Orbital elements of COSMOS 1691
| Launched | 8 October 1985 |
| Flight ended | – |
| Launch site | Plesetsk Missile and Space Complex, Russia |
| Owner | Commonwealth of Independent States (former USSR) |
| NORAD ID | 16139 |
| 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 |
| 2025 Jan 02 18:53 | 2024 Dec 31 18:07:25 | 82.6115 | 0.00009 | 17.8810 | 45.4181 | 340.6904 | 12.62454 | 8.743 |
| 2025 Jan 01 18:53 | 2024 Dec 31 18:07:25 | 82.6115 | 0.00009 | 17.8810 | 45.4181 | 340.6904 | 12.62454 | 8.743 |
| 2024 Dec 31 18:53 | 2024 Dec 26 20:24:10 | 82.6117 | 0.00010 | 18.0887 | 46.2976 | 340.6904 | 12.62454 | 8.743 |
| 2024 Dec 30 18:53 | 2024 Dec 26 20:24:10 | 82.6117 | 0.00010 | 18.0887 | 46.2976 | 340.6904 | 12.62454 | 8.743 |
| 2024 Dec 29 20:34 | 2024 Dec 26 20:24:10 | 82.6117 | 0.00010 | 18.0887 | 46.2976 | 340.6904 | 12.62454 | 8.743 |
| 2024 Dec 28 18:53 | 2024 Dec 26 20:24:10 | 82.6117 | 0.00010 | 18.0887 | 46.2976 | 340.6904 | 12.62454 | 8.743 |
| 2024 Dec 27 18:53 | 2024 Dec 26 20:24:10 | 82.6117 | 0.00010 | 18.0887 | 46.2976 | 340.6904 | 12.62454 | 8.743 |
| 2024 Dec 26 18:53 | 2024 Dec 22 06:38:12 | 82.6118 | 0.00011 | 18.2825 | 48.0917 | 340.6904 | 12.62454 | 8.743 |
| 2024 Dec 25 18:53 | 2024 Dec 22 06:38:12 | 82.6118 | 0.00011 | 18.2825 | 48.0917 | 340.6904 | 12.62454 | 8.743 |
| 2024 Dec 24 18:53 | 2024 Dec 22 06:38:12 | 82.6118 | 0.00011 | 18.2825 | 48.0917 | 340.6904 | 12.62454 | 8.743 |
| 2024 Dec 23 19:54 | 2024 Dec 22 06:38:12 | 82.6118 | 0.00011 | 18.2825 | 48.0917 | 340.6904 | 12.62454 | 8.743 |
| 2024 Dec 22 18:53 | 2024 Dec 22 06:38:12 | 82.6118 | 0.00011 | 18.2825 | 48.0917 | 340.6904 | 12.62454 | 8.743 |
| 2024 Dec 21 18:53 | 2024 Dec 15 19:49:12 | 82.6115 | 0.00012 | 18.5557 | 51.7247 | 340.6904 | 12.62454 | 8.743 |
| 2024 Dec 20 18:53 | 2024 Dec 15 19:49:12 | 82.6115 | 0.00012 | 18.5557 | 51.7247 | 340.6904 | 12.62454 | 8.743 |
| 2024 Dec 19 18:53 | 2024 Dec 15 19:49:12 | 82.6115 | 0.00012 | 18.5557 | 51.7247 | 340.6904 | 12.62454 | 8.743 |
| 2024 Dec 18 18:53 | 2024 Dec 15 19:49:12 | 82.6115 | 0.00012 | 18.5557 | 51.7247 | 340.6904 | 12.62454 | 8.743 |
| 2024 Dec 17 18:53 | 2024 Dec 15 19:49:12 | 82.6115 | 0.00012 | 18.5557 | 51.7247 | 340.6904 | 12.62454 | 8.743 |
| 2024 Dec 16 18:54 | 2024 Dec 15 19:49:12 | 82.6115 | 0.00012 | 18.5557 | 51.7247 | 340.6904 | 12.62454 | 8.743 |
| 2024 Dec 14 18:53 | 2024 Dec 05 15:14:34 | 82.6108 | 0.00014 | 18.9874 | 58.0110 | 340.6904 | 12.62454 | 8.743 |
| 2024 Dec 13 18:53 | 2024 Dec 05 15:14:34 | 82.6108 | 0.00014 | 18.9874 | 58.0110 | 340.6904 | 12.62454 | 8.743 |
| 2024 Dec 12 18:53 | 2024 Dec 05 15:14:34 | 82.6108 | 0.00014 | 18.9874 | 58.0110 | 340.6904 | 12.62454 | 8.743 |
| 2024 Dec 11 18:53 | 2024 Dec 05 15:14:34 | 82.6108 | 0.00014 | 18.9874 | 58.0110 | 340.6904 | 12.62454 | 8.743 |
| 2024 Dec 10 18:53 | 2024 Dec 05 15:14:34 | 82.6108 | 0.00014 | 18.9874 | 58.0110 | 340.6904 | 12.62454 | 8.743 |
| 2024 Dec 09 18:53 | 2024 Dec 05 15:14:34 | 82.6108 | 0.00014 | 18.9874 | 58.0110 | 340.6904 | 12.62454 | 8.743 |
| 2024 Dec 08 18:56 | 2024 Dec 05 15:14:34 | 82.6108 | 0.00014 | 18.9874 | 58.0110 | 340.6904 | 12.62454 | 8.743 |
| 2024 Dec 07 18:57 | 2024 Dec 05 15:14:34 | 82.6108 | 0.00014 | 18.9874 | 58.0110 | 340.6904 | 12.62454 | 8.743 |
| 2024 Dec 06 18:53 | 2024 Dec 05 15:14:34 | 82.6108 | 0.00014 | 18.9874 | 58.0110 | 340.6904 | 12.62454 | 8.743 |