{
  "target_markers_xyz": [
    [
      2.0111460809927166,
      1.3705391710703685,
      -0.19927063591780803
    ],
    [
      2.0161650739493373,
      1.3976949993443888,
      0.00864411069332438
    ],
    [
      1.8397289407568846,
      1.6112587972784431,
      -0.23070786167822677
    ],
    [
      1.8438302905387216,
      1.6398434843638034,
      -0.021568533964832604
    ]
  ],
  "target_center_xyz": [
    1.9277292716116854,
    1.5045539877980791,
    -0.1107346710285424
  ],
  "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."
}