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 Dec 20 18:57 | 2025 Dec 20 10:53:02 | 74.0564 | 0.00154 | 23.0248 | 202.5561 | 231.3655 | 12.47241 | – |
| 2025 Dec 19 18:57 | 2025 Dec 12 04:35:48 | 74.0564 | 0.00156 | 23.7519 | 214.6261 | 231.3655 | 12.47241 | – |
| 2025 Dec 18 18:57 | 2025 Dec 12 04:35:48 | 74.0564 | 0.00156 | 23.7519 | 214.6261 | 231.3655 | 12.47241 | – |
| 2025 Dec 17 18:58 | 2025 Dec 12 04:35:48 | 74.0564 | 0.00156 | 23.7519 | 214.6261 | 231.3655 | 12.47241 | – |
| 2025 Dec 16 18:57 | 2025 Dec 12 04:35:48 | 74.0564 | 0.00156 | 23.7519 | 214.6261 | 231.3655 | 12.47241 | – |
| 2025 Dec 15 18:58 | 2025 Dec 12 04:35:48 | 74.0564 | 0.00156 | 23.7519 | 214.6261 | 231.3655 | 12.47241 | – |
| 2025 Dec 14 18:56 | 2025 Dec 12 04:35:48 | 74.0564 | 0.00156 | 23.7519 | 214.6261 | 231.3655 | 12.47241 | – |
| 2025 Dec 13 18:56 | 2025 Dec 12 04:35:48 | 74.0564 | 0.00156 | 23.7519 | 214.6261 | 231.3655 | 12.47241 | – |
| 2025 Dec 12 18:57 | 2025 Dec 12 04:35:48 | 74.0564 | 0.00156 | 23.7519 | 214.6261 | 231.3655 | 12.47241 | – |
| 2025 Dec 11 18:56 | 2025 Dec 07 01:10:52 | 74.0567 | 0.00157 | 0.2045 | 222.1322 | 231.3655 | 12.47241 | – |
| 2025 Dec 10 18:56 | 2025 Dec 07 01:10:52 | 74.0567 | 0.00157 | 0.2045 | 222.1322 | 231.3655 | 12.47241 | – |
| 2025 Dec 09 18:56 | 2025 Dec 07 01:10:52 | 74.0567 | 0.00157 | 0.2045 | 222.1322 | 231.3655 | 12.47241 | – |
| 2025 Dec 08 18:56 | 2025 Dec 07 01:10:52 | 74.0567 | 0.00157 | 0.2045 | 222.1322 | 231.3655 | 12.47241 | – |
| 2025 Dec 07 18:56 | 2025 Dec 07 01:10:52 | 74.0567 | 0.00157 | 0.2045 | 222.1322 | 231.3655 | 12.47241 | – |
| 2025 Dec 06 18:56 | 2025 Dec 02 11:53:28 | 74.0570 | 0.00157 | 0.6052 | 228.6675 | 231.3655 | 12.47241 | – |
| 2025 Dec 05 18:57 | 2025 Dec 02 11:53:28 | 74.0570 | 0.00157 | 0.6052 | 228.6675 | 231.3655 | 12.47241 | – |
| 2025 Dec 04 18:57 | 2025 Dec 02 11:53:28 | 74.0570 | 0.00157 | 0.6052 | 228.6675 | 231.3655 | 12.47241 | – |
| 2025 Dec 03 18:56 | 2025 Dec 02 11:53:28 | 74.0570 | 0.00157 | 0.6052 | 228.6675 | 231.3655 | 12.47241 | – |
| 2025 Dec 02 18:56 | 2025 Dec 02 11:53:28 | 74.0570 | 0.00157 | 0.6052 | 228.6675 | 231.3655 | 12.47241 | – |
| 2025 Nov 30 18:57 | 2025 Nov 25 06:25:13 | 74.0577 | 0.00158 | 1.2413 | 238.9421 | 231.3655 | 12.47241 | – |
| 2025 Nov 29 18:56 | 2025 Nov 25 06:25:13 | 74.0577 | 0.00158 | 1.2413 | 238.9421 | 231.3655 | 12.47241 | – |
| 2025 Nov 28 18:57 | 2025 Nov 25 06:25:13 | 74.0577 | 0.00158 | 1.2413 | 238.9421 | 231.3655 | 12.47241 | – |
| 2025 Nov 27 18:57 | 2025 Nov 25 06:25:13 | 74.0577 | 0.00158 | 1.2413 | 238.9421 | 231.3655 | 12.47241 | – |
| 2025 Nov 26 18:57 | 2025 Nov 25 06:25:13 | 74.0577 | 0.00158 | 1.2413 | 238.9421 | 231.3655 | 12.47241 | – |
| 2025 Nov 25 18:57 | 2025 Nov 25 06:25:13 | 74.0577 | 0.00158 | 1.2413 | 238.9421 | 231.3655 | 12.47241 | – |
| 2025 Nov 24 18:56 | 2025 Nov 20 07:04:17 | 74.0583 | 0.00158 | 1.6789 | 246.0375 | 231.3655 | 12.47241 | – |
| 2025 Nov 23 18:57 | 2025 Nov 20 07:04:17 | 74.0583 | 0.00158 | 1.6789 | 246.0375 | 231.3655 | 12.47241 | – |