Orbital elements of COSMOS 1891
| Launched | 13 October 1987 |
| Flight ended | – |
| Launch site | Plesetsk Missile and Space Complex, Russia |
| Owner | Commonwealth of Independent States (former USSR) |
| NORAD ID | 18402 |
| 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 19 18:56 | 2026 Mar 15 12:43:31 | 82.9186 | 0.00513 | 18.9583 | 60.1011 | 300.5229 | 13.73924 | 6.743 |
| 2026 Mar 18 18:56 | 2026 Mar 15 12:43:31 | 82.9186 | 0.00513 | 18.9583 | 60.1011 | 300.5229 | 13.73924 | 6.743 |
| 2026 Mar 17 18:56 | 2026 Mar 15 12:43:31 | 82.9186 | 0.00513 | 18.9583 | 60.1011 | 300.5229 | 13.73924 | 6.743 |
| 2026 Mar 16 18:57 | 2026 Mar 15 12:43:31 | 82.9186 | 0.00513 | 18.9583 | 60.1011 | 300.5229 | 13.73924 | 6.743 |
| 2026 Mar 15 18:56 | 2026 Mar 15 12:43:31 | 82.9186 | 0.00513 | 18.9583 | 60.1011 | 300.5229 | 13.73924 | 6.743 |
| 2026 Mar 14 18:56 | 2026 Mar 10 03:23:16 | 82.9193 | 0.00515 | 19.2248 | 74.6851 | 300.5229 | 13.73924 | 6.743 |
| 2026 Mar 13 18:57 | 2026 Mar 10 03:23:16 | 82.9193 | 0.00515 | 19.2248 | 74.6851 | 300.5229 | 13.73924 | 6.743 |
| 2026 Mar 12 18:57 | 2026 Mar 10 03:23:16 | 82.9193 | 0.00515 | 19.2248 | 74.6851 | 300.5229 | 13.73924 | 6.743 |
| 2026 Mar 11 18:56 | 2026 Mar 10 03:23:16 | 82.9193 | 0.00515 | 19.2248 | 74.6851 | 300.5229 | 13.73924 | 6.743 |
| 2026 Mar 10 18:56 | 2026 Mar 10 03:23:16 | 82.9193 | 0.00515 | 19.2248 | 74.6851 | 300.5229 | 13.73924 | 6.743 |
| 2026 Mar 09 18:56 | 2026 Mar 04 04:04:04 | 82.9204 | 0.00515 | 19.5202 | 90.8740 | 300.5229 | 13.73924 | 6.743 |
| 2026 Mar 08 18:57 | 2026 Mar 04 04:04:04 | 82.9204 | 0.00515 | 19.5202 | 90.8740 | 300.5229 | 13.73924 | 6.743 |
| 2026 Mar 07 18:57 | 2026 Mar 04 04:04:04 | 82.9204 | 0.00515 | 19.5202 | 90.8740 | 300.5229 | 13.73924 | 6.743 |
| 2026 Mar 06 18:56 | 2026 Mar 04 04:04:04 | 82.9204 | 0.00515 | 19.5202 | 90.8740 | 300.5229 | 13.73924 | 6.743 |
| 2026 Mar 05 18:56 | 2026 Mar 04 04:04:04 | 82.9204 | 0.00515 | 19.5202 | 90.8740 | 300.5229 | 13.73924 | 6.743 |
| 2026 Mar 04 18:57 | 2026 Mar 04 04:04:04 | 82.9204 | 0.00515 | 19.5202 | 90.8740 | 300.5229 | 13.73924 | 6.743 |
| 2026 Mar 03 18:56 | 2026 Feb 26 15:14:04 | 82.9213 | 0.00515 | 19.7938 | 105.8641 | 300.5229 | 13.73924 | 6.743 |
| 2026 Mar 02 18:57 | 2026 Feb 26 15:14:04 | 82.9213 | 0.00515 | 19.7938 | 105.8641 | 300.5229 | 13.73924 | 6.743 |
| 2026 Mar 01 18:57 | 2026 Feb 26 15:14:04 | 82.9213 | 0.00515 | 19.7938 | 105.8641 | 300.5229 | 13.73924 | 6.743 |
| 2026 Feb 28 18:56 | 2026 Feb 26 15:14:04 | 82.9213 | 0.00515 | 19.7938 | 105.8641 | 300.5229 | 13.73924 | 6.743 |
| 2026 Feb 27 19:05 | 2026 Feb 26 15:14:04 | 82.9213 | 0.00515 | 19.7938 | 105.8641 | 300.5229 | 13.73924 | 6.743 |
| 2026 Feb 26 20:45 | 2026 Feb 26 15:14:04 | 82.9213 | 0.00515 | 19.7938 | 105.8641 | 300.5229 | 13.73924 | 6.743 |