| Primary satellite | Secondary satellite |
| Name | COSMOS 2251 DEB | COSMOS 2251 DEB |
| Spacetrack catalog number | 35031 | 33948 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 21 05:55 | 2024 Dec 23 03:01 |
| Time of closest approach (UTC) | 2024 Dec 24 01:10:08.283 |
| Minimum distance | 3.650 km |
| Height difference | -1.059 km |
| Relative speed | 5.290 km/s |
| Angle between velocity vectors | 41° |
| Geographic position | 73.0°N, 168.3°W |
| Height | 777 km |
|