{
  "target_markers_xyz": [
    [
      2.520688475748809,
      -2.516568180009799,
      -0.08791082712029041
    ],
    [
      2.5325025605074503,
      -2.5000121671632143,
      0.12033295518678155
    ],
    [
      2.739428794713341,
      -2.3208605890991914,
      -0.12326360764075162
    ],
    [
      2.7554660029526503,
      -2.301925578737471,
      0.08676161677225713
    ]
  ],
  "target_center_xyz": [
    2.636584461824565,
    -2.409969764622943,
    -0.001112339854662192
  ],
  "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."
}