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 Apr 29 17:57 | 2026 Apr 24 13:20:18 | 70.0787 | 0.00193 | 18.1635 | 146.1328 | 277.5036 | 13.96651 | 7.743 |
| 2026 Apr 28 17:56 | 2026 Apr 24 13:20:18 | 70.0787 | 0.00193 | 18.1635 | 146.1328 | 277.5036 | 13.96651 | 7.743 |
| 2026 Apr 27 17:58 | 2026 Apr 24 13:20:18 | 70.0787 | 0.00193 | 18.1635 | 146.1328 | 277.5036 | 13.96651 | 7.743 |
| 2026 Apr 26 17:58 | 2026 Apr 24 13:20:18 | 70.0787 | 0.00193 | 18.1635 | 146.1328 | 277.5036 | 13.96651 | 7.743 |
| 2026 Apr 25 17:58 | 2026 Apr 24 13:20:18 | 70.0787 | 0.00193 | 18.1635 | 146.1328 | 277.5036 | 13.96651 | 7.743 |
| 2026 Apr 24 17:59 | 2026 Apr 24 13:20:18 | 70.0787 | 0.00193 | 18.1635 | 146.1328 | 277.5036 | 13.96651 | 7.743 |
| 2026 Apr 23 17:57 | 2026 Apr 19 04:57:04 | 70.0784 | 0.00196 | 18.9239 | 153.6340 | 277.5036 | 13.96651 | 7.743 |
| 2026 Apr 22 17:57 | 2026 Apr 19 04:57:04 | 70.0784 | 0.00196 | 18.9239 | 153.6340 | 277.5036 | 13.96651 | 7.743 |
| 2026 Apr 21 17:57 | 2026 Apr 19 04:57:04 | 70.0784 | 0.00196 | 18.9239 | 153.6340 | 277.5036 | 13.96651 | 7.743 |
| 2026 Apr 20 17:57 | 2026 Apr 19 04:57:04 | 70.0784 | 0.00196 | 18.9239 | 153.6340 | 277.5036 | 13.96651 | 7.743 |
| 2026 Apr 19 17:58 | 2026 Apr 19 04:57:04 | 70.0784 | 0.00196 | 18.9239 | 153.6340 | 277.5036 | 13.96651 | 7.743 |
| 2026 Apr 18 17:56 | 2026 Apr 13 06:19:04 | 70.0788 | 0.00199 | 19.7687 | 161.8462 | 277.5036 | 13.96651 | 7.743 |
| 2026 Apr 16 17:57 | 2026 Apr 13 06:19:04 | 70.0788 | 0.00199 | 19.7687 | 161.8462 | 277.5036 | 13.96651 | 7.743 |
| 2026 Apr 14 17:57 | 2026 Apr 13 06:19:04 | 70.0788 | 0.00199 | 19.7687 | 161.8462 | 277.5036 | 13.96651 | 7.743 |
| 2026 Apr 13 17:57 | 2026 Apr 13 06:19:04 | 70.0788 | 0.00199 | 19.7687 | 161.8462 | 277.5036 | 13.96651 | 7.743 |
| 2026 Apr 12 17:57 | 2026 Apr 08 14:04:24 | 70.0794 | 0.00202 | 20.4335 | 168.2252 | 277.5036 | 13.96651 | 7.743 |
| 2026 Apr 11 17:57 | 2026 Apr 08 14:04:24 | 70.0794 | 0.00202 | 20.4335 | 168.2252 | 277.5036 | 13.96651 | 7.743 |
| 2026 Apr 10 17:58 | 2026 Apr 08 14:04:24 | 70.0794 | 0.00202 | 20.4335 | 168.2252 | 277.5036 | 13.96651 | 7.743 |
| 2026 Apr 09 18:01 | 2026 Apr 08 14:04:24 | 70.0794 | 0.00202 | 20.4335 | 168.2252 | 277.5036 | 13.96651 | 7.743 |
| 2026 Apr 08 17:57 | 2026 Apr 08 14:04:24 | 70.0794 | 0.00202 | 20.4335 | 168.2252 | 277.5036 | 13.96651 | 7.743 |
| 2026 Apr 07 17:57 | 2026 Apr 02 02:02:42 | 70.0804 | 0.00206 | 21.3575 | 177.0306 | 277.5036 | 13.96651 | 7.743 |
| 2026 Apr 06 17:57 | 2026 Apr 02 02:02:42 | 70.0804 | 0.00206 | 21.3575 | 177.0306 | 277.5036 | 13.96651 | 7.743 |
| 2026 Apr 05 17:56 | 2026 Apr 02 02:02:42 | 70.0804 | 0.00206 | 21.3575 | 177.0306 | 277.5036 | 13.96651 | 7.743 |
| 2026 Apr 04 17:57 | 2026 Apr 02 02:02:42 | 70.0804 | 0.00206 | 21.3575 | 177.0306 | 277.5036 | 13.96651 | 7.743 |
| 2026 Apr 03 17:56 | 2026 Apr 02 02:02:42 | 70.0804 | 0.00206 | 21.3575 | 177.0306 | 277.5036 | 13.96651 | 7.743 |
| 2026 Apr 02 18:03 | 2026 Apr 02 02:02:42 | 70.0804 | 0.00206 | 21.3575 | 177.0306 | 277.5036 | 13.96651 | 7.743 |