| Primary satellite | Secondary satellite |
| Name | Transit 2A Rocket | FENGYUN 1C DEB |
| Spacetrack catalog number | 47 | 30817 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2021 Jan 25 16:47 | 2021 Jan 25 13:11 |
| Time of closest approach (UTC) | 2020 Dec 07 04:07:20.752 |
| Minimum distance | 39.787 km |
| Height difference | 1.128 km |
| Relative speed | 5.856 km/s |
| Angle between velocity vectors | 47° |
| Geographic position | 45.0°S, 110.5°W |
| Height | 871 km |
|