| Primary satellite | Secondary satellite |
| Name | COSMOS 2251 DEB | CZ-4 R/B DEB |
| Spacetrack catalog number | 34885 | 37625 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 22 20:12 | 2024 Dec 20 06:39 |
| Time of closest approach (UTC) | 2024 Dec 28 19:25:35.973 |
| Minimum distance | 0.820 km |
| Height difference | 0.748 km |
| Relative speed | 12.975 km/s |
| Angle between velocity vectors | 120° |
| Geographic position | 74.1°S, 1.2°E |
| Height | 746 km |
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