| Primary satellite | Secondary satellite |
| Name | COSMOS 2251 DEB | CZ-4B DEB |
| Spacetrack catalog number | 34588 | 28438 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 23 00:00 | 2024 Dec 22 10:47 |
| Time of closest approach (UTC) | 2024 Dec 29 15:14:03.489 |
| Minimum distance | 4.856 km |
| Height difference | -3.388 km |
| Relative speed | 14.872 km/s |
| Angle between velocity vectors | 168° |
| Geographic position | 50.6°S, 154.8°W |
| Height | 764 km |
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