Orbital elements of COSMOS 1635
| Launched | 20 March 1985 |
| Flight ended | – |
| Launch site | Plesetsk Missile and Space Complex, Russia |
| Owner | Commonwealth of Independent States (former USSR) |
| NORAD ID | 15617 |
| 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 May 09 17:57 | 2025 May 09 06:08:47 | 74.0564 | 0.00240 | 4.4271 | 38.3410 | 71.9306 | 12.43251 | – |
| 2025 May 08 17:56 | 2025 May 03 07:15:42 | 74.0553 | 0.00239 | 4.9471 | 47.2323 | 71.9306 | 12.43251 | – |
| 2025 May 07 17:56 | 2025 May 03 07:15:42 | 74.0553 | 0.00239 | 4.9471 | 47.2323 | 71.9306 | 12.43251 | – |
| 2025 May 06 17:57 | 2025 May 03 07:15:42 | 74.0553 | 0.00239 | 4.9471 | 47.2323 | 71.9306 | 12.43251 | – |
| 2025 May 05 17:56 | 2025 May 03 07:15:42 | 74.0553 | 0.00239 | 4.9471 | 47.2323 | 71.9306 | 12.43251 | – |
| 2025 May 04 17:57 | 2025 May 03 07:15:42 | 74.0553 | 0.00239 | 4.9471 | 47.2323 | 71.9306 | 12.43251 | – |
| 2025 May 03 17:57 | 2025 May 03 07:15:42 | 74.0553 | 0.00239 | 4.9471 | 47.2323 | 71.9306 | 12.43251 | – |
| 2025 May 01 17:56 | 2025 Apr 22 08:37:30 | 74.0531 | 0.00238 | 5.9030 | 63.7980 | 71.9306 | 12.43251 | – |
| 2025 Apr 30 17:56 | 2025 Apr 22 08:37:30 | 74.0531 | 0.00238 | 5.9030 | 63.7980 | 71.9306 | 12.43251 | – |
| 2025 Apr 29 17:57 | 2025 Apr 22 08:37:30 | 74.0531 | 0.00238 | 5.9030 | 63.7980 | 71.9306 | 12.43251 | – |
| 2025 Apr 27 17:56 | 2025 Apr 22 08:37:30 | 74.0531 | 0.00238 | 5.9030 | 63.7980 | 71.9306 | 12.43251 | – |
| 2025 Apr 26 17:57 | 2025 Apr 22 08:37:30 | 74.0531 | 0.00238 | 5.9030 | 63.7980 | 71.9306 | 12.43251 | – |
| 2025 Apr 25 17:56 | 2025 Apr 22 08:37:30 | 74.0531 | 0.00238 | 5.9030 | 63.7980 | 71.9306 | 12.43251 | – |
| 2025 Apr 24 17:56 | 2025 Apr 22 08:37:30 | 74.0531 | 0.00238 | 5.9030 | 63.7980 | 71.9306 | 12.43251 | – |
| 2025 Apr 23 17:57 | 2025 Apr 22 08:37:30 | 74.0531 | 0.00238 | 5.9030 | 63.7980 | 71.9306 | 12.43251 | – |
| 2025 Apr 22 17:56 | 2025 Apr 22 08:37:30 | 74.0531 | 0.00238 | 5.9030 | 63.7980 | 71.9306 | 12.43251 | – |
| 2025 Apr 21 17:57 | 2025 Apr 16 05:19:53 | 74.0521 | 0.00237 | 6.4391 | 73.1544 | 71.9306 | 12.43251 | – |
| 2025 Apr 20 17:56 | 2025 Apr 16 05:19:53 | 74.0521 | 0.00237 | 6.4391 | 73.1544 | 71.9306 | 12.43251 | – |
| 2025 Apr 19 17:56 | 2025 Apr 16 05:19:53 | 74.0521 | 0.00237 | 6.4391 | 73.1544 | 71.9306 | 12.43251 | – |
| 2025 Apr 18 17:57 | 2025 Apr 16 05:19:53 | 74.0521 | 0.00237 | 6.4391 | 73.1544 | 71.9306 | 12.43251 | – |
| 2025 Apr 17 17:56 | 2025 Apr 16 05:19:53 | 74.0521 | 0.00237 | 6.4391 | 73.1544 | 71.9306 | 12.43251 | – |
| 2025 Apr 16 17:57 | 2025 Apr 16 05:19:53 | 74.0521 | 0.00237 | 6.4391 | 73.1544 | 71.9306 | 12.43251 | – |
| 2025 Apr 15 17:56 | 2025 Apr 11 12:16:48 | 74.0517 | 0.00237 | 6.8506 | 80.3416 | 71.9306 | 12.43251 | – |
| 2025 Apr 14 17:56 | 2025 Apr 11 12:16:48 | 74.0517 | 0.00237 | 6.8506 | 80.3416 | 71.9306 | 12.43251 | – |