| Primary satellite | Secondary satellite |
| Name | Cosmos 2150 Rocket | FENGYUN 1C DEB |
| Spacetrack catalog number | 21419 | 37452 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2021 Jan 19 20:12 | 2020 Dec 18 16:06 |
| Time of closest approach (UTC) | 2020 Dec 06 11:46:35.289 |
| Minimum distance | 11.265 km |
| Height difference | -1.713 km |
| Relative speed | 14.051 km/s |
| Angle between velocity vectors | 140° |
| Geographic position | 73.4°N, 5.7°W |
| Height | 764 km |
|