| Primary satellite | Secondary satellite |
| Name | FENGYUN 1C DEB | deb Kosmos-1275 |
| Spacetrack catalog number | 46995 | 12712 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2023 Dec 03 20:21 | 2023 Dec 06 14:38 |
| Time of closest approach (UTC) | 2023 Sep 29 08:32:37.887 |
| Minimum distance | 1584.045 km |
| Height difference | 14.313 km |
| Relative speed | 8.971 km/s |
| Angle between velocity vectors | 74° |
| Geographic position | 81.1°N, 156.2°W |
| Height | 899 km |
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