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 Jan 01 18:56 | 2025 Dec 31 11:55:38 | 82.9616 | 0.00187 | 10.1231 | 156.0751 | 270.7064 | 12.06916 | – |
| 2025 Dec 31 18:57 | 2025 Dec 31 11:55:38 | 82.9616 | 0.00187 | 10.1231 | 156.0751 | 270.7064 | 12.06916 | – |
| 2025 Dec 30 18:56 | 2025 Dec 26 12:32:28 | 82.9610 | 0.00186 | 10.3038 | 165.9932 | 270.7064 | 12.06916 | – |
| 2025 Dec 29 18:56 | 2025 Dec 26 12:32:28 | 82.9610 | 0.00186 | 10.3038 | 165.9932 | 270.7064 | 12.06916 | – |
| 2025 Dec 28 18:57 | 2025 Dec 26 12:32:28 | 82.9610 | 0.00186 | 10.3038 | 165.9932 | 270.7064 | 12.06916 | – |
| 2025 Dec 27 18:57 | 2025 Dec 26 12:32:28 | 82.9610 | 0.00186 | 10.3038 | 165.9932 | 270.7064 | 12.06916 | – |
| 2025 Dec 26 18:56 | 2025 Dec 26 12:32:28 | 82.9610 | 0.00186 | 10.3038 | 165.9932 | 270.7064 | 12.06916 | – |
| 2025 Dec 25 18:57 | 2025 Dec 20 13:19:35 | 82.9608 | 0.00184 | 10.5207 | 178.2444 | 270.7064 | 12.06916 | – |
| 2025 Dec 24 18:56 | 2025 Dec 20 13:19:35 | 82.9608 | 0.00184 | 10.5207 | 178.2444 | 270.7064 | 12.06916 | – |
| 2025 Dec 23 18:56 | 2025 Dec 20 13:19:35 | 82.9608 | 0.00184 | 10.5207 | 178.2444 | 270.7064 | 12.06916 | – |
| 2025 Dec 22 18:57 | 2025 Dec 20 13:19:35 | 82.9608 | 0.00184 | 10.5207 | 178.2444 | 270.7064 | 12.06916 | – |
| 2025 Dec 21 18:57 | 2025 Dec 20 13:19:35 | 82.9608 | 0.00184 | 10.5207 | 178.2444 | 270.7064 | 12.06916 | – |
| 2025 Dec 20 18:57 | 2025 Dec 20 13:19:35 | 82.9608 | 0.00184 | 10.5207 | 178.2444 | 270.7064 | 12.06916 | – |
| 2025 Dec 19 18:57 | 2025 Dec 12 06:57:40 | 82.9607 | 0.00181 | 10.8210 | 195.5167 | 270.7064 | 12.06916 | – |
| 2025 Dec 18 18:57 | 2025 Dec 12 06:57:40 | 82.9607 | 0.00181 | 10.8210 | 195.5167 | 270.7064 | 12.06916 | – |
| 2025 Dec 17 18:58 | 2025 Dec 12 06:57:40 | 82.9607 | 0.00181 | 10.8210 | 195.5167 | 270.7064 | 12.06916 | – |
| 2025 Dec 16 18:57 | 2025 Dec 12 06:57:40 | 82.9607 | 0.00181 | 10.8210 | 195.5167 | 270.7064 | 12.06916 | – |
| 2025 Dec 15 18:58 | 2025 Dec 12 06:57:40 | 82.9607 | 0.00181 | 10.8210 | 195.5167 | 270.7064 | 12.06916 | – |
| 2025 Dec 14 18:56 | 2025 Dec 12 06:57:40 | 82.9607 | 0.00181 | 10.8210 | 195.5167 | 270.7064 | 12.06916 | – |
| 2025 Dec 13 18:56 | 2025 Dec 12 06:57:40 | 82.9607 | 0.00181 | 10.8210 | 195.5167 | 270.7064 | 12.06916 | – |
| 2025 Dec 12 18:57 | 2025 Dec 12 06:57:40 | 82.9607 | 0.00181 | 10.8210 | 195.5167 | 270.7064 | 12.06916 | – |
| 2025 Dec 11 18:56 | 2025 Dec 07 07:35:26 | 82.9609 | 0.00180 | 11.0017 | 206.0196 | 270.7064 | 12.06916 | – |
| 2025 Dec 10 18:56 | 2025 Dec 07 07:35:26 | 82.9609 | 0.00180 | 11.0017 | 206.0196 | 270.7064 | 12.06916 | – |
| 2025 Dec 09 18:56 | 2025 Dec 07 07:35:26 | 82.9609 | 0.00180 | 11.0017 | 206.0196 | 270.7064 | 12.06916 | – |
| 2025 Dec 08 18:56 | 2025 Dec 07 07:35:26 | 82.9609 | 0.00180 | 11.0017 | 206.0196 | 270.7064 | 12.06916 | – |
| 2025 Dec 07 18:56 | 2025 Dec 07 07:35:26 | 82.9609 | 0.00180 | 11.0017 | 206.0196 | 270.7064 | 12.06916 | – |
| 2025 Dec 06 18:56 | 2025 Dec 02 11:18:28 | 82.9611 | 0.00179 | 11.1777 | 216.2417 | 270.7064 | 12.06916 | – |
| 2025 Dec 05 18:57 | 2025 Dec 02 11:18:28 | 82.9611 | 0.00179 | 11.1777 | 216.2417 | 270.7064 | 12.06916 | – |