| Primary satellite | Secondary satellite |
| Name | NOAA 18 | FENGYUN 1C DEB |
| Spacetrack catalog number | 28654 | 33740 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2025 May 15 05:05 | 2025 May 14 07:21 |
| Time of closest approach (UTC) | 2025 May 01 00:04:59.141 |
| Minimum distance | 5.665 km |
| Height difference | -4.850 km |
| Relative speed | 7.364 km/s |
| Angle between velocity vectors | 59° |
| Geographic position | 79.9°N, 138.8°W |
| Height | 868 km |
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