| Primary satellite | Secondary satellite |
| Name | COSMOS 2251 DEB | HAIYANG 2C |
| Spacetrack catalog number | 34910 | 46469 |
| Radar cross section | small | large |
| Epoch of two-line elements (UTC) | 2024 Dec 22 20:21 | 2024 Dec 23 09:37 |
| Time of closest approach (UTC) | 2024 Dec 25 13:40:44.191 |
| Minimum distance | 3.581 km |
| Height difference | 1.093 km |
| Relative speed | 13.933 km/s |
| Angle between velocity vectors | 140° |
| Geographic position | 0.8°N, 176.9°E |
| Height | 952 km |
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