| Primary satellite | Secondary satellite |
| Name | NOAA 18 | FENGYUN 1C DEB |
| Spacetrack catalog number | 28654 | 29813 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2025 May 15 05:05 | 2025 May 14 22:01 |
| Time of closest approach (UTC) | 2025 May 03 08:08:20.341 |
| Minimum distance | 1.951 km |
| Height difference | 0.842 km |
| Relative speed | 6.593 km/s |
| Angle between velocity vectors | 53° |
| Geographic position | 80.2°N, 103.6°E |
| Height | 868 km |
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