| Primary satellite | Secondary satellite |
| Name | deb r/b Ablestar | COSMOS 2251 DEB |
| Spacetrack catalog number | 463 | 34990 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 22 07:53 | 2024 Dec 18 22:11 |
| Time of closest approach (UTC) | 2024 Dec 23 17:27:19.527 |
| Minimum distance | 4.774 km |
| Height difference | 1.130 km |
| Relative speed | 11.501 km/s |
| Angle between velocity vectors | 101° |
| Geographic position | 58.1°N, 140.4°W |
| Height | 762 km |
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