| Primary satellite | Secondary satellite |
| Name | FENGYUN 1C DEB | Cosmos 1538 |
| Spacetrack catalog number | 31667 | 14759 |
| Radar cross section | small | large |
| Epoch of two-line elements (UTC) | 2024 Dec 19 08:44 | 2024 Dec 23 00:46 |
| Time of closest approach (UTC) | 2024 Dec 24 10:19:32.661 |
| Minimum distance | 4.081 km |
| Height difference | 0.068 km |
| Relative speed | 3.331 km/s |
| Angle between velocity vectors | 26° |
| Geographic position | 13.2°N, 57.1°W |
| Height | 781 km |
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