| Primary satellite | Secondary satellite |
| Name | COSMOS 2251 DEB | FENGYUN 1C DEB |
| Spacetrack catalog number | 35789 | 31615 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 22 14:34 | 2024 Dec 21 21:55 |
| Time of closest approach (UTC) | 2024 Dec 27 05:52:25.723 |
| Minimum distance | 1.047 km |
| Height difference | -0.057 km |
| Relative speed | 14.847 km/s |
| Angle between velocity vectors | 173° |
| Geographic position | 16.7°S, 151.9°W |
| Height | 812 km |
|