| Primary satellite | Secondary satellite |
| Name | COSMOS 2251 DEB | deb Chang Zheng 4 |
| Spacetrack catalog number | 35462 | 20887 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 21 21:54 | 2024 Dec 22 18:39 |
| Time of closest approach (UTC) | 2024 Dec 26 14:39:21.512 |
| Minimum distance | 4.583 km |
| Height difference | -2.548 km |
| Relative speed | 14.931 km/s |
| Angle between velocity vectors | 172° |
| Geographic position | 13.7°S, 134.6°W |
| Height | 762 km |
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