| Primary satellite | Secondary satellite |
| Name | COSMOS 2251 DEB | SHIYUAN |
| Spacetrack catalog number | 34814 | 37931 |
| Radar cross section | small | large |
| Epoch of two-line elements (UTC) | 2024 Dec 23 04:55 | 2024 Dec 23 11:24 |
| Time of closest approach (UTC) | 2024 Dec 25 08:29:13.867 |
| Minimum distance | 6.958 km |
| Height difference | -1.571 km |
| Relative speed | 12.265 km/s |
| Angle between velocity vectors | 111° |
| Geographic position | 73.7°N, 114.4°E |
| Height | 817 km |
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