| Primary satellite | Secondary satellite |
| Name | FENGYUN 1C DEB | deb Kosmos-1275 |
| Spacetrack catalog number | 30662 | 12658 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 23 02:18 | 2024 Dec 23 01:26 |
| Time of closest approach (UTC) | 2024 Dec 27 01:17:00.542 |
| Minimum distance | 2.701 km |
| Height difference | -2.232 km |
| Relative speed | 14.808 km/s |
| Angle between velocity vectors | 172° |
| Geographic position | 73.8°N, 105.2°W |
| Height | 851 km |
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