Orbital elements of COSMOS 990
| Launched | 16 February 1978 |
| Flight ended | – |
| Launch site | Plesetsk Missile and Space Complex, Russia |
| Owner | Commonwealth of Independent States (former USSR) |
| NORAD ID | 10676 |
| 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 Jun 24 17:55 | 2026 Jun 22 14:41:04 | 74.0375 | 0.00152 | 9.4040 | 114.3544 | 245.9200 | 14.37247 | 6.743 |
| 2026 Jun 23 17:56 | 2026 Jun 22 14:41:04 | 74.0375 | 0.00152 | 9.4040 | 114.3544 | 245.9200 | 14.37247 | 6.743 |
| 2026 Jun 22 17:56 | 2026 Jun 17 09:23:40 | 74.0371 | 0.00153 | 10.0440 | 125.9807 | 245.9200 | 14.37247 | 6.743 |
| 2026 Jun 21 17:57 | 2026 Jun 17 09:23:40 | 74.0371 | 0.00153 | 10.0440 | 125.9807 | 245.9200 | 14.37247 | 6.743 |
| 2026 Jun 20 17:56 | 2026 Jun 17 09:23:40 | 74.0371 | 0.00153 | 10.0440 | 125.9807 | 245.9200 | 14.37247 | 6.743 |
| 2026 Jun 19 17:57 | 2026 Jun 17 09:23:40 | 74.0371 | 0.00153 | 10.0440 | 125.9807 | 245.9200 | 14.37247 | 6.743 |
| 2026 Jun 18 17:56 | 2026 Jun 17 09:23:40 | 74.0371 | 0.00153 | 10.0440 | 125.9807 | 245.9200 | 14.37247 | 6.743 |
| 2026 Jun 17 17:57 | 2026 Jun 17 09:23:40 | 74.0371 | 0.00153 | 10.0440 | 125.9807 | 245.9200 | 14.37247 | 6.743 |
| 2026 Jun 16 17:55 | 2026 Jun 12 05:46:29 | 74.0368 | 0.00154 | 10.6756 | 137.3386 | 245.9200 | 14.37247 | 6.743 |
| 2026 Jun 15 17:56 | 2026 Jun 12 05:46:29 | 74.0368 | 0.00154 | 10.6756 | 137.3386 | 245.9200 | 14.37247 | 6.743 |
| 2026 Jun 14 17:57 | 2026 Jun 12 05:46:29 | 74.0368 | 0.00154 | 10.6756 | 137.3386 | 245.9200 | 14.37247 | 6.743 |
| 2026 Jun 13 17:56 | 2026 Jun 12 05:46:29 | 74.0368 | 0.00154 | 10.6756 | 137.3386 | 245.9200 | 14.37247 | 6.743 |
| 2026 Jun 12 17:56 | 2026 Jun 12 05:46:29 | 74.0368 | 0.00154 | 10.6756 | 137.3386 | 245.9200 | 14.37247 | 6.743 |
| 2026 Jun 11 17:57 | 2026 Jun 07 07:10:00 | 74.0367 | 0.00156 | 11.2815 | 148.0997 | 245.9200 | 14.37247 | 6.743 |
| 2026 Jun 10 17:56 | 2026 Jun 07 07:10:00 | 74.0367 | 0.00156 | 11.2815 | 148.0997 | 245.9200 | 14.37247 | 6.743 |
| 2026 Jun 09 17:57 | 2026 Jun 07 07:10:00 | 74.0367 | 0.00156 | 11.2815 | 148.0997 | 245.9200 | 14.37247 | 6.743 |
| 2026 Jun 08 17:56 | 2026 Jun 07 07:10:00 | 74.0367 | 0.00156 | 11.2815 | 148.0997 | 245.9200 | 14.37247 | 6.743 |
| 2026 Jun 07 17:56 | 2026 Jun 07 07:10:00 | 74.0367 | 0.00156 | 11.2815 | 148.0997 | 245.9200 | 14.37247 | 6.743 |
| 2026 Jun 06 17:56 | 2026 May 31 11:27:13 | 74.0372 | 0.00159 | 12.1179 | 162.7075 | 245.9200 | 14.37247 | 6.743 |
| 2026 Jun 05 17:56 | 2026 May 31 11:27:13 | 74.0372 | 0.00159 | 12.1179 | 162.7075 | 245.9200 | 14.37247 | 6.743 |
| 2026 Jun 04 17:57 | 2026 May 31 11:27:13 | 74.0372 | 0.00159 | 12.1179 | 162.7075 | 245.9200 | 14.37247 | 6.743 |
| 2026 Jun 02 17:56 | 2026 May 31 11:27:13 | 74.0372 | 0.00159 | 12.1179 | 162.7075 | 245.9200 | 14.37247 | 6.743 |
| 2026 Jun 01 17:57 | 2026 May 31 11:27:13 | 74.0372 | 0.00159 | 12.1179 | 162.7075 | 245.9200 | 14.37247 | 6.743 |
| 2026 May 31 17:58 | 2026 May 31 11:27:13 | 74.0372 | 0.00159 | 12.1179 | 162.7075 | 245.9200 | 14.37247 | 6.743 |
| 2026 May 30 17:57 | 2026 May 26 06:09:47 | 74.0376 | 0.00161 | 12.7580 | 173.7168 | 245.9200 | 14.37247 | 6.743 |
| 2026 May 29 17:57 | 2026 May 26 06:09:47 | 74.0376 | 0.00161 | 12.7580 | 173.7168 | 245.9200 | 14.37247 | 6.743 |
| 2026 May 28 17:56 | 2026 May 26 06:09:47 | 74.0376 | 0.00161 | 12.7580 | 173.7168 | 245.9200 | 14.37247 | 6.743 |