{
  "target_markers_xyz": [
    [
      2.526900998695801,
      -2.2614663522907508,
      -0.09033299002938144
    ],
    [
      2.5352626463474675,
      -2.250607716087145,
      0.11884082067995716
    ],
    [
      2.704210735621382,
      -2.0223677017040003,
      -0.1128890638823381
    ],
    [
      2.714449003293976,
      -2.0118055854649093,
      0.09800300709159848
    ]
  ],
  "target_center_xyz": [
    2.6201010773428655,
    -2.1365447183975816,
    0.0034637673745887554
  ],
  "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."
}