Orbital elements of COSMOS 839 DEB
| Launched | 7 July 1976 |
| Flight ended | – |
| Launch site | Plesetsk Missile and Space Complex, Russia |
| Owner | Commonwealth of Independent States (former USSR) |
| NORAD ID | 21128 |
| 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 Sep 15 17:56 | 2025 Sep 13 15:59:56 | 66.0408 | 0.06788 | 1.9736 | 195.9030 | 185.2912 | 12.42039 | – |
| 2025 Sep 12 17:57 | 2025 Sep 03 05:38:27 | 66.0386 | 0.06786 | 3.3304 | 200.2504 | 185.2912 | 12.42039 | – |
| 2025 Sep 11 17:57 | 2025 Sep 03 05:38:27 | 66.0386 | 0.06786 | 3.3304 | 200.2504 | 185.2912 | 12.42039 | – |
| 2025 Sep 10 17:56 | 2025 Sep 03 05:38:27 | 66.0386 | 0.06786 | 3.3304 | 200.2504 | 185.2912 | 12.42039 | – |
| 2025 Sep 08 17:57 | 2025 Sep 03 05:38:27 | 66.0386 | 0.06786 | 3.3304 | 200.2504 | 185.2912 | 12.42039 | – |
| 2025 Sep 07 17:56 | 2025 Sep 03 05:38:27 | 66.0386 | 0.06786 | 3.3304 | 200.2504 | 185.2912 | 12.42039 | – |
| 2025 Sep 06 20:41 | 2025 Sep 03 05:38:27 | 66.0386 | 0.06786 | 3.3304 | 200.2504 | 185.2912 | 12.42039 | – |
| 2025 Sep 03 17:57 | 2025 Sep 03 05:38:27 | 66.0386 | 0.06786 | 3.3304 | 200.2504 | 185.2912 | 12.42039 | – |
| 2025 Sep 02 17:56 | 2025 Aug 27 20:38:54 | 66.0376 | 0.06784 | 4.1596 | 202.9351 | 185.2912 | 12.42039 | – |
| 2025 Sep 01 17:56 | 2025 Aug 27 20:38:54 | 66.0376 | 0.06784 | 4.1596 | 202.9351 | 185.2912 | 12.42039 | – |
| 2025 Aug 31 17:56 | 2025 Aug 27 20:38:54 | 66.0376 | 0.06784 | 4.1596 | 202.9351 | 185.2912 | 12.42039 | – |
| 2025 Aug 30 17:56 | 2025 Aug 27 20:38:54 | 66.0376 | 0.06784 | 4.1596 | 202.9351 | 185.2912 | 12.42039 | – |
| 2025 Aug 29 17:56 | 2025 Aug 27 20:38:54 | 66.0376 | 0.06784 | 4.1596 | 202.9351 | 185.2912 | 12.42039 | – |
| 2025 Aug 28 17:57 | 2025 Aug 27 20:38:54 | 66.0376 | 0.06784 | 4.1596 | 202.9351 | 185.2912 | 12.42039 | – |
| 2025 Aug 27 17:56 | 2025 Aug 23 06:48:57 | 66.0369 | 0.06783 | 4.7549 | 204.8738 | 185.2912 | 12.42039 | – |
| 2025 Aug 26 17:56 | 2025 Aug 23 06:48:57 | 66.0369 | 0.06783 | 4.7549 | 204.8738 | 185.2912 | 12.42039 | – |
| 2025 Aug 25 17:56 | 2025 Aug 23 06:48:57 | 66.0369 | 0.06783 | 4.7549 | 204.8738 | 185.2912 | 12.42039 | – |
| 2025 Aug 24 17:56 | 2025 Aug 23 06:48:57 | 66.0369 | 0.06783 | 4.7549 | 204.8738 | 185.2912 | 12.42039 | – |
| 2025 Aug 23 17:56 | 2025 Aug 23 06:48:57 | 66.0369 | 0.06783 | 4.7549 | 204.8738 | 185.2912 | 12.42039 | – |
| 2025 Aug 22 17:56 | 2025 Aug 17 07:48:12 | 66.0366 | 0.06783 | 5.5300 | 207.4119 | 185.2912 | 12.42039 | – |
| 2025 Aug 20 17:56 | 2025 Aug 17 07:48:12 | 66.0366 | 0.06783 | 5.5300 | 207.4119 | 185.2912 | 12.42039 | – |