Orbital elements of COSMOS 1861
| Launched | 22 June 1987 |
| Flight ended | – |
| Launch site | Plesetsk Missile and Space Complex, Russia |
| Owner | Commonwealth of Independent States (former USSR) |
| NORAD ID | 18129 |
| 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 |
| 2026 Mar 02 18:57 | 2026 Feb 26 11:31:11 | 82.9237 | 0.00102 | 2.9862 | 260.8758 | 214.3226 | 13.73257 | 6.743 |
| 2026 Mar 01 18:57 | 2026 Feb 26 11:31:11 | 82.9237 | 0.00102 | 2.9862 | 260.8758 | 214.3226 | 13.73257 | 6.743 |
| 2026 Feb 28 18:56 | 2026 Feb 26 11:31:11 | 82.9237 | 0.00102 | 2.9862 | 260.8758 | 214.3226 | 13.73257 | 6.743 |
| 2026 Feb 27 19:05 | 2026 Feb 26 11:31:11 | 82.9237 | 0.00102 | 2.9862 | 260.8758 | 214.3226 | 13.73257 | 6.743 |
| 2026 Feb 26 20:45 | 2026 Feb 26 11:31:11 | 82.9237 | 0.00102 | 2.9862 | 260.8758 | 214.3226 | 13.73257 | 6.743 |
| 2026 Feb 05 18:58 | 2026 Feb 02 12:11:48 | 82.9224 | 0.00109 | 4.1700 | 334.6568 | 214.3226 | 13.73257 | 6.743 |
| 2026 Feb 04 18:57 | 2026 Feb 02 12:11:48 | 82.9224 | 0.00109 | 4.1700 | 334.6568 | 214.3226 | 13.73257 | 6.743 |
| 2026 Feb 03 18:56 | 2026 Feb 02 12:11:48 | 82.9224 | 0.00109 | 4.1700 | 334.6568 | 214.3226 | 13.73257 | 6.743 |