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 |
| 2025 Dec 24 18:56 | 2025 Dec 20 12:01:49 | 74.0386 | 0.00155 | 7.9773 | 138.9619 | 221.2707 | 14.37173 | 6.743 |
| 2025 Dec 23 18:56 | 2025 Dec 20 12:01:49 | 74.0386 | 0.00155 | 7.9773 | 138.9619 | 221.2707 | 14.37173 | 6.743 |
| 2025 Dec 22 18:57 | 2025 Dec 20 12:01:49 | 74.0386 | 0.00155 | 7.9773 | 138.9619 | 221.2707 | 14.37173 | 6.743 |
| 2025 Dec 21 18:57 | 2025 Dec 20 12:01:49 | 74.0386 | 0.00155 | 7.9773 | 138.9619 | 221.2707 | 14.37173 | 6.743 |
| 2025 Dec 20 18:57 | 2025 Dec 20 12:01:49 | 74.0386 | 0.00155 | 7.9773 | 138.9619 | 221.2707 | 14.37173 | 6.743 |
| 2025 Dec 19 18:57 | 2025 Dec 11 20:52:23 | 74.0375 | 0.00158 | 9.0355 | 157.8708 | 221.2707 | 14.37173 | 6.743 |
| 2025 Dec 18 18:57 | 2025 Dec 11 20:52:23 | 74.0375 | 0.00158 | 9.0355 | 157.8708 | 221.2707 | 14.37173 | 6.743 |
| 2025 Dec 17 18:58 | 2025 Dec 11 20:52:23 | 74.0375 | 0.00158 | 9.0355 | 157.8708 | 221.2707 | 14.37173 | 6.743 |
| 2025 Dec 16 18:57 | 2025 Dec 11 20:52:23 | 74.0375 | 0.00158 | 9.0355 | 157.8708 | 221.2707 | 14.37173 | 6.743 |
| 2025 Dec 15 18:58 | 2025 Dec 11 20:52:23 | 74.0375 | 0.00158 | 9.0355 | 157.8708 | 221.2707 | 14.37173 | 6.743 |
| 2025 Dec 14 18:56 | 2025 Dec 11 20:52:23 | 74.0375 | 0.00158 | 9.0355 | 157.8708 | 221.2707 | 14.37173 | 6.743 |
| 2025 Dec 13 18:56 | 2025 Dec 11 20:52:23 | 74.0375 | 0.00158 | 9.0355 | 157.8708 | 221.2707 | 14.37173 | 6.743 |
| 2025 Dec 12 18:57 | 2025 Dec 11 20:52:23 | 74.0375 | 0.00158 | 9.0355 | 157.8708 | 221.2707 | 14.37173 | 6.743 |
| 2025 Dec 11 18:56 | 2025 Dec 07 04:56:28 | 74.0372 | 0.00160 | 9.6073 | 167.7754 | 221.2707 | 14.37173 | 6.743 |
| 2025 Dec 10 18:56 | 2025 Dec 07 04:56:28 | 74.0372 | 0.00160 | 9.6073 | 167.7754 | 221.2707 | 14.37173 | 6.743 |
| 2025 Dec 09 18:56 | 2025 Dec 07 04:56:28 | 74.0372 | 0.00160 | 9.6073 | 167.7754 | 221.2707 | 14.37173 | 6.743 |
| 2025 Dec 08 18:56 | 2025 Dec 07 04:56:28 | 74.0372 | 0.00160 | 9.6073 | 167.7754 | 221.2707 | 14.37173 | 6.743 |
| 2025 Dec 07 18:56 | 2025 Dec 07 04:56:28 | 74.0372 | 0.00160 | 9.6073 | 167.7754 | 221.2707 | 14.37173 | 6.743 |
| 2025 Dec 06 18:56 | 2025 Dec 02 11:20:18 | 74.0365 | 0.00163 | 10.1876 | 177.4228 | 221.2707 | 14.37173 | 6.743 |
| 2025 Dec 05 18:57 | 2025 Dec 02 11:20:18 | 74.0365 | 0.00163 | 10.1876 | 177.4228 | 221.2707 | 14.37173 | 6.743 |
| 2025 Dec 04 18:57 | 2025 Dec 02 11:20:18 | 74.0365 | 0.00163 | 10.1876 | 177.4228 | 221.2707 | 14.37173 | 6.743 |
| 2025 Dec 03 18:56 | 2025 Dec 02 11:20:18 | 74.0365 | 0.00163 | 10.1876 | 177.4228 | 221.2707 | 14.37173 | 6.743 |
| 2025 Dec 02 18:56 | 2025 Dec 02 11:20:18 | 74.0365 | 0.00163 | 10.1876 | 177.4228 | 221.2707 | 14.37173 | 6.743 |
| 2025 Nov 30 18:57 | 2025 Nov 25 07:15:46 | 74.0365 | 0.00166 | 11.0666 | 192.1054 | 221.2707 | 14.37173 | 6.743 |
| 2025 Nov 29 18:56 | 2025 Nov 25 07:15:46 | 74.0365 | 0.00166 | 11.0666 | 192.1054 | 221.2707 | 14.37173 | 6.743 |
| 2025 Nov 28 18:57 | 2025 Nov 25 07:15:46 | 74.0365 | 0.00166 | 11.0666 | 192.1054 | 221.2707 | 14.37173 | 6.743 |
| 2025 Nov 27 18:57 | 2025 Nov 25 07:15:46 | 74.0365 | 0.00166 | 11.0666 | 192.1054 | 221.2707 | 14.37173 | 6.743 |