| Primary satellite | Secondary satellite |
| Name | SHIYUAN 3 (SY-3) | COSMOS 1275 DEB |
| Spacetrack catalog number | 33433 | 42100 |
| Radar cross section | medium | small |
| Epoch of two-line elements (UTC) | 2024 Dec 23 02:19 | 2024 Dec 20 05:54 |
| Time of closest approach (UTC) | 2024 Dec 26 10:25:12.667 |
| Minimum distance | 4.010 km |
| Height difference | -1.740 km |
| Relative speed | 7.595 km/s |
| Angle between velocity vectors | 61° |
| Geographic position | 74.4°S, 83.8°W |
| Height | 809 km |
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