| Primary satellite | Secondary satellite |
| Name | FENGYUN 1C DEB | deb Kosmos-1275 |
| Spacetrack catalog number | 31217 | 13803 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 21 19:55 | 2024 Dec 23 07:00 |
| Time of closest approach (UTC) | 2024 Dec 24 06:31:00.483 |
| Minimum distance | 4.955 km |
| Height difference | -4.852 km |
| Relative speed | 14.831 km/s |
| Angle between velocity vectors | 178° |
| Geographic position | 22.2°S, 3.6°W |
| Height | 867 km |
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