| Primary satellite | Secondary satellite |
| Name | CZ-2D DEB | COSMOS 2251 DEB |
| Spacetrack catalog number | 44619 | 35073 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2025 Dec 05 06:18 | 2025 Dec 05 06:59 |
| Time of closest approach (UTC) | 2025 Nov 11 22:41:49.577 |
| Minimum distance | 1837.511 km |
| Height difference | -11.616 km |
| Relative speed | 12.664 km/s |
| Angle between velocity vectors | 113° |
| Geographic position | 61.4°N, 95.7°E |
| Height | 584 km |
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