key calibration basis.json

{
  "matrix": [
    [
      336,
      -360,
      0
    ],
    [
      336,
      0,
      -364
    ],
    [
      1,
      -6,
      0
    ],
    [
      1,
      0,
      -26
    ]
  ],
  "rhs": [
    0,
    0,
    -5,
    -25
  ],
  "rank": 3,
  "dependence": [
    7,
    -6,
    -420,
    84
  ],
  "solution": [
    "25/23",
    "70/69",
    "300/299"
  ]
}