| Primary satellite | Secondary satellite |
| Name | deb Kosmos-1275 | COSMOS 2251 DEB |
| Spacetrack catalog number | 15766 | 40803 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2025 Jun 15 04:40 | 2025 Jun 15 21:21 |
| Time of closest approach (UTC) | 2025 May 19 00:08:22.333 |
| Minimum distance | 54.142 km |
| Height difference | -1.747 km |
| Relative speed | 14.649 km/s |
| Angle between velocity vectors | 157° |
| Geographic position | 2.3°N, 23.3°E |
| Height | 749 km |
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