| Primary satellite | Secondary satellite |
| Name | NOAA 18 | FENGYUN 1C DEB |
| Spacetrack catalog number | 28654 | 39544 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2023 May 29 08:55 | 2023 May 27 23:30 |
| Time of closest approach (UTC) | 2023 Apr 06 04:30:20.396 |
| Minimum distance | 66.338 km |
| Height difference | -2.527 km |
| Relative speed | 14.670 km/s |
| Angle between velocity vectors | 162° |
| Geographic position | 11.0°S, 89.1°W |
| Height | 860 km |
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