Orbital elements of RADIO 4
| Launched | 16 December 1981 |
| Flight ended | – |
| Launch site | Plesetsk Missile and Space Complex, Russia |
| Owner | Commonwealth of Independent States (former USSR) |
| NORAD ID | 13000 |
| 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 Feb 02 07:41:45 | 82.9641 | 0.00189 | 8.9307 | 91.5680 | 323.3268 | 12.06920 | – |
| 2026 Feb 04 18:57 | 2026 Feb 02 07:41:45 | 82.9641 | 0.00189 | 8.9307 | 91.5680 | 323.3268 | 12.06920 | – |
| 2026 Feb 03 18:56 | 2026 Feb 02 07:41:45 | 82.9641 | 0.00189 | 8.9307 | 91.5680 | 323.3268 | 12.06920 | – |
| 2026 Feb 02 18:56 | 2026 Feb 02 07:41:45 | 82.9641 | 0.00189 | 8.9307 | 91.5680 | 323.3268 | 12.06920 | – |
| 2026 Feb 01 18:56 | 2026 Jan 27 19:02:27 | 82.9640 | 0.00189 | 9.1314 | 102.3201 | 323.3268 | 12.06920 | – |
| 2026 Jan 31 18:56 | 2026 Jan 27 19:02:27 | 82.9640 | 0.00189 | 9.1314 | 102.3201 | 323.3268 | 12.06920 | – |
| 2026 Jan 30 18:57 | 2026 Jan 27 19:02:27 | 82.9640 | 0.00189 | 9.1314 | 102.3201 | 323.3268 | 12.06920 | – |
| 2026 Jan 29 18:56 | 2026 Jan 27 19:02:27 | 82.9640 | 0.00189 | 9.1314 | 102.3201 | 323.3268 | 12.06920 | – |
| 2026 Jan 28 18:56 | 2026 Jan 27 19:02:27 | 82.9640 | 0.00189 | 9.1314 | 102.3201 | 323.3268 | 12.06920 | – |
| 2026 Jan 27 18:56 | 2026 Jan 22 06:56:28 | 82.9633 | 0.00190 | 9.3313 | 113.0513 | 323.3268 | 12.06920 | – |
| 2026 Jan 26 18:57 | 2026 Jan 22 06:56:28 | 82.9633 | 0.00190 | 9.3313 | 113.0513 | 323.3268 | 12.06920 | – |
| 2026 Jan 25 18:57 | 2026 Jan 22 06:56:28 | 82.9633 | 0.00190 | 9.3313 | 113.0513 | 323.3268 | 12.06920 | – |
| 2026 Jan 24 18:58 | 2026 Jan 22 06:56:28 | 82.9633 | 0.00190 | 9.3313 | 113.0513 | 323.3268 | 12.06920 | – |
| 2026 Jan 22 18:56 | 2026 Jan 22 06:56:28 | 82.9633 | 0.00190 | 9.3313 | 113.0513 | 323.3268 | 12.06920 | – |
| 2026 Jan 21 18:56 | 2026 Jan 16 15:34:25 | 82.9629 | 0.00190 | 9.5363 | 124.1208 | 323.3268 | 12.06920 | – |