| Primary satellite | Secondary satellite |
| Name | FENGYUN 1C DEB | deb Tansei 3 |
| Spacetrack catalog number | 41826 | 13133 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2025 Nov 17 15:25 | 2025 Nov 12 10:20 |
| Time of closest approach (UTC) | 2025 Oct 16 13:02:21.317 |
| Minimum distance | 74.416 km |
| Height difference | -8.201 km |
| Relative speed | 15.124 km/s |
| Angle between velocity vectors | 156° |
| Geographic position | 49.1°N, 35.0°W |
| Height | 830 km |
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