define	SZ_PED		40	# pedigree length
define	MAX_PED		4	# Number of valid pedigree values
define	MAX_EXT		20
define	SZ_EXT		20	# file extension size
define	MAX_YPOS	100	# maximum number of scans of image mode (with
				# a dispersion element)

# fields in the target list
define	SZ_VISIT	2
define	SZ_TARG		30	
define	SZ_DESC		35	

# fields in the observation list, common fields.
define	SZ_LINENUM	8
define	SZ_ROOT		9
define	MAX_TARG	15
define	SZ_DATEOBS	18
define	SZ_EXPT		8

# WFPC2 specific
define	SZ_UMODE	5
define	SZ_UAPER	8
define	SZ_UFILT	8
define	SZ_USERIAL	3
define	SZ_UGAIN	4
define	SZ_USERGAIN	8
define	SZ_UFILTNAM	17
define	MAX_UGRPS	4
define	SZ_SPEC		12
define	SZ_FDATE	12
define	MAX_APER	35