Orbital elements of COSMOS 1621
| Launched | 14 January 1985 |
| Flight ended | – |
| Launch site | Plesetsk Missile and Space Complex, Russia |
| Owner | Commonwealth of Independent States (former USSR) |
| NORAD ID | 15473 |
| 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 09 17:57 | 2025 May 08 23:48:21 | 82.6111 | 0.00118 | 22.2859 | 346.8098 | 171.6798 | 12.64480 | – |
| 2025 May 08 17:56 | 2025 May 03 13:59:19 | 82.6119 | 0.00121 | 22.5160 | 359.1895 | 171.6798 | 12.64480 | – |
| 2025 May 07 17:56 | 2025 May 03 13:59:19 | 82.6119 | 0.00121 | 22.5160 | 359.1895 | 171.6798 | 12.64480 | – |
| 2025 May 06 17:57 | 2025 May 03 13:59:19 | 82.6119 | 0.00121 | 22.5160 | 359.1895 | 171.6798 | 12.64480 | – |
| 2025 May 05 17:56 | 2025 May 03 13:59:19 | 82.6119 | 0.00121 | 22.5160 | 359.1895 | 171.6798 | 12.64480 | – |
| 2025 May 04 17:57 | 2025 May 03 13:59:19 | 82.6119 | 0.00121 | 22.5160 | 359.1895 | 171.6798 | 12.64480 | – |
| 2025 May 03 17:57 | 2025 May 03 13:59:19 | 82.6119 | 0.00121 | 22.5160 | 359.1895 | 171.6798 | 12.64480 | – |
| 2025 May 01 17:56 | 2025 Apr 22 01:16:33 | 82.6139 | 0.00126 | 23.0062 | 25.0561 | 171.6798 | 12.64480 | – |
| 2025 Apr 30 17:56 | 2025 Apr 22 01:16:33 | 82.6139 | 0.00126 | 23.0062 | 25.0561 | 171.6798 | 12.64480 | – |
| 2025 Apr 29 17:57 | 2025 Apr 22 01:16:33 | 82.6139 | 0.00126 | 23.0062 | 25.0561 | 171.6798 | 12.64480 | – |
| 2025 Apr 27 17:56 | 2025 Apr 22 01:16:33 | 82.6139 | 0.00126 | 23.0062 | 25.0561 | 171.6798 | 12.64480 | – |
| 2025 Apr 26 17:57 | 2025 Apr 22 01:16:33 | 82.6139 | 0.00126 | 23.0062 | 25.0561 | 171.6798 | 12.64480 | – |
| 2025 Apr 25 17:56 | 2025 Apr 22 01:16:33 | 82.6139 | 0.00126 | 23.0062 | 25.0561 | 171.6798 | 12.64480 | – |
| 2025 Apr 24 17:56 | 2025 Apr 22 01:16:33 | 82.6139 | 0.00126 | 23.0062 | 25.0561 | 171.6798 | 12.64480 | – |
| 2025 Apr 23 17:57 | 2025 Apr 22 01:16:33 | 82.6139 | 0.00126 | 23.0062 | 25.0561 | 171.6798 | 12.64480 | – |
| 2025 Apr 22 17:56 | 2025 Apr 22 01:16:33 | 82.6139 | 0.00126 | 23.0062 | 25.0561 | 171.6798 | 12.64480 | – |
| 2025 Apr 21 17:57 | 2025 Apr 16 04:44:07 | 82.6150 | 0.00128 | 23.2552 | 37.7403 | 171.6798 | 12.64480 | – |
| 2025 Apr 20 17:56 | 2025 Apr 16 04:44:07 | 82.6150 | 0.00128 | 23.2552 | 37.7403 | 171.6798 | 12.64480 | – |
| 2025 Apr 19 17:56 | 2025 Apr 16 04:44:07 | 82.6150 | 0.00128 | 23.2552 | 37.7403 | 171.6798 | 12.64480 | – |
| 2025 Apr 18 17:57 | 2025 Apr 16 04:44:07 | 82.6150 | 0.00128 | 23.2552 | 37.7403 | 171.6798 | 12.64480 | – |
| 2025 Apr 17 17:56 | 2025 Apr 16 04:44:07 | 82.6150 | 0.00128 | 23.2552 | 37.7403 | 171.6798 | 12.64480 | – |
| 2025 Apr 16 17:57 | 2025 Apr 16 04:44:07 | 82.6150 | 0.00128 | 23.2552 | 37.7403 | 171.6798 | 12.64480 | – |
| 2025 Apr 15 17:56 | 2025 Apr 10 19:19:29 | 82.6161 | 0.00130 | 23.4844 | 49.2461 | 171.6798 | 12.64480 | – |
| 2025 Apr 14 17:56 | 2025 Apr 10 19:19:29 | 82.6161 | 0.00130 | 23.4844 | 49.2461 | 171.6798 | 12.64480 | – |