Orbital elements of COSMOS 2161
| Launched | 27 September 1991 |
| Flight ended | – |
| Launch site | Plesetsk Missile and Space Complex, Russia |
| Owner | Commonwealth of Independent States (former USSR) |
| NORAD ID | 21732 |
| 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 Dec 18 18:57 | 2025 Dec 12 06:15:23 | 82.5779 | 0.00115 | 2.9909 | 45.0545 | 20.1573 | 12.65273 | 7.543 |
| 2025 Dec 17 18:58 | 2025 Dec 12 06:15:23 | 82.5779 | 0.00115 | 2.9909 | 45.0545 | 20.1573 | 12.65273 | 7.543 |
| 2025 Dec 16 18:57 | 2025 Dec 12 06:15:23 | 82.5779 | 0.00115 | 2.9909 | 45.0545 | 20.1573 | 12.65273 | 7.543 |
| 2025 Dec 15 18:58 | 2025 Dec 12 06:15:23 | 82.5779 | 0.00115 | 2.9909 | 45.0545 | 20.1573 | 12.65273 | 7.543 |
| 2025 Dec 14 18:56 | 2025 Dec 12 06:15:23 | 82.5779 | 0.00115 | 2.9909 | 45.0545 | 20.1573 | 12.65273 | 7.543 |
| 2025 Dec 13 18:56 | 2025 Dec 12 06:15:23 | 82.5779 | 0.00115 | 2.9909 | 45.0545 | 20.1573 | 12.65273 | 7.543 |
| 2025 Dec 12 18:57 | 2025 Dec 12 06:15:23 | 82.5779 | 0.00115 | 2.9909 | 45.0545 | 20.1573 | 12.65273 | 7.543 |
| 2025 Dec 11 18:56 | 2025 Dec 06 17:42:52 | 82.5782 | 0.00116 | 3.2271 | 56.6312 | 20.1573 | 12.65273 | 7.543 |
| 2025 Dec 10 18:56 | 2025 Dec 06 17:42:52 | 82.5782 | 0.00116 | 3.2271 | 56.6312 | 20.1573 | 12.65273 | 7.543 |
| 2025 Dec 09 18:56 | 2025 Dec 06 17:42:52 | 82.5782 | 0.00116 | 3.2271 | 56.6312 | 20.1573 | 12.65273 | 7.543 |
| 2025 Dec 08 18:56 | 2025 Dec 06 17:42:52 | 82.5782 | 0.00116 | 3.2271 | 56.6312 | 20.1573 | 12.65273 | 7.543 |
| 2025 Dec 07 18:56 | 2025 Dec 06 17:42:52 | 82.5782 | 0.00116 | 3.2271 | 56.6312 | 20.1573 | 12.65273 | 7.543 |
| 2025 Dec 06 18:56 | 2025 Dec 02 07:07:12 | 82.5785 | 0.00118 | 3.4171 | 66.0853 | 20.1573 | 12.65273 | 7.543 |
| 2025 Dec 05 18:57 | 2025 Dec 02 07:07:12 | 82.5785 | 0.00118 | 3.4171 | 66.0853 | 20.1573 | 12.65273 | 7.543 |
| 2025 Dec 04 18:57 | 2025 Dec 02 07:07:12 | 82.5785 | 0.00118 | 3.4171 | 66.0853 | 20.1573 | 12.65273 | 7.543 |
| 2025 Dec 03 18:56 | 2025 Dec 02 07:07:12 | 82.5785 | 0.00118 | 3.4171 | 66.0853 | 20.1573 | 12.65273 | 7.543 |
| 2025 Dec 02 18:56 | 2025 Dec 02 07:07:12 | 82.5785 | 0.00118 | 3.4171 | 66.0853 | 20.1573 | 12.65273 | 7.543 |
| 2025 Nov 30 18:57 | 2025 Nov 25 11:38:36 | 82.5785 | 0.00120 | 3.7085 | 80.7097 | 20.1573 | 12.65273 | 7.543 |
| 2025 Nov 29 18:56 | 2025 Nov 25 11:38:36 | 82.5785 | 0.00120 | 3.7085 | 80.7097 | 20.1573 | 12.65273 | 7.543 |
| 2025 Nov 28 18:57 | 2025 Nov 25 11:38:36 | 82.5785 | 0.00120 | 3.7085 | 80.7097 | 20.1573 | 12.65273 | 7.543 |
| 2025 Nov 27 18:57 | 2025 Nov 25 11:38:36 | 82.5785 | 0.00120 | 3.7085 | 80.7097 | 20.1573 | 12.65273 | 7.543 |
| 2025 Nov 26 18:57 | 2025 Nov 25 11:38:36 | 82.5785 | 0.00120 | 3.7085 | 80.7097 | 20.1573 | 12.65273 | 7.543 |
| 2025 Nov 25 18:57 | 2025 Nov 25 11:38:36 | 82.5785 | 0.00120 | 3.7085 | 80.7097 | 20.1573 | 12.65273 | 7.543 |
| 2025 Nov 24 18:56 | 2025 Nov 20 06:28:43 | 82.5785 | 0.00120 | 3.9316 | 91.4965 | 20.1573 | 12.65273 | 7.543 |
| 2025 Nov 23 18:57 | 2025 Nov 20 06:28:43 | 82.5785 | 0.00120 | 3.9316 | 91.4965 | 20.1573 | 12.65273 | 7.543 |
| 2025 Nov 21 18:57 | 2025 Nov 20 06:28:43 | 82.5785 | 0.00120 | 3.9316 | 91.4965 | 20.1573 | 12.65273 | 7.543 |