| Primary satellite | Secondary satellite |
| Name | Cosmos 1782 Rocket | FENGYUN 1C DEB |
| Spacetrack catalog number | 16987 | 29815 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2021 Jan 21 21:11 | 2021 Jan 21 09:28 |
| Time of closest approach (UTC) | 2020 Dec 05 05:52:14.014 |
| Minimum distance | 5.400 km |
| Height difference | -1.207 km |
| Relative speed | 15.156 km/s |
| Angle between velocity vectors | 174° |
| Geographic position | 79.9°N, 88.4°E |
| Height | 624 km |
|