| Primary satellite | Secondary satellite |
| Name | COSMOS 2251 DEB | FENGYUN 1C DEB |
| Spacetrack catalog number | 35671 | 36188 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 21 12:45 | 2024 Dec 20 04:41 |
| Time of closest approach (UTC) | 2024 Dec 24 02:36:09.419 |
| Minimum distance | 2.323 km |
| Height difference | 0.297 km |
| Relative speed | 8.145 km/s |
| Angle between velocity vectors | 66° |
| Geographic position | 66.7°S, 111.1°E |
| Height | 732 km |
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