1.00305 | 6.000 |
| 2025 Dec 18 18:57 | 2025 Dec 11 10:46:21 | 10.9029 | 0.00084 | 1.5921 | 255.6731 | 110.6400 | 1.00305 | 6.000 |
| 2025 Dec 17 18:58 | 2025 Dec 11 10:46:21 | 10.9029 | 0.00084 | 1.5921 | 255.6731 | 110.6400 | 1.00305 | 6.000 |
| 2025 Dec 16 18:57 | 2025 Dec 11 10:46:21 | 10.9029 | 0.00084 | 1.5921 | 255.6731 | 110.6400 | 1.00305 | 6.000 |
| 2025 Dec 15 18:58 | 2025 Dec 11 10:46:21 | 10.9029 | 0.00084 | 1.5921 | 255.6731 | 110.6400 | 1.00305 | 6.000 |
| 2025 Dec 14 18:56 | 2025 Dec 11 10:46:21 | 10.9029 | 0.00084 | 1.5921 | 255.6731 | 110.6400 | 1.00305 | 6.000 |
| 2025 Dec 13 18:56 | 2025 Dec 11 10:46:21 | 10.9029 | 0.00084 | 1.5921 | 255.6731 | 110.6400 | 1.00305 | 6.000 |
| 2025 Dec 12 18:57 | 2025 Dec 11 10:46:21 | 10.9029 | 0.00084 | 1.5921 | 255.6731 | 110.6400 | 1.00305 | 6.000 |
| 2025 Dec 11 18:56 | 2025 Dec 07 00:06:51 | 10.8974 | 0.00085 | 1.5936 | 253.0645 | 110.6400 | 1.00305 | 6.000 |
| 2025 Dec 10 18:56 | 2025 Dec 07 00:06:51 | 10.8974 | 0.00085 | 1.5936 | 253.0645 | 110.6400 | 1.00305 | 6.000 |
| 2025 Dec 09 18:56 | 2025 Dec 07 00:06:51 | 10.8974 | 0.00085 | 1.5936 | 253.0645 | 110.6400 | 1.00305 | 6.000 |
| 2025 Dec 08 18:56 | 2025 Dec 07 00:06:51 | 10.8974 | 0.00085 | 1.5936 | 253.0645 | 110.6400 | 1.00305 | 6.000 |
| 2025 Dec 07 18:56 | 2025 Dec 07 00:06:51 | 10.8974 | 0.00085 | 1.5936 | 253.0645 | 110.6400 | 1.00305 | 6.000 |
| 2025 Dec 06 18:56 | 2025 Dec 02 11:21:38 | 10.8912 | 0.00083 | 1.5950 | 250.2767 | 110.6400 | 1.00305 | 6.000 |
| 2025 Dec 05 18:57 | 2025 Dec 02 11:21:38 | 10.8912 | 0.00083 | 1.5950 | 250.2767 | 110.6400 | 1.00305 | 6.000 |
| 2025 Dec 04 18:57 | 2025 Dec 02 11:21:38 | 10.8912 | 0.00083 | 1.5950 | 250.2767 | 110.6400 | 1.00305 | 6.000 |
| 2025 Dec 03 18:56 | 2025 Dec 02 11:21:38 | 10.8912 | 0.00083 | 1.5950 | 250.2767 | 110.6400 | 1.00305 | 6.000 |
| 2025 Dec 02 18:56 | 2025 Dec 02 11:21:38 | 10.8912 | 0.00083 | 1.5950 | 250.2767 | 110.6400 | 1.00305 | 6.000 |
| 2025 Nov 30 18:57 | 2025 Nov 25 11:14:23 | 10.8824 | 0.00077 | 1.5975 | 249.1957 | 110.6400 | 1.00305 | 6.000 |
| 2025 Nov 29 18:56 | 2025 Nov 25 11:14:23 | 10.8824 | 0.00077 | 1.5975 | 249.1957 | 110.6400 | 1.00305 | 6.000 |
| 2025 Nov 28 18:57 | 2025 Nov 25 11:14:23 | 10.8824 | 0.00077 | 1.5975 | 249.1957 | 110.6400 | 1.00305 | 6.000 |
| 2025 Nov 27 18:57 | 2025 Nov 25 11:14:23 | 10.8824 | 0.00077 | 1.5975 | 249.1957 | 110.6400 | 1.00305 | 6.000 |
| 2025 Nov 26 18:57 | 2025 Nov 25 11:14:23 | 10.8824 | 0.00077 | 1.5975 | 249.1957 | 110.6400 | 1.00305 | 6.000 |
| 2025 Nov 25 18:57 | 2025 Nov 25 11:14:23 | 10.8824 | 0.00077 | 1.5975 | 249.1957 | 110.6400 | 1.00305 | 6.000 |