| Primary satellite | Secondary satellite |
| Name | FENGYUN 1C DEB | deb Kosmos-1275 |
| Spacetrack catalog number | 38147 | 12658 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 20 18:36 | 2024 Dec 23 01:26 |
| Time of closest approach (UTC) | 2024 Dec 23 15:25:55.668 |
| Minimum distance | 0.385 km |
| Height difference | -0.081 km |
| Relative speed | 14.667 km/s |
| Angle between velocity vectors | 159° |
| Geographic position | 81.1°S, 124.9°E |
| Height | 813 km |
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