| Primary satellite | Secondary satellite |
| Name | Transit 4A | FENGYUN 1C DEB |
| Spacetrack catalog number | 116 | 29793 |
| Radar cross section | medium | small |
| Epoch of two-line elements (UTC) | 2025 Dec 15 08:44 | 2025 Dec 15 11:12 |
| Time of closest approach (UTC) | 2024 Nov 12 03:47:32.081 |
| Minimum distance | 206.874 km |
| Height difference | -7.223 km |
| Relative speed | 9.135 km/s |
| Angle between velocity vectors | 76° |
| Geographic position | 61.8°S, 73.1°E |
| Height | 899 km |
|