Orbital elements of COSMOS 621
| Launched | 18 December 1973 |
| Flight ended | – |
| Launch site | Plesetsk Missile and Space Complex, Russia |
| Owner | Commonwealth of Independent States (former USSR) |
| NORAD ID | 6989 |
| 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 |
| 2024 Apr 26 17:54 | 2024 Apr 21 22:25:54 | 74.0277 | 0.00507 | 5.3446 | 316.5419 | 106.1631 | 12.54656 | – |
| 2024 Apr 25 17:55 | 2024 Apr 21 22:25:54 | 74.0277 | 0.00507 | 5.3446 | 316.5419 | 106.1631 | 12.54656 | – |
| 2024 Apr 24 17:53 | 2024 Apr 21 22:25:54 | 74.0277 | 0.00507 | 5.3446 | 316.5419 | 106.1631 | 12.54656 | – |
| 2024 Apr 23 17:53 | 2024 Apr 21 22:25:54 | 74.0277 | 0.00507 | 5.3446 | 316.5419 | 106.1631 | 12.54656 | – |
| 2024 Apr 22 17:52 | 2024 Apr 21 22:25:54 | 74.0277 | 0.00507 | 5.3446 | 316.5419 | 106.1631 | 12.54656 | – |
| 2024 Apr 21 17:53 | 2024 Apr 16 02:47:44 | 74.0266 | 0.00506 | 5.8646 | 325.2734 | 106.1631 | 12.54656 | – |
| 2024 Apr 20 17:52 | 2024 Apr 16 02:47:44 | 74.0266 | 0.00506 | 5.8646 | 325.2734 | 106.1631 | 12.54656 | – |
| 2024 Apr 19 17:53 | 2024 Apr 16 02:47:44 | 74.0266 | 0.00506 | 5.8646 | 325.2734 | 106.1631 | 12.54656 | – |
| 2024 Apr 18 17:57 | 2024 Apr 16 02:47:44 | 74.0266 | 0.00506 | 5.8646 | 325.2734 | 106.1631 | 12.54656 | – |
| 2024 Apr 17 17:53 | 2024 Apr 16 02:47:44 | 74.0266 | 0.00506 | 5.8646 | 325.2734 | 106.1631 | 12.54656 | – |
| 2024 Apr 16 17:53 | 2024 Apr 16 02:47:44 | 74.0266 | 0.00506 | 5.8646 | 325.2734 | 106.1631 | 12.54656 | – |
| 2024 Apr 15 17:54 | 2024 Apr 09 18:15:27 | 74.0258 | 0.00505 | 6.4328 | 334.8302 | 106.1631 | 12.54656 | – |
| 2024 Apr 14 17:53 | 2024 Apr 09 18:15:27 | 74.0258 | 0.00505 | 6.4328 | 334.8302 | 106.1631 | 12.54656 | – |
| 2024 Apr 13 17:53 | 2024 Apr 09 18:15:27 | 74.0258 | 0.00505 | 6.4328 | 334.8302 | 106.1631 | 12.54656 | – |
| 2024 Apr 12 17:53 | 2024 Apr 09 18:15:27 | 74.0258 | 0.00505 | 6.4328 | 334.8302 | 106.1631 | 12.54656 | – |
| 2024 Apr 11 17:54 | 2024 Apr 09 18:15:27 | 74.0258 | 0.00505 | 6.4328 | 334.8302 | 106.1631 | 12.54656 | – |
| 2024 Apr 10 17:56 | 2024 Apr 09 18:15:27 | 74.0258 | 0.00505 | 6.4328 | 334.8302 | 106.1631 | 12.54656 | – |
| 2024 Apr 09 17:56 | 2024 Apr 04 19:37:42 | 74.0254 | 0.00504 | 6.8746 | 342.2922 | 106.1631 | 12.54656 | – |
| 2024 Apr 08 17:55 | 2024 Apr 04 19:37:42 | 74.0254 | 0.00504 | 6.8746 | 342.2922 | 106.1631 | 12.54656 | – |
| 2024 Apr 07 17:53 | 2024 Apr 04 19:37:42 | 74.0254 | 0.00504 | 6.8746 | 342.2922 | 106.1631 | 12.54656 | – |
| 2024 Apr 06 17:58 | 2024 Apr 04 19:37:42 | 74.0254 | 0.00504 | 6.8746 | 342.2922 | 106.1631 | 12.54656 | – |
| 2024 Apr 05 17:53 | 2024 Apr 04 19:37:42 | 74.0254 | 0.00504 | 6.8746 | 342.2922 | 106.1631 | 12.54656 | – |
| 2024 Apr 04 17:56 | 2024 Mar 30 19:03:47 | 74.0256 | 0.00503 | 7.3237 | 349.8935 | 106.1631 | 12.54656 | – |
| 2024 Apr 03 17:53 | 2024 Mar 30 19:03:47 | 74.0256 | 0.00503 | 7.3237 | 349.8935 | 106.1631 | 12.54656 | – |
| 2024 Apr 02 17:52 | 2024 Mar 30 19:03:47 | 74.0256 | 0.00503 | 7.3237 | 349.8935 | 106.1631 | 12.54656 | – |
| 2024 Apr 01 17:52 | 2024 Mar 30 19:03:47 | 74.0256 | 0.00503 | 7.3237 | 349.8935 | 106.1631 | 12.54656 | – |
| 2024 Mar 31 17:52 | 2024 Mar 30 19:03:47 | 74.0256 | 0.00503 | 7.3237 | 349.8935 | 106.1631 | 12.54656 | – |
| 2024 Mar 30 18:52 | 2024 Mar 24 19:33:01 | 74.0261 | 0.00502 | 7.8582 | 358.9471 | 106.1631 | 12.54656 | – |