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 |
| 2026 Mar 12 18:57 | 2026 Mar 10 09:29:42 | 66.0401 | 0.06636 | 2.8596 | 120.3841 | 32.5658 | 12.42137 | – |
| 2026 Mar 11 18:56 | 2026 Mar 10 09:29:42 | 66.0401 | 0.06636 | 2.8596 | 120.3841 | 32.5658 | 12.42137 | – |
| 2026 Mar 10 18:56 | 2026 Mar 10 09:29:42 | 66.0401 | 0.06636 | 2.8596 | 120.3841 | 32.5658 | 12.42137 | – |
| 2026 Mar 09 18:56 | 2026 Mar 04 10:07:19 | 66.0393 | 0.06637 | 3.6364 | 122.9742 | 32.5658 | 12.42137 | – |
| 2026 Mar 08 18:57 | 2026 Mar 04 10:07:19 | 66.0393 | 0.06637 | 3.6364 | 122.9742 | 32.5658 | 12.42137 | – |
| 2026 Mar 07 18:57 | 2026 Mar 04 10:07:19 | 66.0393 | 0.06637 | 3.6364 | 122.9742 | 32.5658 | 12.42137 | – |
| 2026 Mar 06 18:56 | 2026 Mar 04 10:07:19 | 66.0393 | 0.06637 | 3.6364 | 122.9742 | 32.5658 | 12.42137 | – |
| 2026 Mar 05 18:56 | 2026 Mar 04 10:07:19 | 66.0393 | 0.06637 | 3.6364 | 122.9742 | 32.5658 | 12.42137 | – |
| 2026 Mar 04 18:57 | 2026 Mar 04 10:07:19 | 66.0393 | 0.06637 | 3.6364 | 122.9742 | 32.5658 | 12.42137 | – |
| 2026 Mar 03 18:56 | 2026 Feb 26 11:29:45 | 66.0385 | 0.06639 | 4.4091 | 125.5492 | 32.5658 | 12.42137 | – |
| 2026 Mar 02 18:57 | 2026 Feb 26 11:29:45 | 66.0385 | 0.06639 | 4.4091 | 125.5492 | 32.5658 | 12.42137 | – |
| 2026 Mar 01 18:57 | 2026 Feb 26 11:29:45 | 66.0385 | 0.06639 | 4.4091 | 125.5492 | 32.5658 | 12.42137 | – |
| 2026 Feb 28 18:56 | 2026 Feb 26 11:29:45 | 66.0385 | 0.06639 | 4.4091 | 125.5492 | 32.5658 | 12.42137 | – |
| 2026 Feb 27 19:05 | 2026 Feb 26 11:29:45 | 66.0385 | 0.06639 | 4.4091 | 125.5492 | 32.5658 | 12.42137 | – |
| 2026 Feb 26 20:45 | 2026 Feb 26 11:29:45 | 66.0385 | 0.06639 | 4.4091 | 125.5492 | 32.5658 | 12.42137 | – |