Each tau relation is parameterised in the form: " tau_filt = a ( tau_cso $+$ b $+$ c sqrt(tau_cso) )" , where " a" , " b" and " c" are the three values supplied for this parameter. See also parameter "ext.taurelation.850" . Here, the trailing " .450" in the parameter name is the filter name, not the sub-instrument name as would be the case if it appeared at the start of parameter name. [(23.3,-0.018,0.05)]

EXTINCTION, MAKEMAP, CALCQU