| Primary satellite | Secondary satellite |
| Name | deb Kosmos-1275 | COSMOS 2251 DEB |
| Spacetrack catalog number | 17642 | 36533 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 22 21:03 | 2024 Dec 21 12:47 |
| Time of closest approach (UTC) | 2024 Dec 29 10:23:26.630 |
| Minimum distance | 2.559 km |
| Height difference | 0.102 km |
| Relative speed | 14.097 km/s |
| Angle between velocity vectors | 142° |
| Geographic position | 52.4°N, 47.1°W |
| Height | 774 km |
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