| Primary satellite | Secondary satellite |
| Name | Courier 1B Rocket | FENGYUN 1C DEB |
| Spacetrack catalog number | 59 | 31146 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2025 Nov 13 04:56 | 2025 Nov 11 18:13 |
| Time of closest approach (UTC) | 2025 Oct 14 01:13:58.500 |
| Minimum distance | 1.271 km |
| Height difference | -0.518 km |
| Relative speed | 11.210 km/s |
| Angle between velocity vectors | 99° |
| Geographic position | 28.4°N, 0.7°W |
| Height | 955 km |
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