| Primary satellite | Secondary satellite |
| Name | FENGYUN 1C DEB | COSMOS 2251 DEB |
| Spacetrack catalog number | 31420 | 35062 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2023 Jan 27 12:38 | 2023 Jan 29 01:15 |
| Time of closest approach (UTC) | 2022 Dec 02 01:55:49.646 |
| Minimum distance | 1199.856 km |
| Height difference | -18.552 km |
| Relative speed | 11.540 km/s |
| Angle between velocity vectors | 103° |
| Geographic position | 79.7°S, 29.0°E |
| Height | 902 km |
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