| Primary satellite | Secondary satellite |
| Name | NOAA 18 | FENGYUN 1C DEB |
| Spacetrack catalog number | 28654 | 36238 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2025 May 15 05:05 | 2025 May 14 17:35 |
| Time of closest approach (UTC) | 2025 Apr 30 13:03:51.825 |
| Minimum distance | 4.161 km |
| Height difference | 3.460 km |
| Relative speed | 11.169 km/s |
| Angle between velocity vectors | 98° |
| Geographic position | 76.7°S, 173.2°W |
| Height | 867 km |
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