| Primary satellite | Secondary satellite |
| Name | FENGYUN 1C DEB | deb Kosmos-1275 |
| Spacetrack catalog number | 31663 | 12773 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 22 11:19 | 2024 Dec 22 21:20 |
| Time of closest approach (UTC) | 2024 Dec 24 04:04:40.504 |
| Minimum distance | 2.582 km |
| Height difference | -2.531 km |
| Relative speed | 15.085 km/s |
| Angle between velocity vectors | 178° |
| Geographic position | 3.6°N, 72.9°E |
| Height | 665 km |
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