Orbital elements of COSMOS 1641
| Launched | 20 March 1985 |
| Flight ended | – |
| Launch site | Plesetsk Missile and Space Complex, Russia |
| Owner | Commonwealth of Independent States (former USSR) |
| NORAD ID | 15623 |
| 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 |
| 2026 Feb 26 20:45 | 2026 Feb 26 13:58:17 | 74.0597 | 0.00429 | 22.9530 | 86.3722 | 86.1254 | 12.54561 | – |
| 2026 Feb 05 18:58 | 2026 Feb 02 09:50:15 | 74.0567 | 0.00429 | 1.1092 | 123.7401 | 86.1254 | 12.54561 | – |
| 2026 Feb 04 18:57 | 2026 Feb 02 09:50:15 | 74.0567 | 0.00429 | 1.1092 | 123.7401 | 86.1254 | 12.54561 | – |
| 2026 Feb 03 18:56 | 2026 Feb 02 09:50:15 | 74.0567 | 0.00429 | 1.1092 | 123.7401 | 86.1254 | 12.54561 | – |
| 2026 Feb 02 18:56 | 2026 Feb 02 09:50:15 | 74.0567 | 0.00429 | 1.1092 | 123.7401 | 86.1254 | 12.54561 | – |
| 2026 Feb 01 18:56 | 2026 Jan 27 18:21:05 | 74.0559 | 0.00430 | 1.6129 | 132.4327 | 86.1254 | 12.54561 | – |
| 2026 Jan 31 18:56 | 2026 Jan 27 18:21:05 | 74.0559 | 0.00430 | 1.6129 | 132.4327 | 86.1254 | 12.54561 | – |
| 2026 Jan 30 18:57 | 2026 Jan 27 18:21:05 | 74.0559 | 0.00430 | 1.6129 | 132.4327 | 86.1254 | 12.54561 | – |