| Primary satellite | Secondary satellite |
| Name | SL-08 R/B | FENGYUN 1C DEB |
| Spacetrack catalog number | 27535 | 29858 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2026 Jan 19 05:49 | 2026 Jan 18 13:24 |
| Time of closest approach (UTC) | 2025 Dec 10 12:30:23.823 |
| Minimum distance | 102.453 km |
| Height difference | -0.602 km |
| Relative speed | 2.153 km/s |
| Angle between velocity vectors | 17° |
| Geographic position | 13.3°N, 1.4°E |
| Height | 987 km |
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