| Primary satellite | Secondary satellite |
| Name | FENGYUN 1C DEB | deb TRANSAT NNS O-11 |
| Spacetrack catalog number | 31179 | 12858 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 21 06:50 | 2024 Dec 23 00:34 |
| Time of closest approach (UTC) | 2024 Dec 30 01:48:59.984 |
| Minimum distance | 3.870 km |
| Height difference | 1.967 km |
| Relative speed | 2.230 km/s |
| Angle between velocity vectors | 18° |
| Geographic position | 57.0°N, 112.4°W |
| Height | 1093 km |
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