| Primary satellite | Secondary satellite |
| Name | deb Kosmos-1275 | DMSP 5D-2 F11 DEB |
| Spacetrack catalog number | 12658 | 28312 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 23 01:26 | 2024 Dec 22 13:34 |
| Time of closest approach (UTC) | 2024 Dec 28 19:41:36.748 |
| Minimum distance | 3.136 km |
| Height difference | -2.524 km |
| Relative speed | 14.879 km/s |
| Angle between velocity vectors | 178° |
| Geographic position | 18.2°N, 1.9°W |
| Height | 821 km |
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