Orbital elements of COSMOS 1287
| Launched | 5 August 1981 |
| Flight ended | – |
| Launch site | Plesetsk Missile and Space Complex, Russia |
| Owner | Commonwealth of Independent States (former USSR) |
| NORAD ID | 12636 |
| 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 |
| 2024 May 09 17:52 | 2024 May 06 17:09:10 | 74.0300 | 0.00299 | 9.1974 | 77.4872 | 282.9516 | 12.44337 | – |
| 2024 May 08 17:52 | 2024 May 06 17:09:10 | 74.0300 | 0.00299 | 9.1974 | 77.4872 | 282.9516 | 12.44337 | – |
| 2024 May 07 17:52 | 2024 May 06 17:09:10 | 74.0300 | 0.00299 | 9.1974 | 77.4872 | 282.9516 | 12.44337 | – |
| 2024 May 06 17:52 | 2024 May 02 10:53:45 | 74.0302 | 0.00299 | 9.5708 | 83.9708 | 282.9516 | 12.44337 | – |
| 2024 May 05 17:52 | 2024 May 02 10:53:45 | 74.0302 | 0.00299 | 9.5708 | 83.9708 | 282.9516 | 12.44337 | – |
| 2024 May 04 17:52 | 2024 May 02 10:53:45 | 74.0302 | 0.00299 | 9.5708 | 83.9708 | 282.9516 | 12.44337 | – |
| 2024 May 03 17:52 | 2024 May 02 10:53:45 | 74.0302 | 0.00299 | 9.5708 | 83.9708 | 282.9516 | 12.44337 | – |
| 2024 May 02 17:52 | 2024 May 02 10:53:45 | 74.0302 | 0.00299 | 9.5708 | 83.9708 | 282.9516 | 12.44337 | – |
| 2024 May 01 17:54 | 2024 Apr 27 13:12:14 | 74.0310 | 0.00299 | 10.0006 | 91.4363 | 282.9516 | 12.44337 | – |
| 2024 Apr 30 17:57 | 2024 Apr 27 13:12:14 | 74.0310 | 0.00299 | 10.0006 | 91.4363 | 282.9516 | 12.44337 | – |
| 2024 Apr 29 17:52 | 2024 Apr 27 13:12:14 | 74.0310 | 0.00299 | 10.0006 | 91.4363 | 282.9516 | 12.44337 | – |
| 2024 Apr 28 17:52 | 2024 Apr 27 13:12:14 | 74.0310 | 0.00299 | 10.0006 | 91.4363 | 282.9516 | 12.44337 | – |
| 2024 Apr 27 17:58 | 2024 Apr 27 13:12:14 | 74.0310 | 0.00299 | 10.0006 | 91.4363 | 282.9516 | 12.44337 | – |
| 2024 Apr 26 17:54 | 2024 Apr 21 14:25:47 | 74.0319 | 0.00299 | 10.5220 | 100.4525 | 282.9516 | 12.44337 | – |
| 2024 Apr 25 17:55 | 2024 Apr 21 14:25:47 | 74.0319 | 0.00299 | 10.5220 | 100.4525 | 282.9516 | 12.44337 | – |
| 2024 Apr 24 17:53 | 2024 Apr 21 14:25:47 | 74.0319 | 0.00299 | 10.5220 | 100.4525 | 282.9516 | 12.44337 | – |
| 2024 Apr 23 17:53 | 2024 Apr 21 14:25:47 | 74.0319 | 0.00299 | 10.5220 | 100.4525 | 282.9516 | 12.44337 | – |
| 2024 Apr 22 17:52 | 2024 Apr 21 14:25:47 | 74.0319 | 0.00299 | 10.5220 | 100.4525 | 282.9516 | 12.44337 | – |
| 2024 Apr 21 17:53 | 2024 Apr 15 13:43:34 | 74.0331 | 0.00300 | 11.0504 | 109.6098 | 282.9516 | 12.44337 | – |
| 2024 Apr 20 17:52 | 2024 Apr 15 13:43:34 | 74.0331 | 0.00300 | 11.0504 | 109.6098 | 282.9516 | 12.44337 | – |
| 2024 Apr 19 17:53 | 2024 Apr 15 13:43:34 | 74.0331 | 0.00300 | 11.0504 | 109.6098 | 282.9516 | 12.44337 | – |
| 2024 Apr 18 17:57 | 2024 Apr 15 13:43:34 | 74.0331 | 0.00300 | 11.0504 | 109.6098 | 282.9516 | 12.44337 | – |
| 2024 Apr 17 17:53 | 2024 Apr 15 13:43:34 | 74.0331 | 0.00300 | 11.0504 | 109.6098 | 282.9516 | 12.44337 | – |
| 2024 Apr 16 17:53 | 2024 Apr 15 13:43:34 | 74.0331 | 0.00300 | 11.0504 | 109.6098 | 282.9516 | 12.44337 | – |
| 2024 Apr 15 17:54 | 2024 Apr 09 11:05:35 | 74.0340 | 0.00300 | 11.5857 | 118.8596 | 282.9516 | 12.44337 | – |
| 2024 Apr 14 17:53 | 2024 Apr 09 11:05:35 | 74.0340 | 0.00300 | 11.5857 | 118.8596 | 282.9516 | 12.44337 | – |
| 2024 Apr 13 17:53 | 2024 Apr 09 11:05:35 | 74.0340 | 0.00300 | 11.5857 | 118.8596 | 282.9516 | 12.44337 | – |
| 2024 Apr 12 17:53 | 2024 Apr 09 11:05:35 | 74.0340 | 0.00300 | 11.5857 | 118.8596 | 282.9516 | 12.44337 | – |