| Primary satellite | Secondary satellite |
| Name | Cosmos 2150 Rocket | FENGYUN 1C DEB |
| Spacetrack catalog number | 21419 | 30017 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2021 Jan 19 20:12 | 2021 Jan 19 13:04 |
| Time of closest approach (UTC) | 2020 Dec 07 13:42:38.702 |
| Minimum distance | 19.989 km |
| Height difference | -2.881 km |
| Relative speed | 13.266 km/s |
| Angle between velocity vectors | 127° |
| Geographic position | 74.1°S, 130.0°E |
| Height | 832 km |
|