Table 2.2 The distribution of guiding modes (hours)
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   SI      IN      EC      GY      CT      FL Total
  WFP  25.183   0.113   3.682   3.611  80.284 112.874
  FOC   0.333   0.000   0.000   0.000   8.923   9.256
  FOS   2.698   0.000   0.000   0.000  21.452  24.150
  HRS  10.599   0.000   0.000   0.000  12.359  22.958
  FGS   0.000   0.000   0.000   0.000   0.099   0.099
Total  38.814   0.113   3.682   3.611 123.117 169.337
    %  22.921   0.067   2.174   2.133  72.705 100.000
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SI = Science Instrument
IN = Internal
EC = Earth Calibration
GY = Gyro
CT = Coarse Track
FL = Fine Lock
%  = Percentage