{
  "target_markers_xyz": [
    [
      6.306834302838293,
      -0.9847369316419706,
      -0.1129401176878968
    ],
    [
      6.305318665658446,
      -0.9621496332161857,
      0.0952093392543063
    ],
    [
      6.3263556550481495,
      -0.6874836955226802,
      -0.1473129213001696
    ],
    [
      6.3200139526906405,
      -0.66671333636045,
      0.06377113084428476
    ]
  ],
  "target_center_xyz": [
    6.314715455555854,
    -0.8252224646949678,
    -0.02540906904768181
  ],
  "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."
}