| Primary satellite | Secondary satellite |
| Name | FENGYUN 1C DEB | Cosmos 1420 |
| Spacetrack catalog number | 36148 | 13648 |
| Radar cross section | small | large |
| Epoch of two-line elements (UTC) | 2024 Dec 20 09:27 | 2024 Dec 22 17:42 |
| Time of closest approach (UTC) | 2024 Dec 29 01:41:23.456 |
| Minimum distance | 3.352 km |
| Height difference | 2.969 km |
| Relative speed | 14.785 km/s |
| Angle between velocity vectors | 159° |
| Geographic position | 65.2°S, 76.7°W |
| Height | 785 km |
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