| Primary satellite | Secondary satellite |
| Name | Transit 2A | FENGYUN 1C DEB |
| Spacetrack catalog number | 45 | 29943 |
| Radar cross section | medium | medium |
| Epoch of two-line elements (UTC) | 2021 Mar 07 08:54 | 2021 Mar 07 08:42 |
| Time of closest approach (UTC) | 2021 Jan 22 18:05:00.239 |
| Minimum distance | 40.478 km |
| Height difference | 2.140 km |
| Relative speed | 12.144 km/s |
| Angle between velocity vectors | 110° |
| Geographic position | 66.8°S, 41.5°E |
| Height | 872 km |
|