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 Oct 15 17:56 | 2025 Oct 07 09:54:17 | 73.6250 | 0.00266 | 10.9127 | 69.2414 | 103.8036 | 12.40796 | 4.743 |
| 2025 Oct 14 17:56 | 2025 Oct 07 09:54:17 | 73.6250 | 0.00266 | 10.9127 | 69.2414 | 103.8036 | 12.40796 | 4.743 |
| 2025 Oct 12 17:56 | 2025 Oct 07 09:54:17 | 73.6250 | 0.00266 | 10.9127 | 69.2414 | 103.8036 | 12.40796 | 4.743 |
| 2025 Oct 11 17:57 | 2025 Oct 07 09:54:17 | 73.6250 | 0.00266 | 10.9127 | 69.2414 | 103.8036 | 12.40796 | 4.743 |
| 2025 Oct 09 17:56 | 2025 Oct 07 09:54:17 | 73.6250 | 0.00266 | 10.9127 | 69.2414 | 103.8036 | 12.40796 | 4.743 |
| 2025 Oct 08 17:56 | 2025 Oct 07 09:54:17 | 73.6250 | 0.00266 | 10.9127 | 69.2414 | 103.8036 | 12.40796 | 4.743 |
| 2025 Oct 07 17:56 | 2025 Oct 07 09:54:17 | 73.6250 | 0.00266 | 10.9127 | 69.2414 | 103.8036 | 12.40796 | 4.743 |
| 2025 Oct 05 17:56 | 2025 Sep 26 04:51:27 | 73.6264 | 0.00265 | 11.9128 | 85.6961 | 103.8036 | 12.40796 | 4.743 |
| 2025 Oct 04 17:57 | 2025 Sep 26 04:51:27 | 73.6264 | 0.00265 | 11.9128 | 85.6961 | 103.8036 | 12.40796 | 4.743 |
| 2025 Oct 03 17:57 | 2025 Sep 26 04:51:27 | 73.6264 | 0.00265 | 11.9128 | 85.6961 | 103.8036 | 12.40796 | 4.743 |
| 2025 Oct 02 17:56 | 2025 Sep 26 04:51:27 | 73.6264 | 0.00265 | 11.9128 | 85.6961 | 103.8036 | 12.40796 | 4.743 |
| 2025 Sep 30 17:56 | 2025 Sep 26 04:51:27 | 73.6264 | 0.00265 | 11.9128 | 85.6961 | 103.8036 | 12.40796 | 4.743 |
| 2025 Sep 29 17:56 | 2025 Sep 26 04:51:27 | 73.6264 | 0.00265 | 11.9128 | 85.6961 | 103.8036 | 12.40796 | 4.743 |
| 2025 Sep 28 17:56 | 2025 Sep 26 04:51:27 | 73.6264 | 0.00265 | 11.9128 | 85.6961 | 103.8036 | 12.40796 | 4.743 |
| 2025 Sep 27 17:56 | 2025 Sep 26 04:51:27 | 73.6264 | 0.00265 | 11.9128 | 85.6961 | 103.8036 | 12.40796 | 4.743 |
| 2025 Sep 26 17:56 | 2025 Sep 26 04:51:27 | 73.6264 | 0.00265 | 11.9128 | 85.6961 | 103.8036 | 12.40796 | 4.743 |
| 2025 Sep 25 17:56 | 2025 Sep 20 01:02:36 | 73.6261 | 0.00264 | 12.4623 | 94.7876 | 103.8036 | 12.40796 | 4.743 |
| 2025 Sep 24 17:56 | 2025 Sep 20 01:02:36 | 73.6261 | 0.00264 | 12.4623 | 94.7876 | 103.8036 | 12.40796 | 4.743 |
| 2025 Sep 20 17:56 | 2025 Sep 20 01:02:36 | 73.6261 | 0.00264 | 12.4623 | 94.7876 | 103.8036 | 12.40796 | 4.743 |
| 2025 Sep 19 17:56 | 2025 Sep 15 05:49:37 | 73.6259 | 0.00264 | 12.8905 | 101.8746 | 103.8036 | 12.40796 | 4.743 |
| 2025 Sep 18 17:56 | 2025 Sep 15 05:49:37 | 73.6259 | 0.00264 | 12.8905 | 101.8746 | 103.8036 | 12.40796 | 4.743 |