| Primary satellite | Secondary satellite |
| Name | FENGYUN 1C DEB | deb Kosmos-1275 |
| Spacetrack catalog number | 38789 | 13484 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 20 21:12 | 2024 Dec 23 04:21 |
| Time of closest approach (UTC) | 2024 Dec 26 09:21:34.485 |
| Minimum distance | 3.102 km |
| Height difference | -2.886 km |
| Relative speed | 14.735 km/s |
| Angle between velocity vectors | 178° |
| Geographic position | 25.8°N, 174.2°E |
| Height | 898 km |
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