Orbital elements of COSMOS 1638
| Launched | 20 March 1985 |
| Flight ended | – |
| Launch site | Plesetsk Missile and Space Complex, Russia |
| Owner | Commonwealth of Independent States (former USSR) |
| NORAD ID | 15620 |
| 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 16 17:53 | 2024 Jul 15 21:38:32 | 74.0535 | 0.00151 | 16.3683 | 139.2399 | 33.3251 | 12.49197 | – |
| 2024 Jul 15 17:53 | 2024 Jul 09 15:25:48 | 74.0545 | 0.00152 | 16.9211 | 148.7373 | 33.3251 | 12.49197 | – |
| 2024 Jul 14 17:57 | 2024 Jul 09 15:25:48 | 74.0545 | 0.00152 | 16.9211 | 148.7373 | 33.3251 | 12.49197 | – |
| 2024 Jul 13 17:52 | 2024 Jul 09 15:25:48 | 74.0545 | 0.00152 | 16.9211 | 148.7373 | 33.3251 | 12.49197 | – |
| 2024 Jul 12 17:53 | 2024 Jul 09 15:25:48 | 74.0545 | 0.00152 | 16.9211 | 148.7373 | 33.3251 | 12.49197 | – |
| 2024 Jul 11 17:57 | 2024 Jul 09 15:25:48 | 74.0545 | 0.00152 | 16.9211 | 148.7373 | 33.3251 | 12.49197 | – |
| 2024 Jul 10 17:54 | 2024 Jul 09 15:25:48 | 74.0545 | 0.00152 | 16.9211 | 148.7373 | 33.3251 | 12.49197 | – |
| 2024 Jul 09 18:45 | 2024 Jun 30 11:47:29 | 74.0556 | 0.00153 | 17.7293 | 162.5468 | 33.3251 | 12.49197 | – |
| 2024 Jul 08 17:53 | 2024 Jun 30 11:47:29 | 74.0556 | 0.00153 | 17.7293 | 162.5468 | 33.3251 | 12.49197 | – |
| 2024 Jul 07 17:52 | 2024 Jun 30 11:47:29 | 74.0556 | 0.00153 | 17.7293 | 162.5468 | 33.3251 | 12.49197 | – |
| 2024 Jul 06 17:57 | 2024 Jun 30 11:47:29 | 74.0556 | 0.00153 | 17.7293 | 162.5468 | 33.3251 | 12.49197 | – |
| 2024 Jul 05 17:52 | 2024 Jun 30 11:47:29 | 74.0556 | 0.00153 | 17.7293 | 162.5468 | 33.3251 | 12.49197 | – |
| 2024 Jul 04 17:55 | 2024 Jun 30 11:47:29 | 74.0556 | 0.00153 | 17.7293 | 162.5468 | 33.3251 | 12.49197 | – |
| 2024 Jul 03 17:54 | 2024 Jun 30 11:47:29 | 74.0556 | 0.00153 | 17.7293 | 162.5468 | 33.3251 | 12.49197 | – |
| 2024 Jul 02 17:52 | 2024 Jun 30 11:47:29 | 74.0556 | 0.00153 | 17.7293 | 162.5468 | 33.3251 | 12.49197 | – |
| 2024 Jul 01 17:55 | 2024 Jun 30 11:47:29 | 74.0556 | 0.00153 | 17.7293 | 162.5468 | 33.3251 | 12.49197 | – |
| 2024 Jun 30 17:54 | 2024 Jun 30 11:47:29 | 74.0556 | 0.00153 | 17.7293 | 162.5468 | 33.3251 | 12.49197 | – |
| 2024 Jun 29 17:53 | 2024 Jun 24 17:58:13 | 74.0562 | 0.00154 | 18.2365 | 171.2149 | 33.3251 | 12.49197 | – |
| 2024 Jun 28 17:53 | 2024 Jun 24 17:58:13 | 74.0562 | 0.00154 | 18.2365 | 171.2149 | 33.3251 | 12.49197 | – |
| 2024 Jun 27 17:54 | 2024 Jun 24 17:58:13 | 74.0562 | 0.00154 | 18.2365 | 171.2149 | 33.3251 | 12.49197 | – |
| 2024 Jun 26 17:54 | 2024 Jun 24 17:58:13 | 74.0562 | 0.00154 | 18.2365 | 171.2149 | 33.3251 | 12.49197 | – |
| 2024 Jun 25 17:52 | 2024 Jun 24 17:58:13 | 74.0562 | 0.00154 | 18.2365 | 171.2149 | 33.3251 | 12.49197 | – |
| 2024 Jun 24 17:53 | 2024 Jun 19 14:24:11 | 74.0563 | 0.00155 | 18.6912 | 178.7977 | 33.3251 | 12.49197 | – |
| 2024 Jun 23 17:52 | 2024 Jun 19 14:24:11 | 74.0563 | 0.00155 | 18.6912 | 178.7977 | 33.3251 | 12.49197 | – |
| 2024 Jun 22 17:57 | 2024 Jun 19 14:24:11 | 74.0563 | 0.00155 | 18.6912 | 178.7977 | 33.3251 | 12.49197 | – |
| 2024 Jun 21 17:57 | 2024 Jun 19 14:24:11 | 74.0563 | 0.00155 | 18.6912 | 178.7977 | 33.3251 | 12.49197 | – |
| 2024 Jun 20 17:56 | 2024 Jun 19 14:24:11 | 74.0563 | 0.00155 | 18.6912 | 178.7977 | 33.3251 | 12.49197 | – |
| 2024 Jun 19 17:54 | 2024 Jun 19 14:24:11 | 74.0563 | 0.00155 | 18.6912 | 178.7977 | 33.3251 | 12.49197 | – |