Orbital elements of COSMOS 1639
| Launched | 20 March 1985 |
| Flight ended | – |
| Launch site | Plesetsk Missile and Space Complex, Russia |
| Owner | Commonwealth of Independent States (former USSR) |
| NORAD ID | 15621 |
| 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 Jul 17 17:54 | 2024 Jul 15 23:03:31 | 74.0533 | 0.00246 | 11.9818 | 52.9505 | 335.6515 | 12.51040 | – |
| 2024 Jul 16 17:53 | 2024 Jul 15 23:03:31 | 74.0533 | 0.00246 | 11.9818 | 52.9505 | 335.6515 | 12.51040 | – |
| 2024 Jul 15 17:53 | 2024 Jul 09 10:08:31 | 74.0527 | 0.00245 | 12.5612 | 63.0530 | 335.6515 | 12.51040 | – |
| 2024 Jul 14 17:57 | 2024 Jul 09 10:08:31 | 74.0527 | 0.00245 | 12.5612 | 63.0530 | 335.6515 | 12.51040 | – |
| 2024 Jul 13 17:52 | 2024 Jul 09 10:08:31 | 74.0527 | 0.00245 | 12.5612 | 63.0530 | 335.6515 | 12.51040 | – |
| 2024 Jul 12 17:53 | 2024 Jul 09 10:08:31 | 74.0527 | 0.00245 | 12.5612 | 63.0530 | 335.6515 | 12.51040 | – |
| 2024 Jul 11 17:57 | 2024 Jul 09 10:08:31 | 74.0527 | 0.00245 | 12.5612 | 63.0530 | 335.6515 | 12.51040 | – |
| 2024 Jul 10 17:54 | 2024 Jul 09 10:08:31 | 74.0527 | 0.00245 | 12.5612 | 63.0530 | 335.6515 | 12.51040 | – |
| 2024 Jul 09 18:45 | 2024 Jun 29 12:24:13 | 74.0524 | 0.00244 | 13.4391 | 78.3240 | 335.6515 | 12.51040 | – |
| 2024 Jul 08 17:53 | 2024 Jun 29 12:24:13 | 74.0524 | 0.00244 | 13.4391 | 78.3240 | 335.6515 | 12.51040 | – |
| 2024 Jul 07 17:52 | 2024 Jun 29 12:24:13 | 74.0524 | 0.00244 | 13.4391 | 78.3240 | 335.6515 | 12.51040 | – |
| 2024 Jul 06 17:57 | 2024 Jun 29 12:24:13 | 74.0524 | 0.00244 | 13.4391 | 78.3240 | 335.6515 | 12.51040 | – |
| 2024 Jul 05 17:52 | 2024 Jun 29 12:24:13 | 74.0524 | 0.00244 | 13.4391 | 78.3240 | 335.6515 | 12.51040 | – |
| 2024 Jul 04 17:55 | 2024 Jun 29 12:24:13 | 74.0524 | 0.00244 | 13.4391 | 78.3240 | 335.6515 | 12.51040 | – |
| 2024 Jul 03 17:54 | 2024 Jun 29 12:24:13 | 74.0524 | 0.00244 | 13.4391 | 78.3240 | 335.6515 | 12.51040 | – |
| 2024 Jul 02 17:52 | 2024 Jun 29 12:24:13 | 74.0524 | 0.00244 | 13.4391 | 78.3240 | 335.6515 | 12.51040 | – |
| 2024 Jul 01 17:55 | 2024 Jun 29 12:24:13 | 74.0524 | 0.00244 | 13.4391 | 78.3240 | 335.6515 | 12.51040 | – |
| 2024 Jun 30 17:54 | 2024 Jun 29 12:24:13 | 74.0524 | 0.00244 | 13.4391 | 78.3240 | 335.6515 | 12.51040 | – |
| 2024 Jun 29 17:53 | 2024 Jun 24 13:12:26 | 74.0530 | 0.00244 | 13.8793 | 86.0316 | 335.6515 | 12.51040 | – |
| 2024 Jun 28 17:53 | 2024 Jun 24 13:12:26 | 74.0530 | 0.00244 | 13.8793 | 86.0316 | 335.6515 | 12.51040 | – |
| 2024 Jun 27 17:54 | 2024 Jun 24 13:12:26 | 74.0530 | 0.00244 | 13.8793 | 86.0316 | 335.6515 | 12.51040 | – |
| 2024 Jun 26 17:54 | 2024 Jun 24 13:12:26 | 74.0530 | 0.00244 | 13.8793 | 86.0316 | 335.6515 | 12.51040 | – |
| 2024 Jun 25 17:52 | 2024 Jun 24 13:12:26 | 74.0530 | 0.00244 | 13.8793 | 86.0316 | 335.6515 | 12.51040 | – |
| 2024 Jun 24 17:53 | 2024 Jun 19 14:13:43 | 74.0534 | 0.00245 | 14.3186 | 93.6917 | 335.6515 | 12.51040 | – |
| 2024 Jun 23 17:52 | 2024 Jun 19 14:13:43 | 74.0534 | 0.00245 | 14.3186 | 93.6917 | 335.6515 | 12.51040 | – |
| 2024 Jun 22 17:57 | 2024 Jun 19 14:13:43 | 74.0534 | 0.00245 | 14.3186 | 93.6917 | 335.6515 | 12.51040 | – |
| 2024 Jun 21 17:57 | 2024 Jun 19 14:13:43 | 74.0534 | 0.00245 | 14.3186 | 93.6917 | 335.6515 | 12.51040 | – |
| 2024 Jun 20 17:56 | 2024 Jun 19 14:13:43 | 74.0534 | 0.00245 | 14.3186 | 93.6917 | 335.6515 | 12.51040 | – |