| Primary satellite | Secondary satellite |
| Name | COSMOS 2251 DEB | deb Kosmos-1275 |
| Spacetrack catalog number | 34913 | 15766 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 23 07:23 | 2024 Dec 22 12:03 |
| Time of closest approach (UTC) | 2024 Dec 29 15:07:27.278 |
| Minimum distance | 3.642 km |
| Height difference | -3.073 km |
| Relative speed | 14.642 km/s |
| Angle between velocity vectors | 157° |
| Geographic position | 5.5°S, 126.6°W |
| Height | 769 km |
|