| Primary satellite | Secondary satellite |
| Name | Cosmos 1538 Rocket | FENGYUN 1C DEB |
| Spacetrack catalog number | 14760 | 31844 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2024 Dec 23 11:37 | 2024 Dec 21 06:22 |
| Time of closest approach (UTC) | 2024 Dec 26 21:16:24.436 |
| Minimum distance | 4.782 km |
| Height difference | -3.734 km |
| Relative speed | 14.923 km/s |
| Angle between velocity vectors | 171° |
| Geographic position | 49.1°S, 41.9°E |
| Height | 781 km |
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