{
  "target_markers_xyz": [
    [
      2.400816398061086,
      -1.3933789929022957,
      -0.4326510328213975
    ],
    [
      2.4634451536181228,
      -1.3997310318548324,
      -0.2326986045713737
    ],
    [
      2.523799329015846,
      -1.1223212377084768,
      -0.4646167680561364
    ],
    [
      2.585077040966013,
      -1.127546360778564,
      -0.262427710854368
    ]
  ],
  "target_center_xyz": [
    2.493004254386916,
    -1.2608829367657846,
    -0.34799637246034987
  ],
  "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."
}