Stokes parameter definitions. Note that the names of the literals are strictly identical to the ones in the enum StokesParameterMod::StokesParameter. See the enumeration StokesType in case it is necessary to use the notation as in CASA.. These have no associated values. Order: The order is set by groups following the same order as the enum in CASA. Note that 'I' corresponds to the integral value 1 in the CASA enum. Standard stokes parameters I Standard stokes parameters Q Standard stokes parameters U Standard stokes parameters V Circular correlation product RR Circular correlation product RL Circular correlation product LR Circular correlation product LL Linear correlation product XX Linear correlation product XY Linear correlation product YX Linear correlation product YY Mixed correlation product RX Mixed correlation product RY Mixed correlation product LX Mixed correlation product LY Mixed correlation product XR Mixed correlation product XL Mixed correlation product YR Mixed correlation product YL General quasi-orthogonal correlation product PP General quasi-orthogonal correlation product PQ General quasi-orthogonal correlation product QP General quasi-orthogonal correlation product QQ Single dish polarization RCircular Single dish polarization LCircular Single dish polarization Linear Polarized intensity ((Q^2+U^2+V^2)^(1/2)) Linearly Polarized intensity ((Q^2+U^2)^(1/2)) Polarization Fraction (Ptotal/I) Linear Polarization Fraction (Plinear/I) Linear Polarization Angle (0.5 arctan(U/Q)) (in radians) Number of items Number of items Stokes parameter enumerators restricting to circular correlation products Number of items in the list Number of items in the set Stokes parameter enumerators restricting to linear correlation products Number of items in the list Number of items in the set Stokes parameter enumerators restricting to mixed correlation products Number of items in the list Number of items in the set Stokes parameter enumerators restricting to general quasi-orthogonal correlation products Number of items in the list Number of items in the set Stokes parameter enumerators restricting to single dish use-cases Number of items in the list Number of items in the set Standard Stokes parameters Number of items in the list Number of items in the set