Table 2.2 The distribution of guiding modes (hours)
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   SI      IN      EC      GY      CT      FL Total
  WFP  20.881   4.324   4.334   2.794 130.383 162.715
  FOC  10.806   0.000   0.000   0.000  12.257  23.063
  FOS   4.574   0.000   0.000   3.560  33.722  41.857
  HRS   9.941   0.000   0.278   0.000  24.814  35.033
  FGS   0.000   0.000   0.000   0.000   0.023   0.023
Total  46.201   4.324   4.611   6.354 201.200 262.690
    %  17.588   1.646   1.755   2.419  76.592 100.000
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SI = Science Instrument
IN = Internal
EC = Earth Calibration
GY = Gyro
CT = Coarse Track
FL = Fine Lock
%  = Percentage