{
  "target_markers_xyz": [
    [
      6.674792290832306,
      0.9077948690656853,
      -0.10827834944800618
    ],
    [
      6.681190091224585,
      0.9189656658861537,
      0.10027787358818951
    ],
    [
      6.635805704166094,
      1.2047949626707384,
      -0.12507440450839025
    ],
    [
      6.637254533860121,
      1.2132554656395742,
      0.08642176954525072
    ]
  ],
  "target_center_xyz": [
    6.657527204132497,
    1.0614090112374228,
    -0.011926110088475328
  ],
  "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."
}