| Primary satellite | Secondary satellite |
| Name | Cosmos 1140 Rocket | FENGYUN 1C DEB |
| Spacetrack catalog number | 11574 | 32106 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2025 Jul 09 16:37 | 2025 Jun 28 14:18 |
| Time of closest approach (UTC) | 2024 Jul 17 20:39:34.413 |
| Minimum distance | 1211.629 km |
| Height difference | 168.958 km |
| Relative speed | 12.288 km/s |
| Angle between velocity vectors | 112° |
| Geographic position | 74.0°N, 42.3°W |
| Height | 753 km |
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