| Primary satellite | Secondary satellite |
| Name | ISS | FENGYUN 1C DEB |
| Spacetrack catalog number | 25544 | 35114 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2021 Dec 31 17:52 | 2021 Dec 31 18:38 |
| Time of closest approach (UTC) | 2021 Nov 12 01:11:20.955 |
| Minimum distance | 2304.925 km |
| Height difference | 15.493 km |
| Relative speed | 15.003 km/s |
| Angle between velocity vectors | 156° |
| Geographic position | 35.3°S, 131.2°W |
| Height | 435 km |
|