| Primary satellite | Secondary satellite |
| Name | COSMOS 2251 DEB | FENGYUN 1C DEB |
| Spacetrack catalog number | 33994 | 33716 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 23 12:16 | 2024 Dec 17 11:27 |
| Time of closest approach (UTC) | 2024 Dec 26 02:52:10.117 |
| Minimum distance | 4.775 km |
| Height difference | -2.244 km |
| Relative speed | 14.502 km/s |
| Angle between velocity vectors | 152° |
| Geographic position | 70.7°S, 71.7°W |
| Height | 773 km |
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