| Primary satellite | Secondary satellite |
| Name | Vanguard 2 Rocket | FENGYUN 1C DEB |
| Spacetrack catalog number | 12 | 31294 |
| Radar cross section | medium | small |
| Epoch of two-line elements (UTC) | 2025 Jul 07 11:47 | 2025 Jul 06 05:25 |
| Time of closest approach (UTC) | 2024 Jul 19 06:29:53.477 |
| Minimum distance | 4073.752 km |
| Height difference | -2268.061 km |
| Relative speed | 8.719 km/s |
| Angle between velocity vectors | 81° |
| Geographic position | 17.3°S, 24.6°W |
| Height | 3187 km |
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