define	SZ_APER		10	# length of HSP aperture names
define	SZ_FILTER	4	# length of HSP filter names
define	NAPER		4	# number of apertures (analyzers)
define	NOUT		6	# number of output files

# orientation indices of the polarizers 
define	P0 	1	# zero degree polarizer
define	P45 	2	# 45 degree polarizer
define	P90 	3	# 90 degree polarizer
define	P135 	4	# 135 degree polarizer

# logicals of the output file indices
define	INTEN	1	# intensity
define	POL	2	# polarization
define	PA	3	# position angle
define	Q	4	# Normalized Stokes parameter Q
define	U	5	# Normalized Stokes parameter U
define	MASK	6	# data quality mask

# data quality mask values
define	DQM_OKVAL	0
define	DQM_BADVAL	1