Orbital elements of OPS 5644
| Launched | 4 June 1977 |
| Flight ended | – |
| Launch site | Air Force Western Test Range, California, USA |
| Owner | United States |
| NORAD ID | 10033 |
| Alternative names |
DMSP 5D-1 F2 |
| 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 Mar 01 18:57 | 2026 Feb 26 13:42:24 | 99.1334 | 0.00378 | 6.6939 | 187.6379 | 172.4232 | 14.31398 | 6.243 |
| 2026 Feb 28 18:56 | 2026 Feb 26 13:42:24 | 99.1334 | 0.00378 | 6.6939 | 187.6379 | 172.4232 | 14.31398 | 6.243 |
| 2026 Feb 27 19:05 | 2026 Feb 26 13:42:24 | 99.1334 | 0.00378 | 6.6939 | 187.6379 | 172.4232 | 14.31398 | 6.243 |
| 2026 Feb 26 20:45 | 2026 Feb 26 13:42:24 | 99.1334 | 0.00378 | 6.6939 | 187.6379 | 172.4232 | 14.31398 | 6.243 |
| 2026 Feb 05 18:58 | 2026 Feb 02 09:14:36 | 99.1372 | 0.00369 | 4.9986 | 258.7643 | 172.4232 | 14.31398 | 6.243 |
| 2026 Feb 04 18:57 | 2026 Feb 02 09:14:36 | 99.1372 | 0.00369 | 4.9986 | 258.7643 | 172.4232 | 14.31398 | 6.243 |
| 2026 Feb 03 18:56 | 2026 Feb 02 09:14:36 | 99.1372 | 0.00369 | 4.9986 | 258.7643 | 172.4232 | 14.31398 | 6.243 |
| 2026 Feb 02 18:56 | 2026 Feb 02 09:14:36 | 99.1372 | 0.00369 | 4.9986 | 258.7643 | 172.4232 | 14.31398 | 6.243 |