| Primary satellite | Secondary satellite |
| Name | FENGYUN 1C DEB | deb Kosmos-1275 |
| Spacetrack catalog number | 30134 | 12658 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 23 00:58 | 2024 Dec 23 01:26 |
| Time of closest approach (UTC) | 2024 Dec 29 20:33:21.324 |
| Minimum distance | 1.456 km |
| Height difference | -1.411 km |
| Relative speed | 14.846 km/s |
| Angle between velocity vectors | 174° |
| Geographic position | 70.9°N, 173.7°W |
| Height | 849 km |
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