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 Mar 21 19:05 | 2026 Mar 20 10:19:07 | 74.0566 | 0.00432 | 21.0042 | 52.7457 | 120.4032 | 12.54562 | – |
| 2026 Mar 20 18:57 | 2026 Mar 20 10:19:07 | 74.0566 | 0.00432 | 21.0042 | 52.7457 | 120.4032 | 12.54562 | – |
| 2026 Mar 19 18:56 | 2026 Mar 15 14:36:57 | 74.0577 | 0.00431 | 21.4343 | 60.1532 | 120.4032 | 12.54562 | – |
| 2026 Mar 18 18:56 | 2026 Mar 15 14:36:57 | 74.0577 | 0.00431 | 21.4343 | 60.1532 | 120.4032 | 12.54562 | – |
| 2026 Mar 17 18:56 | 2026 Mar 15 14:36:57 | 74.0577 | 0.00431 | 21.4343 | 60.1532 | 120.4032 | 12.54562 | – |
| 2026 Mar 16 18:57 | 2026 Mar 15 14:36:57 | 74.0577 | 0.00431 | 21.4343 | 60.1532 | 120.4032 | 12.54562 | – |
| 2026 Mar 15 18:56 | 2026 Mar 15 14:36:57 | 74.0577 | 0.00431 | 21.4343 | 60.1532 | 120.4032 | 12.54562 | – |
| 2026 Mar 14 18:56 | 2026 Mar 10 11:06:21 | 74.0586 | 0.00430 | 21.8933 | 68.0456 | 120.4032 | 12.54562 | – |
| 2026 Mar 13 18:57 | 2026 Mar 10 11:06:21 | 74.0586 | 0.00430 | 21.8933 | 68.0456 | 120.4032 | 12.54562 | – |
| 2026 Mar 12 18:57 | 2026 Mar 10 11:06:21 | 74.0586 | 0.00430 | 21.8933 | 68.0456 | 120.4032 | 12.54562 | – |
| 2026 Mar 11 18:56 | 2026 Mar 10 11:06:21 | 74.0586 | 0.00430 | 21.8933 | 68.0456 | 120.4032 | 12.54562 | – |
| 2026 Mar 10 18:56 | 2026 Mar 10 11:06:21 | 74.0586 | 0.00430 | 21.8933 | 68.0456 | 120.4032 | 12.54562 | – |
| 2026 Mar 09 18:56 | 2026 Mar 04 11:16:37 | 74.0594 | 0.00430 | 22.4279 | 77.2982 | 120.4032 | 12.54562 | – |
| 2026 Mar 08 18:57 | 2026 Mar 04 11:16:37 | 74.0594 | 0.00430 | 22.4279 | 77.2982 | 120.4032 | 12.54562 | – |
| 2026 Mar 07 18:57 | 2026 Mar 04 11:16:37 | 74.0594 | 0.00430 | 22.4279 | 77.2982 | 120.4032 | 12.54562 | – |
| 2026 Mar 06 18:56 | 2026 Mar 04 11:16:37 | 74.0594 | 0.00430 | 22.4279 | 77.2982 | 120.4032 | 12.54562 | – |
| 2026 Mar 05 18:56 | 2026 Mar 04 11:16:37 | 74.0594 | 0.00430 | 22.4279 | 77.2982 | 120.4032 | 12.54562 | – |
| 2026 Mar 04 18:57 | 2026 Mar 04 11:16:37 | 74.0594 | 0.00430 | 22.4279 | 77.2982 | 120.4032 | 12.54562 | – |
| 2026 Mar 03 18:56 | 2026 Feb 26 13:58:17 | 74.0597 | 0.00429 | 22.9530 | 86.3722 | 120.4032 | 12.54562 | – |
| 2026 Mar 02 18:57 | 2026 Feb 26 13:58:17 | 74.0597 | 0.00429 | 22.9530 | 86.3722 | 120.4032 | 12.54562 | – |
| 2026 Mar 01 18:57 | 2026 Feb 26 13:58:17 | 74.0597 | 0.00429 | 22.9530 | 86.3722 | 120.4032 | 12.54562 | – |
| 2026 Feb 28 18:56 | 2026 Feb 26 13:58:17 | 74.0597 | 0.00429 | 22.9530 | 86.3722 | 120.4032 | 12.54562 | – |
| 2026 Feb 27 19:05 | 2026 Feb 26 13:58:17 | 74.0597 | 0.00429 | 22.9530 | 86.3722 | 120.4032 | 12.54562 | – |
| 2026 Feb 26 20:45 | 2026 Feb 26 13:58:17 | 74.0597 | 0.00429 | 22.9530 | 86.3722 | 120.4032 | 12.54562 | – |