| Primary satellite | Secondary satellite |
| Name | COSMOS 2251 DEB | deb r/b Ablestar |
| Spacetrack catalog number | 35453 | 463 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 19 15:23 | 2024 Dec 22 07:53 |
| Time of closest approach (UTC) | 2024 Dec 24 13:02:28.538 |
| Minimum distance | 4.221 km |
| Height difference | -3.150 km |
| Relative speed | 12.500 km/s |
| Angle between velocity vectors | 113° |
| Geographic position | 52.5°N, 180.0°E |
| Height | 743 km |
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