Orbital elements of COSMOS 977
| Launched | 9 January 1978 |
| Flight ended | – |
| Launch site | Plesetsk Missile and Space Complex, Russia |
| Owner | Commonwealth of Independent States (former USSR) |
| NORAD ID | 10584 |
| 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 17 18:58 | 2025 Dec 12 03:34:38 | 74.0305 | 0.00405 | 15.4708 | 26.8587 | 126.3137 | 12.57987 | – |
| 2025 Dec 16 18:57 | 2025 Dec 12 03:34:38 | 74.0305 | 0.00405 | 15.4708 | 26.8587 | 126.3137 | 12.57987 | – |
| 2025 Dec 15 18:58 | 2025 Dec 12 03:34:38 | 74.0305 | 0.00405 | 15.4708 | 26.8587 | 126.3137 | 12.57987 | – |
| 2025 Dec 14 18:56 | 2025 Dec 12 03:34:38 | 74.0305 | 0.00405 | 15.4708 | 26.8587 | 126.3137 | 12.57987 | – |
| 2025 Dec 13 18:56 | 2025 Dec 12 03:34:38 | 74.0305 | 0.00405 | 15.4708 | 26.8587 | 126.3137 | 12.57987 | – |
| 2025 Dec 12 18:57 | 2025 Dec 12 03:34:38 | 74.0305 | 0.00405 | 15.4708 | 26.8587 | 126.3137 | 12.57987 | – |
| 2025 Dec 11 18:56 | 2025 Dec 07 03:25:56 | 74.0310 | 0.00404 | 15.9209 | 34.5071 | 126.3137 | 12.57987 | – |
| 2025 Dec 10 18:56 | 2025 Dec 07 03:25:56 | 74.0310 | 0.00404 | 15.9209 | 34.5071 | 126.3137 | 12.57987 | – |
| 2025 Dec 09 18:56 | 2025 Dec 07 03:25:56 | 74.0310 | 0.00404 | 15.9209 | 34.5071 | 126.3137 | 12.57987 | – |
| 2025 Dec 08 18:56 | 2025 Dec 07 03:25:56 | 74.0310 | 0.00404 | 15.9209 | 34.5071 | 126.3137 | 12.57987 | – |
| 2025 Dec 07 18:56 | 2025 Dec 07 03:25:56 | 74.0310 | 0.00404 | 15.9209 | 34.5071 | 126.3137 | 12.57987 | – |
| 2025 Dec 06 18:56 | 2025 Dec 02 12:45:23 | 74.0309 | 0.00403 | 16.3355 | 41.6357 | 126.3137 | 12.57987 | – |
| 2025 Dec 05 18:57 | 2025 Dec 02 12:45:23 | 74.0309 | 0.00403 | 16.3355 | 41.6357 | 126.3137 | 12.57987 | – |
| 2025 Dec 04 18:57 | 2025 Dec 02 12:45:23 | 74.0309 | 0.00403 | 16.3355 | 41.6357 | 126.3137 | 12.57987 | – |
| 2025 Dec 03 18:56 | 2025 Dec 02 12:45:23 | 74.0309 | 0.00403 | 16.3355 | 41.6357 | 126.3137 | 12.57987 | – |
| 2025 Dec 02 18:56 | 2025 Dec 02 12:45:23 | 74.0309 | 0.00403 | 16.3355 | 41.6357 | 126.3137 | 12.57987 | – |
| 2025 Nov 30 18:57 | 2025 Nov 25 07:04:10 | 74.0308 | 0.00403 | 16.9861 | 52.8633 | 126.3137 | 12.57987 | – |
| 2025 Nov 29 18:56 | 2025 Nov 25 07:04:10 | 74.0308 | 0.00403 | 16.9861 | 52.8633 | 126.3137 | 12.57987 | – |
| 2025 Nov 28 18:57 | 2025 Nov 25 07:04:10 | 74.0308 | 0.00403 | 16.9861 | 52.8633 | 126.3137 | 12.57987 | – |
| 2025 Nov 27 18:57 | 2025 Nov 25 07:04:10 | 74.0308 | 0.00403 | 16.9861 | 52.8633 | 126.3137 | 12.57987 | – |
| 2025 Nov 26 18:57 | 2025 Nov 25 07:04:10 | 74.0308 | 0.00403 | 16.9861 | 52.8633 | 126.3137 | 12.57987 | – |
| 2025 Nov 25 18:57 | 2025 Nov 25 07:04:10 | 74.0308 | 0.00403 | 16.9861 | 52.8633 | 126.3137 | 12.57987 | – |
| 2025 Nov 24 18:56 | 2025 Nov 20 06:44:48 | 74.0302 | 0.00401 | 17.4369 | 60.5564 | 126.3137 | 12.57987 | – |
| 2025 Nov 23 18:57 | 2025 Nov 20 06:44:48 | 74.0302 | 0.00401 | 17.4369 | 60.5564 | 126.3137 | 12.57987 | – |
| 2025 Nov 21 18:57 | 2025 Nov 20 06:44:48 | 74.0302 | 0.00401 | 17.4369 | 60.5564 | 126.3137 | 12.57987 | – |
| 2025 Nov 20 18:56 | 2025 Nov 20 06:44:48 | 74.0302 | 0.00401 | 17.4369 | 60.5564 | 126.3137 | 12.57987 | – |