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 Feb 04 18:56 | 2025 Feb 03 04:46:20 | 74.0317 | 0.00406 | 19.5196 | 144.6851 | 23.4522 | 12.57979 | – |
| 2025 Feb 03 22:25 | 2025 Feb 03 04:46:20 | 74.0317 | 0.00406 | 19.5196 | 144.6851 | 23.4522 | 12.57979 | – |
| 2025 Feb 03 18:53 | 2025 Jan 28 11:25:18 | 74.0328 | 0.00407 | 20.0342 | 153.5208 | 23.4522 | 12.57979 | – |
| 2025 Feb 01 18:54 | 2025 Jan 28 11:25:18 | 74.0328 | 0.00407 | 20.0342 | 153.5208 | 23.4522 | 12.57979 | – |
| 2025 Jan 31 18:54 | 2025 Jan 28 11:25:18 | 74.0328 | 0.00407 | 20.0342 | 153.5208 | 23.4522 | 12.57979 | – |
| 2025 Jan 30 18:57 | 2025 Jan 28 11:25:18 | 74.0328 | 0.00407 | 20.0342 | 153.5208 | 23.4522 | 12.57979 | – |
| 2025 Jan 29 18:53 | 2025 Jan 28 11:25:18 | 74.0328 | 0.00407 | 20.0342 | 153.5208 | 23.4522 | 12.57979 | – |
| 2025 Jan 28 18:53 | 2025 Jan 22 06:26:22 | 74.0333 | 0.00408 | 20.5922 | 163.1211 | 23.4522 | 12.57979 | – |
| 2025 Jan 27 18:54 | 2025 Jan 22 06:26:22 | 74.0333 | 0.00408 | 20.5922 | 163.1211 | 23.4522 | 12.57979 | – |
| 2025 Jan 26 18:53 | 2025 Jan 22 06:26:22 | 74.0333 | 0.00408 | 20.5922 | 163.1211 | 23.4522 | 12.57979 | – |
| 2025 Jan 25 18:53 | 2025 Jan 22 06:26:22 | 74.0333 | 0.00408 | 20.5922 | 163.1211 | 23.4522 | 12.57979 | – |
| 2025 Jan 24 18:53 | 2025 Jan 22 06:26:22 | 74.0333 | 0.00408 | 20.5922 | 163.1211 | 23.4522 | 12.57979 | – |
| 2025 Jan 23 18:54 | 2025 Jan 22 06:26:22 | 74.0333 | 0.00408 | 20.5922 | 163.1211 | 23.4522 | 12.57979 | – |
| 2025 Jan 22 18:54 | 2025 Jan 16 20:00:35 | 74.0333 | 0.00409 | 21.0808 | 171.4476 | 23.4522 | 12.57979 | – |
| 2025 Jan 21 18:54 | 2025 Jan 16 20:00:35 | 74.0333 | 0.00409 | 21.0808 | 171.4476 | 23.4522 | 12.57979 | – |
| 2025 Jan 20 20:43 | 2025 Jan 16 20:00:35 | 74.0333 | 0.00409 | 21.0808 | 171.4476 | 23.4522 | 12.57979 | – |
| 2025 Jan 19 18:53 | 2025 Jan 16 20:00:35 | 74.0333 | 0.00409 | 21.0808 | 171.4476 | 23.4522 | 12.57979 | – |
| 2025 Jan 18 18:54 | 2025 Jan 16 20:00:35 | 74.0333 | 0.00409 | 21.0808 | 171.4476 | 23.4522 | 12.57979 | – |
| 2025 Jan 17 19:00 | 2025 Jan 16 20:00:35 | 74.0333 | 0.00409 | 21.0808 | 171.4476 | 23.4522 | 12.57979 | – |
| 2025 Jan 16 18:53 | 2025 Jan 12 07:40:04 | 74.0332 | 0.00410 | 21.4867 | 178.3795 | 23.4522 | 12.57979 | – |
| 2025 Jan 15 18:54 | 2025 Jan 12 07:40:04 | 74.0332 | 0.00410 | 21.4867 | 178.3795 | 23.4522 | 12.57979 | – |
| 2025 Jan 14 18:56 | 2025 Jan 12 07:40:04 | 74.0332 | 0.00410 | 21.4867 | 178.3795 | 23.4522 | 12.57979 | – |
| 2025 Jan 13 18:56 | 2025 Jan 12 07:40:04 | 74.0332 | 0.00410 | 21.4867 | 178.3795 | 23.4522 | 12.57979 | – |
| 2025 Jan 12 18:55 | 2025 Jan 12 07:40:04 | 74.0332 | 0.00410 | 21.4867 | 178.3795 | 23.4522 | 12.57979 | – |
| 2025 Jan 11 18:54 | 2025 Jan 07 07:26:55 | 74.0329 | 0.00411 | 21.9370 | 186.0445 | 23.4522 | 12.57979 | – |
| 2025 Jan 10 19:20 | 2025 Jan 07 07:26:55 | 74.0329 | 0.00411 | 21.9370 | 186.0445 | 23.4522 | 12.57979 | – |
| 2025 Jan 09 18:54 | 2025 Jan 07 07:26:55 | 74.0329 | 0.00411 | 21.9370 | 186.0445 | 23.4522 | 12.57979 | – |
| 2025 Jan 08 18:53 | 2025 Jan 07 07:26:55 | 74.0329 | 0.00411 | 21.9370 | 186.0445 | 23.4522 | 12.57979 | – |