| Primary satellite | Secondary satellite |
| Name | FENGYUN 1C DEB | FAST 2 (USA 228) |
| Spacetrack catalog number | 30599 | 37380 |
| Radar cross section | small | medium |
| Epoch of two-line elements (UTC) | 2024 Dec 22 12:23 | 2024 Dec 22 20:19 |
| Time of closest approach (UTC) | 2024 Dec 28 11:54:25.409 |
| Minimum distance | 2.310 km |
| Height difference | 1.987 km |
| Relative speed | 13.100 km/s |
| Angle between velocity vectors | 119° |
| Geographic position | 72.1°S, 105.3°W |
| Height | 650 km |
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