Orbital elements of COSMOS 839
| Launched | 7 July 1976 |
| Flight ended | – |
| Launch site | Plesetsk Missile and Space Complex, Russia |
| Owner | Commonwealth of Independent States (former USSR) |
| NORAD ID | 9011 |
| 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 Apr 14 17:57 | 2026 Apr 13 05:22:12 | 65.8572 | 0.07089 | 1.9589 | 312.6816 | 41.6497 | 12.32895 | – |
| 2026 Apr 13 17:57 | 2026 Apr 13 05:22:12 | 65.8572 | 0.07089 | 1.9589 | 312.6816 | 41.6497 | 12.32895 | – |
| 2026 Apr 12 17:57 | 2026 Apr 08 12:27:22 | 65.8565 | 0.07088 | 2.5652 | 314.4914 | 41.6497 | 12.32895 | – |
| 2026 Apr 11 17:57 | 2026 Apr 08 12:27:22 | 65.8565 | 0.07088 | 2.5652 | 314.4914 | 41.6497 | 12.32895 | – |
| 2026 Apr 10 17:58 | 2026 Apr 08 12:27:22 | 65.8565 | 0.07088 | 2.5652 | 314.4914 | 41.6497 | 12.32895 | – |
| 2026 Apr 09 18:01 | 2026 Apr 08 12:27:22 | 65.8565 | 0.07088 | 2.5652 | 314.4914 | 41.6497 | 12.32895 | – |
| 2026 Apr 08 17:57 | 2026 Apr 08 12:27:22 | 65.8565 | 0.07088 | 2.5652 | 314.4914 | 41.6497 | 12.32895 | – |
| 2026 Apr 07 17:57 | 2026 Apr 02 06:33:12 | 65.8550 | 0.07086 | 3.3702 | 316.8948 | 41.6497 | 12.32895 | – |
| 2026 Apr 06 17:57 | 2026 Apr 02 06:33:12 | 65.8550 | 0.07086 | 3.3702 | 316.8948 | 41.6497 | 12.32895 | – |
| 2026 Apr 05 17:56 | 2026 Apr 02 06:33:12 | 65.8550 | 0.07086 | 3.3702 | 316.8948 | 41.6497 | 12.32895 | – |
| 2026 Apr 04 17:57 | 2026 Apr 02 06:33:12 | 65.8550 | 0.07086 | 3.3702 | 316.8948 | 41.6497 | 12.32895 | – |
| 2026 Apr 03 17:56 | 2026 Apr 02 06:33:12 | 65.8550 | 0.07086 | 3.3702 | 316.8948 | 41.6497 | 12.32895 | – |
| 2026 Apr 02 18:03 | 2026 Apr 02 06:33:12 | 65.8550 | 0.07086 | 3.3702 | 316.8948 | 41.6497 | 12.32895 | – |
| 2026 Mar 31 17:57 | 2026 Mar 26 07:07:46 | 65.8533 | 0.07084 | 4.2694 | 319.5794 | 41.6497 | 12.32895 | – |
| 2026 Mar 30 17:58 | 2026 Mar 26 07:07:46 | 65.8533 | 0.07084 | 4.2694 | 319.5794 | 41.6497 | 12.32895 | – |
| 2026 Mar 29 17:57 | 2026 Mar 26 07:07:46 | 65.8533 | 0.07084 | 4.2694 | 319.5794 | 41.6497 | 12.32895 | – |
| 2026 Mar 28 18:57 | 2026 Mar 26 07:07:46 | 65.8533 | 0.07084 | 4.2694 | 319.5794 | 41.6497 | 12.32895 | – |
| 2026 Mar 27 18:57 | 2026 Mar 26 07:07:46 | 65.8533 | 0.07084 | 4.2694 | 319.5794 | 41.6497 | 12.32895 | – |
| 2026 Mar 26 18:57 | 2026 Mar 26 07:07:46 | 65.8533 | 0.07084 | 4.2694 | 319.5794 | 41.6497 | 12.32895 | – |
| 2026 Mar 25 18:56 | 2026 Mar 20 09:00:49 | 65.8522 | 0.07081 | 5.0327 | 321.8600 | 41.6497 | 12.32895 | – |
| 2026 Mar 24 18:56 | 2026 Mar 20 09:00:49 | 65.8522 | 0.07081 | 5.0327 | 321.8600 | 41.6497 | 12.32895 | – |
| 2026 Mar 23 18:56 | 2026 Mar 20 09:00:49 | 65.8522 | 0.07081 | 5.0327 | 321.8600 | 41.6497 | 12.32895 | – |
| 2026 Mar 22 18:56 | 2026 Mar 20 09:00:49 | 65.8522 | 0.07081 | 5.0327 | 321.8600 | 41.6497 | 12.32895 | – |
| 2026 Mar 21 19:05 | 2026 Mar 20 09:00:49 | 65.8522 | 0.07081 | 5.0327 | 321.8600 | 41.6497 | 12.32895 | – |
| 2026 Mar 20 18:57 | 2026 Mar 20 09:00:49 | 65.8522 | 0.07081 | 5.0327 | 321.8600 | 41.6497 | 12.32895 | – |
| 2026 Mar 19 18:56 | 2026 Mar 15 10:15:35 | 65.8516 | 0.07079 | 5.6705 | 323.7664 | 41.6497 | 12.32895 | – |