| Primary satellite | Secondary satellite |
| Name | Transit 4A | FENGYUN 1C DEB |
| Spacetrack catalog number | 116 | 31648 |
| Radar cross section | medium | small |
| Epoch of two-line elements (UTC) | 2025 May 14 01:44 | 2025 May 12 23:18 |
| Time of closest approach (UTC) | 2025 Apr 21 14:54:14.980 |
| Minimum distance | 216.137 km |
| Height difference | -1.777 km |
| Relative speed | 4.677 km/s |
| Angle between velocity vectors | 37° |
| Geographic position | 10.5°N, 55.8°W |
| Height | 882 km |
|