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 |
| 2026 Apr 27 17:58 | 2026 Apr 24 08:38:07 | 74.0561 | 0.00248 | 21.8477 | 238.6256 | 314.9379 | 12.43257 | – |
| 2026 Apr 26 17:58 | 2026 Apr 24 08:38:07 | 74.0561 | 0.00248 | 21.8477 | 238.6256 | 314.9379 | 12.43257 | – |
| 2026 Apr 25 17:58 | 2026 Apr 24 08:38:07 | 74.0561 | 0.00248 | 21.8477 | 238.6256 | 314.9379 | 12.43257 | – |
| 2026 Apr 24 17:59 | 2026 Apr 24 08:38:07 | 74.0561 | 0.00248 | 21.8477 | 238.6256 | 314.9379 | 12.43257 | – |
| 2026 Apr 23 17:57 | 2026 Apr 19 08:48:28 | 74.0571 | 0.00249 | 22.2838 | 245.9400 | 314.9379 | 12.43257 | – |
| 2026 Apr 22 17:57 | 2026 Apr 19 08:48:28 | 74.0571 | 0.00249 | 22.2838 | 245.9400 | 314.9379 | 12.43257 | – |
| 2026 Apr 21 17:57 | 2026 Apr 19 08:48:28 | 74.0571 | 0.00249 | 22.2838 | 245.9400 | 314.9379 | 12.43257 | – |
| 2026 Apr 20 17:57 | 2026 Apr 19 08:48:28 | 74.0571 | 0.00249 | 22.2838 | 245.9400 | 314.9379 | 12.43257 | – |
| 2026 Apr 19 17:58 | 2026 Apr 19 08:48:28 | 74.0571 | 0.00249 | 22.2838 | 245.9400 | 314.9379 | 12.43257 | – |
| 2026 Apr 18 17:56 | 2026 Apr 13 02:03:52 | 74.0582 | 0.00249 | 22.8324 | 255.1347 | 314.9379 | 12.43257 | – |
| 2026 Apr 16 17:57 | 2026 Apr 13 02:03:52 | 74.0582 | 0.00249 | 22.8324 | 255.1347 | 314.9379 | 12.43257 | – |
| 2026 Apr 14 17:57 | 2026 Apr 13 02:03:52 | 74.0582 | 0.00249 | 22.8324 | 255.1347 | 314.9379 | 12.43257 | – |
| 2026 Apr 13 17:57 | 2026 Apr 13 02:03:52 | 74.0582 | 0.00249 | 22.8324 | 255.1347 | 314.9379 | 12.43257 | – |
| 2026 Apr 12 17:57 | 2026 Apr 08 10:10:53 | 74.0591 | 0.00250 | 23.2395 | 261.9180 | 314.9379 | 12.43257 | – |
| 2026 Apr 11 17:57 | 2026 Apr 08 10:10:53 | 74.0591 | 0.00250 | 23.2395 | 261.9180 | 314.9379 | 12.43257 | – |
| 2026 Apr 10 17:58 | 2026 Apr 08 10:10:53 | 74.0591 | 0.00250 | 23.2395 | 261.9180 | 314.9379 | 12.43257 | – |
| 2026 Apr 09 18:01 | 2026 Apr 08 10:10:53 | 74.0591 | 0.00250 | 23.2395 | 261.9180 | 314.9379 | 12.43257 | – |
| 2026 Apr 08 17:57 | 2026 Apr 08 10:10:53 | 74.0591 | 0.00250 | 23.2395 | 261.9180 | 314.9379 | 12.43257 | – |
| 2026 Apr 07 17:57 | 2026 Apr 02 05:11:56 | 74.0597 | 0.00250 | 23.7817 | 270.9393 | 314.9379 | 12.43257 | – |
| 2026 Apr 06 17:57 | 2026 Apr 02 05:11:56 | 74.0597 | 0.00250 | 23.7817 | 270.9393 | 314.9379 | 12.43257 | – |
| 2026 Apr 05 17:56 | 2026 Apr 02 05:11:56 | 74.0597 | 0.00250 | 23.7817 | 270.9393 | 314.9379 | 12.43257 | – |
| 2026 Apr 04 17:57 | 2026 Apr 02 05:11:56 | 74.0597 | 0.00250 | 23.7817 | 270.9393 | 314.9379 | 12.43257 | – |
| 2026 Apr 03 17:56 | 2026 Apr 02 05:11:56 | 74.0597 | 0.00250 | 23.7817 | 270.9393 | 314.9379 | 12.43257 | – |
| 2026 Apr 02 18:03 | 2026 Apr 02 05:11:56 | 74.0597 | 0.00250 | 23.7817 | 270.9393 | 314.9379 | 12.43257 | – |
| 2026 Mar 31 17:57 | 2026 Mar 26 04:56:18 | 74.0599 | 0.00250 | 0.3939 | 281.1208 | 314.9379 | 12.43257 | – |