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SRRL AOCS Raw Data: Preset Calculations
October 19, 2001 to September 30, 2008

Calculation nameEquationCondition to computeValue during failed condition
Langley 368nmlog({368nm Photometer [counts]})(({368nm Photometer [counts]}>0)&&({Airmass (Relative Optical)}>0))(missing)
Langley 500nmlog({500nm Photometer [counts]})(({500nm Photometer [counts]}>0)&&({Airmass (Relative Optical)}>0))(missing)
Langley 862nmlog({862nm Photometer [counts]})(({862nm Photometer [counts]}>0)&&({Airmass (Relative Optical)}>0))(missing)
Langley 942nmlog({942nm Photometer [counts]})(({942nm Photometer [counts]}>0)&&({Airmass (Relative Optical)}>0))(missing)
Langley 368nm (Ideal)log({368nm Photometer [counts]})(({368nm Photometer [counts]}>0)&&({Airmass (Relative Optical)}>0)&&({AOCS Parameter}<0.15))(missing)
Langley 500nm (Ideal)log({500nm Photometer [counts]})(({500nm Photometer [counts]}>0)&&({Airmass (Relative Optical)}>0)&&({AOCS Parameter}<0.15))(missing)
Langley 862nm (Ideal)log({862nm Photometer [counts]})(({862nm Photometer [counts]}>0)&&({Airmass (Relative Optical)}>0)&&({AOCS Parameter}<0.15))(missing)
Langley 942nm (Ideal)log({942nm Photometer [counts]})(({942nm Photometer [counts]}>0)&&({Airmass (Relative Optical)}>0)&&({AOCS Parameter}<0.15))(missing)

Preset calculations are performed on the fly, as requested by user.
Calculation is only performed when condition equation is true, otherwise the failed condition value is output
Plots using a Langley calculation will be plotted versus airmass (instead of time) and will also include a linear fit with slope & intercept.
Wind Direction Deltas are special cases that go beyond the equations listed above to keep the data in the 0 to 180 degree realm.