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There are a total of 13 sensor nodes for each thermistor chain, nodes are listed in numeric order from 1 (nearest surface) to 20. NaN indicates that the node is not present.
       NaN        NaN        NaN
 -0.000299   0.015878   0.021993
       NaN        NaN        NaN
 -0.000538   0.078451   0.014166
  0.000033  -0.004993   0.012347
 -0.000251  -0.037877   0.012607
 -0.000728  -0.026290   0.015456
       NaN        NaN        NaN
  0.001268  -0.018762   0.035095
 -0.000721  -0.057102   0.016247
 -0.002691   0.051859   0.015267
 -0.000772  -0.051812   0.013030
       NaN        NaN        NaN
 -0.001634   0.080847   0.033536
 -0.001702   0.044176   0.010983
       NaN        NaN        NaN
  0.001516   0.015809   0.014409
       NaN        NaN        NaN
       NaN        NaN        NaN
       NaN        NaN        NaN