Orbital elements of COSMOS 1690
| Launched | 8 October 1985 |
| Flight ended | – |
| Launch site | Plesetsk Missile and Space Complex, Russia |
| Owner | Commonwealth of Independent States (former USSR) |
| NORAD ID | 16138 |
| 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 Mar 13 18:57 | 2026 Mar 10 01:27:00 | 82.6040 | 0.00220 | 18.9681 | 158.4968 | 354.8906 | 12.66103 | 8.243 |
| 2026 Mar 12 18:57 | 2026 Mar 10 01:27:00 | 82.6040 | 0.00220 | 18.9681 | 158.4968 | 354.8906 | 12.66103 | 8.243 |
| 2026 Mar 11 18:56 | 2026 Mar 10 01:27:00 | 82.6040 | 0.00220 | 18.9681 | 158.4968 | 354.8906 | 12.66103 | 8.243 |
| 2026 Mar 10 18:56 | 2026 Mar 10 01:27:00 | 82.6040 | 0.00220 | 18.9681 | 158.4968 | 354.8906 | 12.66103 | 8.243 |
| 2026 Mar 09 18:56 | 2026 Mar 04 13:55:42 | 82.6048 | 0.00218 | 19.2020 | 170.9113 | 354.8906 | 12.66103 | 8.243 |
| 2026 Mar 08 18:57 | 2026 Mar 04 13:55:42 | 82.6048 | 0.00218 | 19.2020 | 170.9113 | 354.8906 | 12.66103 | 8.243 |
| 2026 Mar 07 18:57 | 2026 Mar 04 13:55:42 | 82.6048 | 0.00218 | 19.2020 | 170.9113 | 354.8906 | 12.66103 | 8.243 |
| 2026 Mar 06 18:56 | 2026 Mar 04 13:55:42 | 82.6048 | 0.00218 | 19.2020 | 170.9113 | 354.8906 | 12.66103 | 8.243 |
| 2026 Mar 05 18:56 | 2026 Mar 04 13:55:42 | 82.6048 | 0.00218 | 19.2020 | 170.9113 | 354.8906 | 12.66103 | 8.243 |
| 2026 Mar 04 18:57 | 2026 Mar 04 13:55:42 | 82.6048 | 0.00218 | 19.2020 | 170.9113 | 354.8906 | 12.66103 | 8.243 |
| 2026 Mar 03 18:56 | 2026 Feb 26 13:40:41 | 82.6060 | 0.00215 | 19.4586 | 184.5565 | 354.8906 | 12.66103 | 8.243 |
| 2026 Mar 02 18:57 | 2026 Feb 26 13:40:41 | 82.6060 | 0.00215 | 19.4586 | 184.5565 | 354.8906 | 12.66103 | 8.243 |
| 2026 Mar 01 18:57 | 2026 Feb 26 13:40:41 | 82.6060 | 0.00215 | 19.4586 | 184.5565 | 354.8906 | 12.66103 | 8.243 |
| 2026 Feb 28 18:56 | 2026 Feb 26 13:40:41 | 82.6060 | 0.00215 | 19.4586 | 184.5565 | 354.8906 | 12.66103 | 8.243 |
| 2026 Feb 27 19:05 | 2026 Feb 26 13:40:41 | 82.6060 | 0.00215 | 19.4586 | 184.5565 | 354.8906 | 12.66103 | 8.243 |
| 2026 Feb 26 20:45 | 2026 Feb 26 13:40:41 | 82.6060 | 0.00215 | 19.4586 | 184.5565 | 354.8906 | 12.66103 | 8.243 |