| Primary satellite | Secondary satellite |
| Name | CAS-6 | COSMOS 2251 DEB |
| Spacetrack catalog number | 44881 | 47059 |
| Radar cross section | medium | small |
| Epoch of two-line elements (UTC) | 2024 Dec 22 20:51 | 2024 Dec 18 23:17 |
| Time of closest approach (UTC) | 2024 Dec 23 11:56:02.437 |
| Minimum distance | 1.724 km |
| Height difference | 0.372 km |
| Relative speed | 14.916 km/s |
| Angle between velocity vectors | 161° |
| Geographic position | 61.7°N, 5.3°W |
| Height | 618 km |
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