| Primary satellite | Secondary satellite |
| Name | Okean 2 Rocket | FENGYUN 1C DEB |
| Spacetrack catalog number | 20511 | 31802 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2021 Jan 15 13:04 | 2021 Jan 14 11:02 |
| Time of closest approach (UTC) | 2020 Nov 30 12:35:44.396 |
| Minimum distance | 6.582 km |
| Height difference | 2.300 km |
| Relative speed | 15.065 km/s |
| Angle between velocity vectors | 179° |
| Geographic position | 8.7°N, 138.6°E |
| Height | 638 km |
|