| Primary satellite | Secondary satellite |
| Name | SHIYUAN 3 (SY-3) | COSMOS 2251 DEB |
| Spacetrack catalog number | 33433 | 33932 |
| Radar cross section | medium | small |
| Epoch of two-line elements (UTC) | 2024 Dec 23 02:19 | 2024 Dec 22 18:27 |
| Time of closest approach (UTC) | 2024 Dec 28 01:01:15.117 |
| Minimum distance | 1.083 km |
| Height difference | 0.978 km |
| Relative speed | 14.101 km/s |
| Angle between velocity vectors | 142° |
| Geographic position | 72.8°S, 60.8°E |
| Height | 808 km |
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