| Primary satellite | Secondary satellite |
| Name | COSMOS 1275 DEB | FENGYUN 1C DEB |
| Spacetrack catalog number | 27733 | 32117 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 22 03:24 | 2024 Dec 21 02:18 |
| Time of closest approach (UTC) | 2024 Dec 26 11:58:35.040 |
| Minimum distance | 3.261 km |
| Height difference | -1.544 km |
| Relative speed | 14.731 km/s |
| Angle between velocity vectors | 166° |
| Geographic position | 79.4°S, 172.9°W |
| Height | 858 km |
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