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 |
| 2025 Sep 15 17:56 | 2025 Sep 15 01:35:47 | 74.0528 | 0.00153 | 7.5072 | 341.9692 | 172.7640 | 12.47239 | – |
| 2025 Sep 12 17:57 | 2025 Sep 03 02:46:21 | 74.0548 | 0.00151 | 8.5589 | 359.5715 | 172.7640 | 12.47239 | – |
| 2025 Sep 11 17:57 | 2025 Sep 03 02:46:21 | 74.0548 | 0.00151 | 8.5589 | 359.5715 | 172.7640 | 12.47239 | – |
| 2025 Sep 10 17:56 | 2025 Sep 03 02:46:21 | 74.0548 | 0.00151 | 8.5589 | 359.5715 | 172.7640 | 12.47239 | – |
| 2025 Sep 08 17:57 | 2025 Sep 03 02:46:21 | 74.0548 | 0.00151 | 8.5589 | 359.5715 | 172.7640 | 12.47239 | – |
| 2025 Sep 07 17:56 | 2025 Sep 03 02:46:21 | 74.0548 | 0.00151 | 8.5589 | 359.5715 | 172.7640 | 12.47239 | – |
| 2025 Sep 06 20:41 | 2025 Sep 03 02:46:21 | 74.0548 | 0.00151 | 8.5589 | 359.5715 | 172.7640 | 12.47239 | – |
| 2025 Sep 03 17:57 | 2025 Sep 03 02:46:21 | 74.0548 | 0.00151 | 8.5589 | 359.5715 | 172.7640 | 12.47239 | – |
| 2025 Sep 02 17:56 | 2025 Aug 27 20:09:43 | 74.0556 | 0.00150 | 9.1111 | 8.8256 | 172.7640 | 12.47239 | – |
| 2025 Sep 01 17:56 | 2025 Aug 27 20:09:43 | 74.0556 | 0.00150 | 9.1111 | 8.8256 | 172.7640 | 12.47239 | – |
| 2025 Aug 31 17:56 | 2025 Aug 27 20:09:43 | 74.0556 | 0.00150 | 9.1111 | 8.8256 | 172.7640 | 12.47239 | – |
| 2025 Aug 30 17:56 | 2025 Aug 27 20:09:43 | 74.0556 | 0.00150 | 9.1111 | 8.8256 | 172.7640 | 12.47239 | – |
| 2025 Aug 29 17:56 | 2025 Aug 27 20:09:43 | 74.0556 | 0.00150 | 9.1111 | 8.8256 | 172.7640 | 12.47239 | – |
| 2025 Aug 28 17:57 | 2025 Aug 27 20:09:43 | 74.0556 | 0.00150 | 9.1111 | 8.8256 | 172.7640 | 12.47239 | – |
| 2025 Aug 27 17:56 | 2025 Aug 23 04:59:53 | 74.0560 | 0.00149 | 9.5186 | 15.8079 | 172.7640 | 12.47239 | – |
| 2025 Aug 26 17:56 | 2025 Aug 23 04:59:53 | 74.0560 | 0.00149 | 9.5186 | 15.8079 | 172.7640 | 12.47239 | – |
| 2025 Aug 25 17:56 | 2025 Aug 23 04:59:53 | 74.0560 | 0.00149 | 9.5186 | 15.8079 | 172.7640 | 12.47239 | – |
| 2025 Aug 24 17:56 | 2025 Aug 23 04:59:53 | 74.0560 | 0.00149 | 9.5186 | 15.8079 | 172.7640 | 12.47239 | – |
| 2025 Aug 23 17:56 | 2025 Aug 23 04:59:53 | 74.0560 | 0.00149 | 9.5186 | 15.8079 | 172.7640 | 12.47239 | – |
| 2025 Aug 22 17:56 | 2025 Aug 18 05:39:06 | 74.0563 | 0.00148 | 9.9562 | 23.2433 | 172.7640 | 12.47239 | – |