Orbital elements of COSMOS 1660
| Launched | 13 June 1985 |
| Flight ended | – |
| Launch site | Plesetsk Missile and Space Complex, Russia |
| Owner | Commonwealth of Independent States (former USSR) |
| NORAD ID | 15821 |
| 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 Aug 31 17:56 | 2025 Aug 27 22:00:31 | 73.6220 | 0.00265 | 14.5256 | 128.9083 | 293.5382 | 12.40795 | 4.743 |
| 2025 Aug 30 17:56 | 2025 Aug 27 22:00:31 | 73.6220 | 0.00265 | 14.5256 | 128.9083 | 293.5382 | 12.40795 | 4.743 |
| 2025 Aug 29 17:56 | 2025 Aug 27 22:00:31 | 73.6220 | 0.00265 | 14.5256 | 128.9083 | 293.5382 | 12.40795 | 4.743 |
| 2025 Aug 28 17:57 | 2025 Aug 27 22:00:31 | 73.6220 | 0.00265 | 14.5256 | 128.9083 | 293.5382 | 12.40795 | 4.743 |
| 2025 Aug 27 17:56 | 2025 Aug 23 05:31:38 | 73.6220 | 0.00266 | 14.9438 | 135.7621 | 293.5382 | 12.40795 | 4.743 |
| 2025 Aug 26 17:56 | 2025 Aug 23 05:31:38 | 73.6220 | 0.00266 | 14.9438 | 135.7621 | 293.5382 | 12.40795 | 4.743 |
| 2025 Aug 25 17:56 | 2025 Aug 23 05:31:38 | 73.6220 | 0.00266 | 14.9438 | 135.7621 | 293.5382 | 12.40795 | 4.743 |
| 2025 Aug 24 17:56 | 2025 Aug 23 05:31:38 | 73.6220 | 0.00266 | 14.9438 | 135.7621 | 293.5382 | 12.40795 | 4.743 |
| 2025 Aug 23 17:56 | 2025 Aug 23 05:31:38 | 73.6220 | 0.00266 | 14.9438 | 135.7621 | 293.5382 | 12.40795 | 4.743 |
| 2025 Aug 22 17:56 | 2025 Aug 18 11:55:08 | 73.6215 | 0.00266 | 15.3662 | 142.6924 | 293.5382 | 12.40795 | 4.743 |
| 2025 Aug 20 17:56 | 2025 Aug 18 11:55:08 | 73.6215 | 0.00266 | 15.3662 | 142.6924 | 293.5382 | 12.40795 | 4.743 |
| 2025 Aug 19 17:56 | 2025 Aug 18 11:55:08 | 73.6215 | 0.00266 | 15.3662 | 142.6924 | 293.5382 | 12.40795 | 4.743 |
| 2025 Aug 18 17:56 | 2025 Aug 18 11:55:08 | 73.6215 | 0.00266 | 15.3662 | 142.6924 | 293.5382 | 12.40795 | 4.743 |
| 2025 Aug 16 17:56 | 2025 Aug 12 00:39:25 | 73.6215 | 0.00267 | 15.9435 | 152.0967 | 293.5382 | 12.40795 | 4.743 |
| 2025 Aug 15 17:57 | 2025 Aug 12 00:39:25 | 73.6215 | 0.00267 | 15.9435 | 152.0967 | 293.5382 | 12.40795 | 4.743 |
| 2025 Aug 14 17:56 | 2025 Aug 12 00:39:25 | 73.6215 | 0.00267 | 15.9435 | 152.0967 | 293.5382 | 12.40795 | 4.743 |
| 2025 Aug 13 17:58 | 2025 Aug 12 00:39:25 | 73.6215 | 0.00267 | 15.9435 | 152.0967 | 293.5382 | 12.40795 | 4.743 |
| 2025 Aug 12 17:56 | 2025 Aug 12 00:39:25 | 73.6215 | 0.00267 | 15.9435 | 152.0967 | 293.5382 | 12.40795 | 4.743 |
| 2025 Aug 11 17:56 | 2025 Aug 06 13:33:49 | 73.6218 | 0.00268 | 16.4310 | 160.0062 | 293.5382 | 12.40795 | 4.743 |
| 2025 Aug 10 17:57 | 2025 Aug 06 13:33:49 | 73.6218 | 0.00268 | 16.4310 | 160.0062 | 293.5382 | 12.40795 | 4.743 |
| 2025 Aug 09 17:56 | 2025 Aug 06 13:33:49 | 73.6218 | 0.00268 | 16.4310 | 160.0062 | 293.5382 | 12.40795 | 4.743 |
| 2025 Aug 08 17:56 | 2025 Aug 06 13:33:49 | 73.6218 | 0.00268 | 16.4310 | 160.0062 | 293.5382 | 12.40795 | 4.743 |
| 2025 Aug 07 17:56 | 2025 Aug 06 13:33:49 | 73.6218 | 0.00268 | 16.4310 | 160.0062 | 293.5382 | 12.40795 | 4.743 |
| 2025 Aug 05 17:56 | 2025 Jul 31 14:21:52 | 73.6225 | 0.00269 | 16.9634 | 168.6091 | 293.5382 | 12.40795 | 4.743 |
| 2025 Aug 04 17:56 | 2025 Jul 31 14:21:52 | 73.6225 | 0.00269 | 16.9634 | 168.6091 | 293.5382 | 12.40795 | 4.743 |