| Primary satellite | Secondary satellite |
| Name | FENGYUN 1C DEB | COSMOS 1275 DEB |
| Spacetrack catalog number | 38789 | 42145 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 20 21:12 | 2024 Dec 22 00:42 |
| Time of closest approach (UTC) | 2024 Dec 24 01:56:24.046 |
| Minimum distance | 3.939 km |
| Height difference | 3.399 km |
| Relative speed | 3.109 km/s |
| Angle between velocity vectors | 24° |
| Geographic position | 49.0°N, 90.8°E |
| Height | 654 km |
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