{
  "target_markers_xyz": [
    [
      3.7797207876068124,
      -0.08137044653774134,
      -0.5645892237651787
    ],
    [
      3.846457178168971,
      -0.05967114655358411,
      -0.3984026626754722
    ],
    [
      3.762132721495665,
      0.21476934924618749,
      -0.5983020437696939
    ],
    [
      3.8266260176666176,
      0.23728015731128296,
      -0.4297624886831386
    ]
  ],
  "target_center_xyz": [
    3.803764171533902,
    0.07756884648231091,
    -0.49770269295758984
  ],
  "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."
}