{
  "target_markers_xyz": [
    [
      5.450730030379737,
      0.014296740709889065,
      -0.12031690695797614
    ],
    [
      5.459433420965945,
      -0.009832514495069382,
      0.08735730559984045
    ],
    [
      5.441370202762902,
      0.31322742787071267,
      -0.08688430363485544
    ],
    [
      5.448298275018914,
      0.287244050516762,
      0.12261833631564878
    ]
  ],
  "target_center_xyz": [
    5.449858397317816,
    0.15134995035415258,
    0.0004429394053537816
  ],
  "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."
}