Orbital elements of OPS 4988
| Launched | 8 March 1965 |
| Flight ended | – |
| Launch site | Air Force Western Test Range, California, USA |
| Owner | United States |
| NORAD ID | 1271 |
| Alternative names |
GREB 6 |
| 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 02 18:57 | 2026 Feb 26 06:24:54 | 70.0800 | 0.00227 | 2.3058 | 221.3323 | 235.6927 | 13.96639 | 7.743 |
| 2026 Mar 01 18:57 | 2026 Feb 26 06:24:54 | 70.0800 | 0.00227 | 2.3058 | 221.3323 | 235.6927 | 13.96639 | 7.743 |
| 2026 Feb 28 18:56 | 2026 Feb 26 06:24:54 | 70.0800 | 0.00227 | 2.3058 | 221.3323 | 235.6927 | 13.96639 | 7.743 |
| 2026 Feb 27 19:05 | 2026 Feb 26 06:24:54 | 70.0800 | 0.00227 | 2.3058 | 221.3323 | 235.6927 | 13.96639 | 7.743 |
| 2026 Feb 26 20:45 | 2026 Feb 26 06:24:54 | 70.0800 | 0.00227 | 2.3058 | 221.3323 | 235.6927 | 13.96639 | 7.743 |
| 2026 Feb 05 18:58 | 2026 Feb 02 11:45:44 | 70.0788 | 0.00236 | 5.6855 | 249.4148 | 235.6927 | 13.96639 | 7.743 |
| 2026 Feb 04 18:57 | 2026 Feb 02 11:45:44 | 70.0788 | 0.00236 | 5.6855 | 249.4148 | 235.6927 | 13.96639 | 7.743 |
| 2026 Feb 03 18:56 | 2026 Feb 02 11:45:44 | 70.0788 | 0.00236 | 5.6855 | 249.4148 | 235.6927 | 13.96639 | 7.743 |