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 May 11 17:56 | 2025 May 09 07:21:03 | 74.0380 | 0.00175 | 11.5830 | 247.3836 | 112.5464 | 14.37066 | 6.743 |
| 2025 May 10 17:56 | 2025 May 09 07:21:03 | 74.0380 | 0.00175 | 11.5830 | 247.3836 | 112.5464 | 14.37066 | 6.743 |
| 2025 May 09 17:57 | 2025 May 09 07:21:03 | 74.0380 | 0.00175 | 11.5830 | 247.3836 | 112.5464 | 14.37066 | 6.743 |
| 2025 May 08 17:56 | 2025 May 03 14:20:59 | 74.0389 | 0.00176 | 12.2827 | 258.5038 | 112.5464 | 14.37066 | 6.743 |
| 2025 May 07 17:56 | 2025 May 03 14:20:59 | 74.0389 | 0.00176 | 12.2827 | 258.5038 | 112.5464 | 14.37066 | 6.743 |
| 2025 May 06 17:57 | 2025 May 03 14:20:59 | 74.0389 | 0.00176 | 12.2827 | 258.5038 | 112.5464 | 14.37066 | 6.743 |
| 2025 May 05 17:56 | 2025 May 03 14:20:59 | 74.0389 | 0.00176 | 12.2827 | 258.5038 | 112.5464 | 14.37066 | 6.743 |
| 2025 May 04 17:57 | 2025 May 03 14:20:59 | 74.0389 | 0.00176 | 12.2827 | 258.5038 | 112.5464 | 14.37066 | 6.743 |
| 2025 May 03 17:57 | 2025 May 03 14:20:59 | 74.0389 | 0.00176 | 12.2827 | 258.5038 | 112.5464 | 14.37066 | 6.743 |
| 2025 May 01 17:56 | 2025 Apr 22 11:01:48 | 74.0398 | 0.00175 | 13.6478 | 280.2677 | 112.5464 | 14.37066 | 6.743 |
| 2025 Apr 30 17:56 | 2025 Apr 22 11:01:48 | 74.0398 | 0.00175 | 13.6478 | 280.2677 | 112.5464 | 14.37066 | 6.743 |
| 2025 Apr 29 17:57 | 2025 Apr 22 11:01:48 | 74.0398 | 0.00175 | 13.6478 | 280.2677 | 112.5464 | 14.37066 | 6.743 |
| 2025 Apr 27 17:56 | 2025 Apr 22 11:01:48 | 74.0398 | 0.00175 | 13.6478 | 280.2677 | 112.5464 | 14.37066 | 6.743 |
| 2025 Apr 26 17:57 | 2025 Apr 22 11:01:48 | 74.0398 | 0.00175 | 13.6478 | 280.2677 | 112.5464 | 14.37066 | 6.743 |
| 2025 Apr 25 17:56 | 2025 Apr 22 11:01:48 | 74.0398 | 0.00175 | 13.6478 | 280.2677 | 112.5464 | 14.37066 | 6.743 |
| 2025 Apr 24 17:56 | 2025 Apr 22 11:01:48 | 74.0398 | 0.00175 | 13.6478 | 280.2677 | 112.5464 | 14.37066 | 6.743 |
| 2025 Apr 23 17:57 | 2025 Apr 22 11:01:48 | 74.0398 | 0.00175 | 13.6478 | 280.2677 | 112.5464 | 14.37066 | 6.743 |
| 2025 Apr 22 17:56 | 2025 Apr 22 11:01:48 | 74.0398 | 0.00175 | 13.6478 | 280.2677 | 112.5464 | 14.37066 | 6.743 |
| 2025 Apr 21 17:57 | 2025 Apr 15 18:38:15 | 74.0395 | 0.00174 | 14.4669 | 293.2266 | 112.5464 | 14.37066 | 6.743 |
| 2025 Apr 20 17:56 | 2025 Apr 15 18:38:15 | 74.0395 | 0.00174 | 14.4669 | 293.2266 | 112.5464 | 14.37066 | 6.743 |
| 2025 Apr 19 17:56 | 2025 Apr 15 18:38:15 | 74.0395 | 0.00174 | 14.4669 | 293.2266 | 112.5464 | 14.37066 | 6.743 |
| 2025 Apr 18 17:57 | 2025 Apr 15 18:38:15 | 74.0395 | 0.00174 | 14.4669 | 293.2266 | 112.5464 | 14.37066 | 6.743 |
| 2025 Apr 17 17:56 | 2025 Apr 15 18:38:15 | 74.0395 | 0.00174 | 14.4669 | 293.2266 | 112.5464 | 14.37066 | 6.743 |
| 2025 Apr 16 17:57 | 2025 Apr 15 18:38:15 | 74.0395 | 0.00174 | 14.4669 | 293.2266 | 112.5464 | 14.37066 | 6.743 |
| 2025 Apr 15 17:56 | 2025 Apr 10 20:00:48 | 74.0390 | 0.00173 | 15.0726 | 302.9844 | 112.5464 | 14.37066 | 6.743 |
| 2025 Apr 14 17:56 | 2025 Apr 10 20:00:48 | 74.0390 | 0.00173 | 15.0726 | 302.9844 | 112.5464 | 14.37066 | 6.743 |