| Primary satellite | Secondary satellite |
| Name | FENGYUN 1C DEB | COSMOS 2251 DEB |
| Spacetrack catalog number | 30167 | 34046 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2025 Jun 15 04:51 | 2025 Jun 15 22:35 |
| Time of closest approach (UTC) | 2025 May 20 20:52:06.016 |
| Minimum distance | 10.222 km |
| Height difference | -1.791 km |
| Relative speed | 14.801 km/s |
| Angle between velocity vectors | 173° |
| Geographic position | 6.4°S, 159.4°W |
| Height | 809 km |
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