| Primary satellite | Secondary satellite |
| Name | NOAA 18 | FENGYUN 3B |
| Spacetrack catalog number | 28654 | 37214 |
| Radar cross section | large | large |
| Epoch of two-line elements (UTC) | 2025 May 15 05:05 | 2025 May 15 05:10 |
| Time of closest approach (UTC) | 2025 Apr 29 02:12:38.024 |
| Minimum distance | 3.380 km |
| Height difference | 2.547 km |
| Relative speed | 5.248 km/s |
| Angle between velocity vectors | 41° |
| Geographic position | 80.5°N, 163.9°W |
| Height | 869 km |
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