| Primary satellite | Secondary satellite |
| Name | COSMOS 2251 DEB | CZ-4B DEB |
| Spacetrack catalog number | 33938 | 28438 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 23 12:12 | 2024 Dec 22 10:47 |
| Time of closest approach (UTC) | 2024 Dec 24 00:43:37.476 |
| Minimum distance | 1.499 km |
| Height difference | 0.658 km |
| Relative speed | 14.421 km/s |
| Angle between velocity vectors | 149° |
| Geographic position | 71.3°S, 80.1°W |
| Height | 762 km |
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