| Primary satellite | Secondary satellite |
| Name | Cosmos 2150 Rocket | FENGYUN 1C DEB |
| Spacetrack catalog number | 21419 | 30900 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2021 Jan 19 20:12 | 2020 Dec 25 10:34 |
| Time of closest approach (UTC) | 2020 Dec 07 11:55:51.352 |
| Minimum distance | 35.163 km |
| Height difference | -2.210 km |
| Relative speed | 7.479 km/s |
| Angle between velocity vectors | 60° |
| Geographic position | 63.9°S, 97.5°E |
| Height | 823 km |
|