{
  "target_markers_xyz": [
    [
      1.4842741172654148,
      -0.4287572290159203,
      -0.21694003155235286
    ],
    [
      1.438228364373706,
      -0.43113695423142473,
      -0.3188461989876412
    ],
    [
      1.5340707879608377,
      -0.13358858075384197,
      -0.2495963130944603
    ],
    [
      1.4867820656571715,
      -0.13778953737998706,
      -0.3522730183831555
    ]
  ],
  "target_center_xyz": [
    1.486462552769878,
    -0.2824328143524935,
    -0.2837095711877067
  ],
  "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."
}