Orbital elements of COSMOS 1661
| Launched | 17 June 1985 |
| Flight ended | – |
| Launch site | Plesetsk Missile and Space Complex, Russia |
| Owner | Commonwealth of Independent States (former USSR) |
| NORAD ID | 15827 |
| 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 May 05 17:52 | 2024 Apr 24 23:15:04 | 67.8519 | 0.53867 | 10.1043 | 80.1314 | 334.0994 | 2.00713 | – |
| 2024 May 04 17:52 | 2024 Apr 24 23:15:04 | 67.8519 | 0.53867 | 10.1043 | 80.1314 | 334.0994 | 2.00713 | – |
| 2024 May 03 17:52 | 2024 Apr 24 23:15:04 | 67.8519 | 0.53867 | 10.1043 | 80.1314 | 334.0994 | 2.00713 | – |
| 2024 May 02 17:52 | 2024 Apr 24 23:15:04 | 67.8519 | 0.53867 | 10.1043 | 80.1314 | 334.0994 | 2.00713 | – |
| 2024 May 01 17:54 | 2024 Apr 24 23:15:04 | 67.8519 | 0.53867 | 10.1043 | 80.1314 | 334.0994 | 2.00713 | – |
| 2024 Apr 30 17:57 | 2024 Apr 24 23:15:04 | 67.8519 | 0.53867 | 10.1043 | 80.1314 | 334.0994 | 2.00713 | – |
| 2024 Apr 29 17:52 | 2024 Apr 24 23:15:04 | 67.8519 | 0.53867 | 10.1043 | 80.1314 | 334.0994 | 2.00713 | – |
| 2024 Apr 28 17:52 | 2024 Apr 24 23:15:04 | 67.8519 | 0.53867 | 10.1043 | 80.1314 | 334.0994 | 2.00713 | – |
| 2024 Apr 27 17:58 | 2024 Apr 24 23:15:04 | 67.8519 | 0.53867 | 10.1043 | 80.1314 | 334.0994 | 2.00713 | – |
| 2024 Apr 26 17:54 | 2024 Apr 20 11:38:08 | 67.8529 | 0.53846 | 10.1194 | 80.2465 | 334.0994 | 2.00713 | – |
| 2024 Apr 25 17:55 | 2024 Apr 20 11:38:08 | 67.8529 | 0.53846 | 10.1194 | 80.2465 | 334.0994 | 2.00713 | – |
| 2024 Apr 24 17:53 | 2024 Apr 20 11:38:08 | 67.8529 | 0.53846 | 10.1194 | 80.2465 | 334.0994 | 2.00713 | – |
| 2024 Apr 23 17:53 | 2024 Apr 20 11:38:08 | 67.8529 | 0.53846 | 10.1194 | 80.2465 | 334.0994 | 2.00713 | – |
| 2024 Apr 22 17:52 | 2024 Apr 20 11:38:08 | 67.8529 | 0.53846 | 10.1194 | 80.2465 | 334.0994 | 2.00713 | – |
| 2024 Apr 21 17:53 | 2024 Apr 16 11:58:47 | 67.8539 | 0.53828 | 10.1328 | 80.3490 | 334.0994 | 2.00713 | – |
| 2024 Apr 20 17:52 | 2024 Apr 16 11:58:47 | 67.8539 | 0.53828 | 10.1328 | 80.3490 | 334.0994 | 2.00713 | – |
| 2024 Apr 19 17:53 | 2024 Apr 16 11:58:47 | 67.8539 | 0.53828 | 10.1328 | 80.3490 | 334.0994 | 2.00713 | – |
| 2024 Apr 18 17:57 | 2024 Apr 16 11:58:47 | 67.8539 | 0.53828 | 10.1328 | 80.3490 | 334.0994 | 2.00713 | – |
| 2024 Apr 17 17:53 | 2024 Apr 16 11:58:47 | 67.8539 | 0.53828 | 10.1328 | 80.3490 | 334.0994 | 2.00713 | – |
| 2024 Apr 16 17:53 | 2024 Apr 16 11:58:47 | 67.8539 | 0.53828 | 10.1328 | 80.3490 | 334.0994 | 2.00713 | – |
| 2024 Apr 15 17:54 | 2024 Apr 08 12:40:44 | 67.8561 | 0.53793 | 10.1595 | 80.5559 | 334.0994 | 2.00713 | – |
| 2024 Apr 14 17:53 | 2024 Apr 08 12:40:44 | 67.8561 | 0.53793 | 10.1595 | 80.5559 | 334.0994 | 2.00713 | – |
| 2024 Apr 13 17:53 | 2024 Apr 08 12:40:44 | 67.8561 | 0.53793 | 10.1595 | 80.5559 | 334.0994 | 2.00713 | – |
| 2024 Apr 12 17:53 | 2024 Apr 08 12:40:44 | 67.8561 | 0.53793 | 10.1595 | 80.5559 | 334.0994 | 2.00713 | – |
| 2024 Apr 11 17:54 | 2024 Apr 08 12:40:44 | 67.8561 | 0.53793 | 10.1595 | 80.5559 | 334.0994 | 2.00713 | – |
| 2024 Apr 10 17:56 | 2024 Apr 08 12:40:44 | 67.8561 | 0.53793 | 10.1595 | 80.5559 | 334.0994 | 2.00713 | – |
| 2024 Apr 09 17:56 | 2024 Apr 02 01:15:12 | 67.8579 | 0.53763 | 10.1812 | 80.7241 | 334.0994 | 2.00713 | – |
| 2024 Apr 08 17:55 | 2024 Apr 02 01:15:12 | 67.8579 | 0.53763 | 10.1812 | 80.7241 | 334.0994 | 2.00713 | – |