| Primary satellite | Secondary satellite |
| Name | FENGYUN 1C DEB | deb Kosmos-1275 |
| Spacetrack catalog number | 30760 | 12710 |
| Radar cross section | small | medium |
| Epoch of two-line elements (UTC) | 2024 Dec 22 22:45 | 2024 Dec 23 04:49 |
| Time of closest approach (UTC) | 2024 Dec 24 14:26:43.169 |
| Minimum distance | 3.465 km |
| Height difference | -0.330 km |
| Relative speed | 7.959 km/s |
| Angle between velocity vectors | 65° |
| Geographic position | 75.2°N, 14.2°E |
| Height | 928 km |
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