| Primary satellite | Secondary satellite |
| Name | Cosmos 2056 Rocket | FENGYUN 1C DEB |
| Spacetrack catalog number | 20433 | 38826 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2021 Apr 12 14:31 | 2021 Apr 11 13:54 |
| Time of closest approach (UTC) | 2021 Mar 05 18:18:12.754 |
| Minimum distance | 64.625 km |
| Height difference | 6.539 km |
| Relative speed | 5.641 km/s |
| Angle between velocity vectors | 45° |
| Geographic position | 53.6°S, 77.3°W |
| Height | 807 km |
|