{
  "target_markers_xyz": [
    [
      2.9065572481449884,
      0.8755395701800979,
      -0.431617466555027
    ],
    [
      2.949542224955277,
      0.9175116264091714,
      -0.23031812382349326
    ],
    [
      2.7892176409899383,
      1.1481021909881244,
      -0.46408188521343985
    ],
    [
      2.830078435272887,
      1.1889429845940465,
      -0.26095409904134814
    ]
  ],
  "target_center_xyz": [
    2.8689872525625333,
    1.0324037847400365,
    -0.34681810022843784
  ],
  "description": "4 individual corner-reflector target markers ('CalibrationTarget-Marker 1..4'), mean over ~630 raw OptiTrack frames for this position, transform-corrected into the published radar-centered frame (see calibration/axis_convention.json). target_center_xyz is the corresponding transformed rigid-body centroid."
}