Orbital elements of COSMOS 1637
| Launched | 20 March 1985 |
| Flight ended | – |
| Launch site | Plesetsk Missile and Space Complex, Russia |
| Owner | Commonwealth of Independent States (former USSR) |
| NORAD ID | 15619 |
| 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 13:02:41 | 74.0517 | 0.00146 | 17.0329 | 97.8499 | 323.0730 | 12.47242 | – |
| 2026 Feb 05 18:58 | 2026 Feb 02 09:56:46 | 74.0558 | 0.00147 | 19.1564 | 135.5356 | 323.0730 | 12.47242 | – |
| 2026 Feb 04 18:57 | 2026 Feb 02 09:56:46 | 74.0558 | 0.00147 | 19.1564 | 135.5356 | 323.0730 | 12.47242 | – |
| 2026 Feb 03 18:56 | 2026 Feb 02 09:56:46 | 74.0558 | 0.00147 | 19.1564 | 135.5356 | 323.0730 | 12.47242 | – |
| 2026 Feb 02 18:56 | 2026 Feb 02 09:56:46 | 74.0558 | 0.00147 | 19.1564 | 135.5356 | 323.0730 | 12.47242 | – |
| 2026 Feb 01 18:56 | 2026 Jan 27 16:48:00 | 74.0568 | 0.00148 | 19.6592 | 144.4383 | 323.0730 | 12.47242 | – |
| 2026 Jan 31 18:56 | 2026 Jan 27 16:48:00 | 74.0568 | 0.00148 | 19.6592 | 144.4383 | 323.0730 | 12.47242 | – |
| 2026 Jan 30 18:57 | 2026 Jan 27 16:48:00 | 74.0568 | 0.00148 | 19.6592 | 144.4383 | 323.0730 | 12.47242 | – |