| Primary satellite | Secondary satellite |
| Name | COSMOS 2251 DEB | DMSP 5D-3 F18 DEB |
| Spacetrack catalog number | 37530 | 36099 |
| Radar cross section | small | medium |
| Epoch of two-line elements (UTC) | 2024 Dec 19 01:13 | 2024 Dec 23 04:52 |
| Time of closest approach (UTC) | 2024 Dec 25 09:33:34.918 |
| Minimum distance | 0.476 km |
| Height difference | -0.074 km |
| Relative speed | 14.919 km/s |
| Angle between velocity vectors | 173° |
| Geographic position | 0.1°N, 20.8°E |
| Height | 769 km |
|