| Primary satellite | Secondary satellite |
| Name | FENGYUN 1C DEB | COSMOS 2251 DEB |
| Spacetrack catalog number | 30879 | 47077 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2023 Jan 31 05:53 | 2023 Jan 31 14:32 |
| Time of closest approach (UTC) | 2022 Dec 06 17:28:04.578 |
| Minimum distance | 1626.885 km |
| Height difference | 102.798 km |
| Relative speed | 14.821 km/s |
| Angle between velocity vectors | 157° |
| Geographic position | 74.2°S, 104.0°W |
| Height | 632 km |
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