Orbital elements of COSMOS 381
| Launched | 1 December 1970 |
| Flight ended | – |
| Launch site | Plesetsk Missile and Space Complex, Russia |
| Owner | Commonwealth of Independent States (former USSR) |
| NORAD ID | 4783 |
| 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 May 13 17:58 | 2026 May 10 06:51:04 | 74.0326 | 0.00297 | 4.9546 | 102.7738 | 257.6707 | 13.75043 | 6.743 |
| 2026 May 12 17:58 | 2026 May 10 06:51:04 | 74.0326 | 0.00297 | 4.9546 | 102.7738 | 257.6707 | 13.75043 | 6.743 |
| 2026 May 11 17:56 | 2026 May 10 06:51:04 | 74.0326 | 0.00297 | 4.9546 | 102.7738 | 257.6707 | 13.75043 | 6.743 |
| 2026 May 10 17:57 | 2026 May 10 06:51:04 | 74.0326 | 0.00297 | 4.9546 | 102.7738 | 257.6707 | 13.75043 | 6.743 |
| 2026 May 09 17:57 | 2026 May 05 08:07:08 | 74.0319 | 0.00297 | 5.5020 | 112.3699 | 257.6707 | 13.75043 | 6.743 |
| 2026 May 08 17:57 | 2026 May 05 08:07:08 | 74.0319 | 0.00297 | 5.5020 | 112.3699 | 257.6707 | 13.75043 | 6.743 |
| 2026 May 07 17:58 | 2026 May 05 08:07:08 | 74.0319 | 0.00297 | 5.5020 | 112.3699 | 257.6707 | 13.75043 | 6.743 |
| 2026 May 06 17:57 | 2026 May 05 08:07:08 | 74.0319 | 0.00297 | 5.5020 | 112.3699 | 257.6707 | 13.75043 | 6.743 |
| 2026 May 05 17:57 | 2026 May 05 08:07:08 | 74.0319 | 0.00297 | 5.5020 | 112.3699 | 257.6707 | 13.75043 | 6.743 |
| 2026 May 04 17:57 | 2026 Apr 30 14:37:29 | 74.0312 | 0.00298 | 6.0252 | 121.5309 | 257.6707 | 13.75043 | 6.743 |
| 2026 May 03 17:57 | 2026 Apr 30 14:37:29 | 74.0312 | 0.00298 | 6.0252 | 121.5309 | 257.6707 | 13.75043 | 6.743 |
| 2026 May 02 17:57 | 2026 Apr 30 14:37:29 | 74.0312 | 0.00298 | 6.0252 | 121.5309 | 257.6707 | 13.75043 | 6.743 |
| 2026 May 01 17:56 | 2026 Apr 30 14:37:29 | 74.0312 | 0.00298 | 6.0252 | 121.5309 | 257.6707 | 13.75043 | 6.743 |
| 2026 Apr 30 17:56 | 2026 Apr 30 14:37:29 | 74.0312 | 0.00298 | 6.0252 | 121.5309 | 257.6707 | 13.75043 | 6.743 |
| 2026 Apr 29 17:57 | 2026 Apr 24 10:12:32 | 74.0301 | 0.00299 | 6.7094 | 133.4695 | 257.6707 | 13.75043 | 6.743 |
| 2026 Apr 28 17:56 | 2026 Apr 24 10:12:32 | 74.0301 | 0.00299 | 6.7094 | 133.4695 | 257.6707 | 13.75043 | 6.743 |
| 2026 Apr 27 17:58 | 2026 Apr 24 10:12:32 | 74.0301 | 0.00299 | 6.7094 | 133.4695 | 257.6707 | 13.75043 | 6.743 |
| 2026 Apr 26 17:58 | 2026 Apr 24 10:12:32 | 74.0301 | 0.00299 | 6.7094 | 133.4695 | 257.6707 | 13.75043 | 6.743 |
| 2026 Apr 25 17:58 | 2026 Apr 24 10:12:32 | 74.0301 | 0.00299 | 6.7094 | 133.4695 | 257.6707 | 13.75043 | 6.743 |
| 2026 Apr 24 17:59 | 2026 Apr 24 10:12:32 | 74.0301 | 0.00299 | 6.7094 | 133.4695 | 257.6707 | 13.75043 | 6.743 |
| 2026 Apr 23 17:57 | 2026 Apr 19 11:28:35 | 74.0298 | 0.00300 | 7.2568 | 142.9777 | 257.6707 | 13.75043 | 6.743 |
| 2026 Apr 22 17:57 | 2026 Apr 19 11:28:35 | 74.0298 | 0.00300 | 7.2568 | 142.9777 | 257.6707 | 13.75043 | 6.743 |
| 2026 Apr 21 17:57 | 2026 Apr 19 11:28:35 | 74.0298 | 0.00300 | 7.2568 | 142.9777 | 257.6707 | 13.75043 | 6.743 |
| 2026 Apr 20 17:57 | 2026 Apr 19 11:28:35 | 74.0298 | 0.00300 | 7.2568 | 142.9777 | 257.6707 | 13.75043 | 6.743 |
| 2026 Apr 19 17:58 | 2026 Apr 19 11:28:35 | 74.0298 | 0.00300 | 7.2568 | 142.9777 | 257.6707 | 13.75043 | 6.743 |
| 2026 Apr 18 17:56 | 2026 Apr 13 07:03:38 | 74.0299 | 0.00302 | 7.9410 | 154.7899 | 257.6707 | 13.75043 | 6.743 |
| 2026 Apr 16 17:57 | 2026 Apr 13 07:03:38 | 74.0299 | 0.00302 | 7.9410 | 154.7899 | 257.6707 | 13.75043 | 6.743 |