| Primary satellite | Secondary satellite |
| Name | DMSP B5D2-2 | COSMOS 2251 DEB |
| Spacetrack catalog number | 14506 | 34046 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2024 Dec 23 01:20 | 2024 Dec 23 08:49 |
| Time of closest approach (UTC) | 2024 Dec 24 21:51:48.874 |
| Minimum distance | 4.215 km |
| Height difference | -2.524 km |
| Relative speed | 14.437 km/s |
| Angle between velocity vectors | 153° |
| Geographic position | 69.8°S, 115.6°E |
| Height | 822 km |
|