{
  "target_markers_xyz": [
    [
      1.6720609010008152,
      1.7163735721848863,
      -0.3327586566707206
    ],
    [
      1.697841044463146,
      1.7607090907298795,
      -0.12831793573542294
    ],
    [
      1.4345698491701813,
      1.896366599913965,
      -0.3429575286883213
    ],
    [
      1.4585737636383813,
      1.9368846301888767,
      -0.13756078546975137
    ]
  ],
  "target_center_xyz": [
    1.5658259507117473,
    1.8272226992894904,
    -0.23569140226441454
  ],
  "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."
}