| Primary satellite | Secondary satellite |
| Name | CZ-2C R/B | COSMOS 2251 DEB |
| Spacetrack catalog number | 37766 | 34547 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2024 Dec 23 07:38 | 2024 Dec 21 14:44 |
| Time of closest approach (UTC) | 2024 Dec 26 00:48:21.120 |
| Minimum distance | 4.519 km |
| Height difference | -1.255 km |
| Relative speed | 14.956 km/s |
| Angle between velocity vectors | 168° |
| Geographic position | 47.0°S, 151.4°E |
| Height | 684 km |
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