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 Jul 19 19:06 | 2026 Jul 16 06:08:26 | 74.0546 | 0.00442 | 10.4925 | 234.5092 | 191.6745 | 12.54564 | – |
| 2026 Jul 19 17:57 | 2026 Jul 16 06:08:26 | 74.0546 | 0.00442 | 10.4925 | 234.5092 | 191.6745 | 12.54564 | – |
| 2026 Jul 18 17:57 | 2026 Jul 16 06:08:26 | 74.0546 | 0.00442 | 10.4925 | 234.5092 | 191.6745 | 12.54564 | – |
| 2026 Jul 17 17:57 | 2026 Jul 16 06:08:26 | 74.0546 | 0.00442 | 10.4925 | 234.5092 | 191.6745 | 12.54564 | – |
| 2026 Jul 16 17:56 | 2026 Jul 16 06:08:26 | 74.0546 | 0.00442 | 10.4925 | 234.5092 | 191.6745 | 12.54564 | – |
| 2026 Jul 15 17:57 | 2026 Jul 10 08:33:31 | 74.0540 | 0.00443 | 11.0188 | 243.3833 | 191.6745 | 12.54564 | – |
| 2026 Jul 14 17:56 | 2026 Jul 10 08:33:31 | 74.0540 | 0.00443 | 11.0188 | 243.3833 | 191.6745 | 12.54564 | – |
| 2026 Jul 13 17:56 | 2026 Jul 10 08:33:31 | 74.0540 | 0.00443 | 11.0188 | 243.3833 | 191.6745 | 12.54564 | – |
| 2026 Jul 12 17:56 | 2026 Jul 10 08:33:31 | 74.0540 | 0.00443 | 11.0188 | 243.3833 | 191.6745 | 12.54564 | – |
| 2026 Jul 11 17:56 | 2026 Jul 10 08:33:31 | 74.0540 | 0.00443 | 11.0188 | 243.3833 | 191.6745 | 12.54564 | – |
| 2026 Jul 09 17:56 | 2026 Jul 04 17:13:54 | 74.0532 | 0.00443 | 11.5218 | 251.8616 | 191.6745 | 12.54564 | – |
| 2026 Jul 08 17:56 | 2026 Jul 04 17:13:54 | 74.0532 | 0.00443 | 11.5218 | 251.8616 | 191.6745 | 12.54564 | – |
| 2026 Jul 07 17:56 | 2026 Jul 04 17:13:54 | 74.0532 | 0.00443 | 11.5218 | 251.8616 | 191.6745 | 12.54564 | – |
| 2026 Jul 06 17:57 | 2026 Jul 04 17:13:54 | 74.0532 | 0.00443 | 11.5218 | 251.8616 | 191.6745 | 12.54564 | – |
| 2026 Jul 05 17:56 | 2026 Jul 04 17:13:54 | 74.0532 | 0.00443 | 11.5218 | 251.8616 | 191.6745 | 12.54564 | – |
| 2026 Jul 04 17:56 | 2026 Jun 29 10:38:25 | 74.0529 | 0.00443 | 11.9923 | 259.7509 | 191.6745 | 12.54564 | – |
| 2026 Jul 03 17:57 | 2026 Jun 29 10:38:25 | 74.0529 | 0.00443 | 11.9923 | 259.7509 | 191.6745 | 12.54564 | – |
| 2026 Jul 02 17:56 | 2026 Jun 29 10:38:25 | 74.0529 | 0.00443 | 11.9923 | 259.7509 | 191.6745 | 12.54564 | – |
| 2026 Jul 01 17:56 | 2026 Jun 29 10:38:25 | 74.0529 | 0.00443 | 11.9923 | 259.7509 | 191.6745 | 12.54564 | – |
| 2026 Jun 30 17:56 | 2026 Jun 29 10:38:25 | 74.0529 | 0.00443 | 11.9923 | 259.7509 | 191.6745 | 12.54564 | – |
| 2026 Jun 29 17:57 | 2026 Jun 29 10:38:25 | 74.0529 | 0.00443 | 11.9923 | 259.7509 | 191.6745 | 12.54564 | – |
| 2026 Jun 28 17:56 | 2026 Jun 22 09:57:24 | 74.0528 | 0.00444 | 12.6194 | 270.2952 | 191.6745 | 12.54564 | – |
| 2026 Jun 27 17:55 | 2026 Jun 22 09:57:24 | 74.0528 | 0.00444 | 12.6194 | 270.2952 | 191.6745 | 12.54564 | – |
| 2026 Jun 26 17:56 | 2026 Jun 22 09:57:24 | 74.0528 | 0.00444 | 12.6194 | 270.2952 | 191.6745 | 12.54564 | – |
| 2026 Jun 25 17:56 | 2026 Jun 22 09:57:24 | 74.0528 | 0.00444 | 12.6194 | 270.2952 | 191.6745 | 12.54564 | – |
| 2026 Jun 24 17:55 | 2026 Jun 22 09:57:24 | 74.0528 | 0.00444 | 12.6194 | 270.2952 | 191.6745 | 12.54564 | – |
| 2026 Jun 23 17:56 | 2026 Jun 22 09:57:24 | 74.0528 | 0.00444 | 12.6194 | 270.2952 | 191.6745 | 12.54564 | – |
| 2026 Jun 22 17:56 | 2026 Jun 17 13:31:35 | 74.0532 | 0.00444 | 13.0521 | 277.5635 | 191.6745 | 12.54564 | – |