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 Aug 24 17:57 | 2026 Aug 18 14:50:30 | 74.0383 | 0.00165 | 2.4139 | 350.2147 | 9.8684 | 14.37261 | 6.743 |
| 2026 Aug 23 17:56 | 2026 Aug 18 14:50:30 | 74.0383 | 0.00165 | 2.4139 | 350.2147 | 9.8684 | 14.37261 | 6.743 |
| 2026 Aug 22 17:56 | 2026 Aug 18 14:50:30 | 74.0383 | 0.00165 | 2.4139 | 350.2147 | 9.8684 | 14.37261 | 6.743 |
| 2026 Aug 21 17:56 | 2026 Aug 18 14:50:30 | 74.0383 | 0.00165 | 2.4139 | 350.2147 | 9.8684 | 14.37261 | 6.743 |
| 2026 Aug 20 17:57 | 2026 Aug 18 14:50:30 | 74.0383 | 0.00165 | 2.4139 | 350.2147 | 9.8684 | 14.37261 | 6.743 |
| 2026 Aug 19 17:57 | 2026 Aug 18 14:50:30 | 74.0383 | 0.00165 | 2.4139 | 350.2147 | 9.8684 | 14.37261 | 6.743 |
| 2026 Aug 18 17:56 | 2026 Aug 12 23:31:48 | 74.0376 | 0.00162 | 3.1053 | 1.9855 | 9.8684 | 14.37261 | 6.743 |
| 2026 Aug 17 17:56 | 2026 Aug 12 23:31:48 | 74.0376 | 0.00162 | 3.1053 | 1.9855 | 9.8684 | 14.37261 | 6.743 |
| 2026 Aug 16 17:56 | 2026 Aug 12 23:31:48 | 74.0376 | 0.00162 | 3.1053 | 1.9855 | 9.8684 | 14.37261 | 6.743 |
| 2026 Aug 15 17:57 | 2026 Aug 12 23:31:48 | 74.0376 | 0.00162 | 3.1053 | 1.9855 | 9.8684 | 14.37261 | 6.743 |
| 2026 Aug 14 17:56 | 2026 Aug 12 23:31:48 | 74.0376 | 0.00162 | 3.1053 | 1.9855 | 9.8684 | 14.37261 | 6.743 |
| 2026 Aug 13 17:57 | 2026 Aug 12 23:31:48 | 74.0376 | 0.00162 | 3.1053 | 1.9855 | 9.8684 | 14.37261 | 6.743 |
| 2026 Aug 12 17:56 | 2026 Aug 07 06:32:52 | 74.0373 | 0.00160 | 3.8052 | 13.9877 | 9.8684 | 14.37261 | 6.743 |
| 2026 Aug 11 17:56 | 2026 Aug 07 06:32:52 | 74.0373 | 0.00160 | 3.8052 | 13.9877 | 9.8684 | 14.37261 | 6.743 |
| 2026 Aug 10 17:56 | 2026 Aug 07 06:32:52 | 74.0373 | 0.00160 | 3.8052 | 13.9877 | 9.8684 | 14.37261 | 6.743 |
| 2026 Aug 09 17:57 | 2026 Aug 07 06:32:52 | 74.0373 | 0.00160 | 3.8052 | 13.9877 | 9.8684 | 14.37261 | 6.743 |
| 2026 Aug 08 17:57 | 2026 Aug 07 06:32:52 | 74.0373 | 0.00160 | 3.8052 | 13.9877 | 9.8684 | 14.37261 | 6.743 |
| 2026 Aug 07 17:57 | 2026 Aug 07 06:32:52 | 74.0373 | 0.00160 | 3.8052 | 13.9877 | 9.8684 | 14.37261 | 6.743 |
| 2026 Aug 06 17:57 | 2026 Aug 01 00:12:04 | 74.0376 | 0.00158 | 4.5735 | 27.2274 | 9.8684 | 14.37261 | 6.743 |
| 2026 Aug 05 17:56 | 2026 Aug 01 00:12:04 | 74.0376 | 0.00158 | 4.5735 | 27.2274 | 9.8684 | 14.37261 | 6.743 |
| 2026 Aug 04 17:57 | 2026 Aug 01 00:12:04 | 74.0376 | 0.00158 | 4.5735 | 27.2274 | 9.8684 | 14.37261 | 6.743 |
| 2026 Aug 03 17:56 | 2026 Aug 01 00:12:04 | 74.0376 | 0.00158 | 4.5735 | 27.2274 | 9.8684 | 14.37261 | 6.743 |
| 2026 Aug 02 17:57 | 2026 Aug 01 00:12:04 | 74.0376 | 0.00158 | 4.5735 | 27.2274 | 9.8684 | 14.37261 | 6.743 |
| 2026 Aug 01 17:57 | 2026 Aug 01 00:12:04 | 74.0376 | 0.00158 | 4.5735 | 27.2274 | 9.8684 | 14.37261 | 6.743 |
| 2026 Jul 31 17:56 | 2026 Jul 27 01:35:40 | 74.0378 | 0.00156 | 5.1795 | 37.9461 | 9.8684 | 14.37261 | 6.743 |
| 2026 Jul 30 17:57 | 2026 Jul 27 01:35:40 | 74.0378 | 0.00156 | 5.1795 | 37.9461 | 9.8684 | 14.37261 | 6.743 |
| 2026 Jul 29 17:57 | 2026 Jul 27 01:35:40 | 74.0378 | 0.00156 | 5.1795 | 37.9461 | 9.8684 | 14.37261 | 6.743 |
| 2026 Jul 28 17:57 | 2026 Jul 27 01:35:40 | 74.0378 | 0.00156 | 5.1795 | 37.9461 | 9.8684 | 14.37261 | 6.743 |