| Primary satellite | Secondary satellite |
| Name | FENGYUN 1C DEB | deb Kosmos-1275 |
| Spacetrack catalog number | 30143 | 13460 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 23 00:17 | 2024 Dec 23 00:09 |
| Time of closest approach (UTC) | 2024 Dec 26 11:58:45.178 |
| Minimum distance | 3.996 km |
| Height difference | 3.136 km |
| Relative speed | 14.193 km/s |
| Angle between velocity vectors | 147° |
| Geographic position | 81.3°N, 167.1°W |
| Height | 919 km |
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