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 May 19 17:58 | 2026 May 16 15:14:16 | 82.9611 | 0.00168 | 5.1746 | 235.9520 | 297.9359 | 12.06924 | – |
| 2026 May 18 17:57 | 2026 May 16 15:14:16 | 82.9611 | 0.00168 | 5.1746 | 235.9520 | 297.9359 | 12.06924 | – |
| 2026 May 17 17:57 | 2026 May 16 15:14:16 | 82.9611 | 0.00168 | 5.1746 | 235.9520 | 297.9359 | 12.06924 | – |
| 2026 May 16 17:56 | 2026 May 16 15:14:16 | 82.9611 | 0.00168 | 5.1746 | 235.9520 | 297.9359 | 12.06924 | – |
| 2026 May 15 17:57 | 2026 May 10 09:44:17 | 82.9601 | 0.00167 | 5.4010 | 249.6426 | 297.9359 | 12.06924 | – |
| 2026 May 14 17:58 | 2026 May 10 09:44:17 | 82.9601 | 0.00167 | 5.4010 | 249.6426 | 297.9359 | 12.06924 | – |
| 2026 May 13 17:58 | 2026 May 10 09:44:17 | 82.9601 | 0.00167 | 5.4010 | 249.6426 | 297.9359 | 12.06924 | – |
| 2026 May 12 17:58 | 2026 May 10 09:44:17 | 82.9601 | 0.00167 | 5.4010 | 249.6426 | 297.9359 | 12.06924 | – |
| 2026 May 11 17:56 | 2026 May 10 09:44:17 | 82.9601 | 0.00167 | 5.4010 | 249.6426 | 297.9359 | 12.06924 | – |
| 2026 May 10 17:57 | 2026 May 10 09:44:17 | 82.9601 | 0.00167 | 5.4010 | 249.6426 | 297.9359 | 12.06924 | – |
| 2026 May 09 17:57 | 2026 May 05 10:23:21 | 82.9595 | 0.00167 | 5.5817 | 260.6174 | 297.9359 | 12.06924 | – |
| 2026 May 08 17:57 | 2026 May 05 10:23:21 | 82.9595 | 0.00167 | 5.5817 | 260.6174 | 297.9359 | 12.06924 | – |
| 2026 May 07 17:58 | 2026 May 05 10:23:21 | 82.9595 | 0.00167 | 5.5817 | 260.6174 | 297.9359 | 12.06924 | – |
| 2026 May 06 17:57 | 2026 May 05 10:23:21 | 82.9595 | 0.00167 | 5.5817 | 260.6174 | 297.9359 | 12.06924 | – |
| 2026 May 05 17:57 | 2026 May 05 10:23:21 | 82.9595 | 0.00167 | 5.5817 | 260.6174 | 297.9359 | 12.06924 | – |
| 2026 May 04 17:57 | 2026 Apr 30 08:58:32 | 82.9585 | 0.00168 | 5.7656 | 271.7412 | 297.9359 | 12.06924 | – |
| 2026 May 03 17:57 | 2026 Apr 30 08:58:32 | 82.9585 | 0.00168 | 5.7656 | 271.7412 | 297.9359 | 12.06924 | – |
| 2026 May 02 17:57 | 2026 Apr 30 08:58:32 | 82.9585 | 0.00168 | 5.7656 | 271.7412 | 297.9359 | 12.06924 | – |
| 2026 May 01 17:56 | 2026 Apr 30 08:58:32 | 82.9585 | 0.00168 | 5.7656 | 271.7412 | 297.9359 | 12.06924 | – |
| 2026 Apr 30 17:56 | 2026 Apr 30 08:58:32 | 82.9585 | 0.00168 | 5.7656 | 271.7412 | 297.9359 | 12.06924 | – |
| 2026 Apr 29 17:57 | 2026 Apr 24 05:10:44 | 82.9572 | 0.00168 | 5.9895 | 285.2384 | 297.9359 | 12.06924 | – |
| 2026 Apr 28 17:56 | 2026 Apr 24 05:10:44 | 82.9572 | 0.00168 | 5.9895 | 285.2384 | 297.9359 | 12.06924 | – |
| 2026 Apr 27 17:58 | 2026 Apr 24 05:10:44 | 82.9572 | 0.00168 | 5.9895 | 285.2384 | 297.9359 | 12.06924 | – |
| 2026 Apr 26 17:58 | 2026 Apr 24 05:10:44 | 82.9572 | 0.00168 | 5.9895 | 285.2384 | 297.9359 | 12.06924 | – |
| 2026 Apr 25 17:58 | 2026 Apr 24 05:10:44 | 82.9572 | 0.00168 | 5.9895 | 285.2384 | 297.9359 | 12.06924 | – |
| 2026 Apr 24 17:59 | 2026 Apr 24 05:10:44 | 82.9572 | 0.00168 | 5.9895 | 285.2384 | 297.9359 | 12.06924 | – |
| 2026 Apr 23 17:57 | 2026 Apr 19 05:48:32 | 82.9564 | 0.00169 | 6.1704 | 296.0992 | 297.9359 | 12.06924 | – |
| 2026 Apr 22 17:57 | 2026 Apr 19 05:48:32 | 82.9564 | 0.00169 | 6.1704 | 296.0992 | 297.9359 | 12.06924 | – |