Orbital elements of COSMOS 921
| Launched | 23 June 1977 |
| Flight ended | – |
| Launch site | Plesetsk Missile and Space Complex, Russia |
| Owner | Commonwealth of Independent States (former USSR) |
| NORAD ID | 10095 |
| 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 Sep 15 17:56 | 2025 Sep 15 04:08:06 | 75.8330 | 0.00364 | 21.5028 | 332.1749 | 27.7495 | 14.96078 | 6.743 |
| 2025 Sep 12 17:57 | 2025 Sep 03 06:27:01 | 75.8346 | 0.00360 | 22.9291 | 2.7038 | 27.7495 | 14.96078 | 6.743 |
| 2025 Sep 11 17:57 | 2025 Sep 03 06:27:01 | 75.8346 | 0.00360 | 22.9291 | 2.7038 | 27.7495 | 14.96078 | 6.743 |
| 2025 Sep 10 17:56 | 2025 Sep 03 06:27:01 | 75.8346 | 0.00360 | 22.9291 | 2.7038 | 27.7495 | 14.96078 | 6.743 |
| 2025 Sep 08 17:57 | 2025 Sep 03 06:27:01 | 75.8346 | 0.00360 | 22.9291 | 2.7038 | 27.7495 | 14.96078 | 6.743 |
| 2025 Sep 07 17:56 | 2025 Sep 03 06:27:01 | 75.8346 | 0.00360 | 22.9291 | 2.7038 | 27.7495 | 14.96078 | 6.743 |
| 2025 Sep 06 20:41 | 2025 Sep 03 06:27:01 | 75.8346 | 0.00360 | 22.9291 | 2.7038 | 27.7495 | 14.96078 | 6.743 |
| 2025 Sep 03 17:57 | 2025 Sep 03 06:27:01 | 75.8346 | 0.00360 | 22.9291 | 2.7038 | 27.7495 | 14.96078 | 6.743 |
| 2025 Sep 02 17:56 | 2025 Aug 27 20:22:14 | 75.8343 | 0.00358 | 23.6982 | 19.3664 | 27.7495 | 14.96078 | 6.743 |
| 2025 Sep 01 17:56 | 2025 Aug 27 20:22:14 | 75.8343 | 0.00358 | 23.6982 | 19.3664 | 27.7495 | 14.96078 | 6.743 |
| 2025 Aug 31 17:56 | 2025 Aug 27 20:22:14 | 75.8343 | 0.00358 | 23.6982 | 19.3664 | 27.7495 | 14.96078 | 6.743 |
| 2025 Aug 30 17:56 | 2025 Aug 27 20:22:14 | 75.8343 | 0.00358 | 23.6982 | 19.3664 | 27.7495 | 14.96078 | 6.743 |
| 2025 Aug 29 17:56 | 2025 Aug 27 20:22:14 | 75.8343 | 0.00358 | 23.6982 | 19.3664 | 27.7495 | 14.96078 | 6.743 |
| 2025 Aug 28 17:57 | 2025 Aug 27 20:22:14 | 75.8343 | 0.00358 | 23.6982 | 19.3664 | 27.7495 | 14.96078 | 6.743 |
| 2025 Aug 27 17:56 | 2025 Aug 20 19:50:38 | 75.8334 | 0.00356 | 0.5395 | 37.6593 | 27.7495 | 14.96078 | 6.743 |
| 2025 Aug 26 17:56 | 2025 Aug 20 19:50:38 | 75.8334 | 0.00356 | 0.5395 | 37.6593 | 27.7495 | 14.96078 | 6.743 |
| 2025 Aug 25 17:56 | 2025 Aug 20 19:50:38 | 75.8334 | 0.00356 | 0.5395 | 37.6593 | 27.7495 | 14.96078 | 6.743 |
| 2025 Aug 24 17:56 | 2025 Aug 20 19:50:38 | 75.8334 | 0.00356 | 0.5395 | 37.6593 | 27.7495 | 14.96078 | 6.743 |
| 2025 Aug 23 17:56 | 2025 Aug 20 19:50:38 | 75.8334 | 0.00356 | 0.5395 | 37.6593 | 27.7495 | 14.96078 | 6.743 |
| 2025 Aug 22 17:56 | 2025 Aug 17 21:13:21 | 75.8330 | 0.00355 | 0.8920 | 45.3676 | 27.7495 | 14.96078 | 6.743 |
| 2025 Aug 20 17:56 | 2025 Aug 17 21:13:21 | 75.8330 | 0.00355 | 0.8920 | 45.3676 | 27.7495 | 14.96078 | 6.743 |
| 2025 Aug 19 17:56 | 2025 Aug 17 21:13:21 | 75.8330 | 0.00355 | 0.8920 | 45.3676 | 27.7495 | 14.96078 | 6.743 |