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 Sep 01 17:56 | 2026 Aug 31 11:33:06 | 74.0566 | 0.00241 | 10.5695 | 45.4747 | 68.9164 | 12.43259 | – |
| 2026 Aug 31 17:56 | 2026 Aug 31 11:33:06 | 74.0566 | 0.00241 | 10.5695 | 45.4747 | 68.9164 | 12.43259 | – |
| 2026 Aug 30 17:56 | 2026 Aug 25 12:38:50 | 74.0565 | 0.00240 | 11.0895 | 54.4400 | 68.9164 | 12.43259 | – |
| 2026 Aug 29 17:57 | 2026 Aug 25 12:38:50 | 74.0565 | 0.00240 | 11.0895 | 54.4400 | 68.9164 | 12.43259 | – |
| 2026 Aug 28 17:57 | 2026 Aug 25 12:38:50 | 74.0565 | 0.00240 | 11.0895 | 54.4400 | 68.9164 | 12.43259 | – |
| 2026 Aug 27 17:56 | 2026 Aug 25 12:38:50 | 74.0565 | 0.00240 | 11.0895 | 54.4400 | 68.9164 | 12.43259 | – |
| 2026 Aug 26 17:50 | 2026 Aug 25 12:38:50 | 74.0565 | 0.00240 | 11.0895 | 54.4400 | 68.9164 | 12.43259 | – |
| 2026 Aug 25 17:56 | 2026 Aug 25 12:38:50 | 74.0565 | 0.00240 | 11.0895 | 54.4400 | 68.9164 | 12.43259 | – |
| 2026 Aug 24 17:57 | 2026 Aug 19 05:47:19 | 74.0559 | 0.00239 | 11.6384 | 63.9696 | 68.9164 | 12.43259 | – |
| 2026 Aug 23 17:56 | 2026 Aug 19 05:47:19 | 74.0559 | 0.00239 | 11.6384 | 63.9696 | 68.9164 | 12.43259 | – |
| 2026 Aug 22 17:56 | 2026 Aug 19 05:47:19 | 74.0559 | 0.00239 | 11.6384 | 63.9696 | 68.9164 | 12.43259 | – |
| 2026 Aug 21 17:56 | 2026 Aug 19 05:47:19 | 74.0559 | 0.00239 | 11.6384 | 63.9696 | 68.9164 | 12.43259 | – |
| 2026 Aug 20 17:57 | 2026 Aug 19 05:47:19 | 74.0559 | 0.00239 | 11.6384 | 63.9696 | 68.9164 | 12.43259 | – |
| 2026 Aug 19 17:57 | 2026 Aug 19 05:47:19 | 74.0559 | 0.00239 | 11.6384 | 63.9696 | 68.9164 | 12.43259 | – |
| 2026 Aug 18 17:56 | 2026 Aug 13 01:07:10 | 74.0549 | 0.00239 | 12.1794 | 73.4017 | 68.9164 | 12.43259 | – |
| 2026 Aug 17 17:56 | 2026 Aug 13 01:07:10 | 74.0549 | 0.00239 | 12.1794 | 73.4017 | 68.9164 | 12.43259 | – |
| 2026 Aug 16 17:56 | 2026 Aug 13 01:07:10 | 74.0549 | 0.00239 | 12.1794 | 73.4017 | 68.9164 | 12.43259 | – |
| 2026 Aug 15 17:57 | 2026 Aug 13 01:07:10 | 74.0549 | 0.00239 | 12.1794 | 73.4017 | 68.9164 | 12.43259 | – |
| 2026 Aug 14 17:56 | 2026 Aug 13 01:07:10 | 74.0549 | 0.00239 | 12.1794 | 73.4017 | 68.9164 | 12.43259 | – |
| 2026 Aug 13 17:57 | 2026 Aug 13 01:07:10 | 74.0549 | 0.00239 | 12.1794 | 73.4017 | 68.9164 | 12.43259 | – |
| 2026 Aug 12 17:56 | 2026 Aug 07 06:17:03 | 74.0540 | 0.00238 | 12.6846 | 82.1846 | 68.9164 | 12.43259 | – |
| 2026 Aug 11 17:56 | 2026 Aug 07 06:17:03 | 74.0540 | 0.00238 | 12.6846 | 82.1846 | 68.9164 | 12.43259 | – |
| 2026 Aug 10 17:56 | 2026 Aug 07 06:17:03 | 74.0540 | 0.00238 | 12.6846 | 82.1846 | 68.9164 | 12.43259 | – |
| 2026 Aug 09 17:57 | 2026 Aug 07 06:17:03 | 74.0540 | 0.00238 | 12.6846 | 82.1846 | 68.9164 | 12.43259 | – |
| 2026 Aug 08 17:57 | 2026 Aug 07 06:17:03 | 74.0540 | 0.00238 | 12.6846 | 82.1846 | 68.9164 | 12.43259 | – |
| 2026 Aug 07 17:57 | 2026 Aug 07 06:17:03 | 74.0540 | 0.00238 | 12.6846 | 82.1846 | 68.9164 | 12.43259 | – |
| 2026 Aug 06 17:57 | 2026 Aug 01 07:23:24 | 74.0531 | 0.00238 | 13.2046 | 91.2745 | 68.9164 | 12.43259 | – |
| 2026 Aug 05 17:56 | 2026 Aug 01 07:23:24 | 74.0531 | 0.00238 | 13.2046 | 91.2745 | 68.9164 | 12.43259 | – |