Table 2.2 The distribution of guiding modes (hours)
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   SI      IN      EC      GY      CT      FL Total
  WFP  18.667   3.875   4.963   0.111 139.599 167.214
  FOC   0.417   0.000   0.000   0.000   6.828   7.244
  FOS   0.429   0.000   0.183   0.000  24.156  24.769
  HRS   3.725   0.000   0.093   0.000  14.432  18.251
  FGS   0.000   0.000   0.001   0.000   0.156   0.157
Total  23.238   3.875   5.240   0.111 185.171 217.636
    %  10.678   1.781   2.408   0.051  85.083 100.000
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SI = Science Instrument
IN = Internal
EC = Earth Calibration
GY = Gyro
CT = Coarse Track
FL = Fine Lock
%  = Percentage