| Primary satellite | Secondary satellite |
| Name | FENGYUN 1C DEB | YAOGAN-31 B |
| Spacetrack catalog number | 30903 | 43276 |
| Radar cross section | small | large |
| Epoch of two-line elements (UTC) | 2024 Dec 17 10:31 | 2024 Dec 23 11:46 |
| Time of closest approach (UTC) | 2024 Dec 26 20:17:17.339 |
| Minimum distance | 2.683 km |
| Height difference | -2.579 km |
| Relative speed | 14.390 km/s |
| Angle between velocity vectors | 154° |
| Geographic position | 44.8°N, 22.9°E |
| Height | 978 km |
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