| Primary satellite | Secondary satellite |
| Name | FENGYUN 3D | deb Kosmos-1275 |
| Spacetrack catalog number | 43010 | 12772 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2025 Apr 29 03:49 | 2025 Apr 28 21:30 |
| Time of closest approach (UTC) | 2024 Feb 24 10:22:07.253 |
| Minimum distance | 3585.448 km |
| Height difference | 49.266 km |
| Relative speed | 14.619 km/s |
| Angle between velocity vectors | 160° |
| Geographic position | 34.6°N, 115.2°W |
| Height | 833 km |
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