Orbital elements of COSMOS 2139
| Launched | 3 April 1991 |
| Flight ended | – |
| Launch site | Tyuratam Missile and Space Center, Kazakhstan (Also known as Baikonur Cosmodrome) |
| Owner | Commonwealth of Independent States (former USSR) |
| NORAD ID | 21216 |
| Alternative names |
GLONASS GLONASS 42 GN 750 |
| 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 Feb 05 18:58 | 2026 Jan 26 05:44:45 | 64.4562 | 0.00154 | 20.6259 | 223.2790 | 136.6332 | 2.13106 | – |
| 2026 Feb 04 18:57 | 2026 Jan 26 05:44:45 | 64.4562 | 0.00154 | 20.6259 | 223.2790 | 136.6332 | 2.13106 | – |
| 2026 Feb 03 18:56 | 2026 Jan 26 05:44:45 | 64.4562 | 0.00154 | 20.6259 | 223.2790 | 136.6332 | 2.13106 | – |
| 2026 Feb 02 18:56 | 2026 Jan 26 05:44:45 | 64.4562 | 0.00154 | 20.6259 | 223.2790 | 136.6332 | 2.13106 | – |
| 2026 Feb 01 18:56 | 2026 Jan 26 05:44:45 | 64.4562 | 0.00154 | 20.6259 | 223.2790 | 136.6332 | 2.13106 | – |
| 2026 Jan 31 18:56 | 2026 Jan 26 05:44:45 | 64.4562 | 0.00154 | 20.6259 | 223.2790 | 136.6332 | 2.13106 | – |
| 2026 Jan 30 18:57 | 2026 Jan 26 05:44:45 | 64.4562 | 0.00154 | 20.6259 | 223.2790 | 136.6332 | 2.13106 | – |
| 2026 Jan 29 18:56 | 2026 Jan 26 05:44:45 | 64.4562 | 0.00154 | 20.6259 | 223.2790 | 136.6332 | 2.13106 | – |