| Primary satellite | Secondary satellite |
| Name | FENGYUN 1C DEB | Cosmos 1066 Rocket |
| Spacetrack catalog number | 31732 | 11166 |
| Radar cross section | small | large |
| Epoch of two-line elements (UTC) | 2024 Dec 22 13:45 | 2024 Dec 23 03:37 |
| Time of closest approach (UTC) | 2024 Dec 29 03:26:03.004 |
| Minimum distance | 0.201 km |
| Height difference | 0.201 km |
| Relative speed | 5.691 km/s |
| Angle between velocity vectors | 45° |
| Geographic position | 66.9°S, 57.0°E |
| Height | 878 km |
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