# File lib/rvsao.h
# February 5, 2002

# RVSAO 2.2 header file

define	VERSION		"2.2.5"
define	C		2.9979e5
define	LN2		0.69314718
define	CLN10		6.90292e5
define	TWOPI		6.283185

define  MIN_PIXEL_VALUE -1000000        # Minimum legal pixel value

define	MAX_RANGES	50
define	MAXPTS		16384
define	MAXPTS2		8192
define	MAXTEMPS	256
define	MAXCACHE	0
define	MAXLOG		5
define	NPAR		4
define	SZ_HSTRING	68
define	SZ_HKWORD	9
 
define	CZMIN		-500.
define	CZMAX		50000.
define	SIGMIN		25.
define	SIGMAX		750.
define	GAMMIN		0.25
define	GAMMAX		1.50
define	CHIMIN		0.2
define	CHIMAX		10.0
define	ERRMIN		0.0001
define	ERRMAX		10.

#  Velocity correction flags
define	HC_VTYPES	"|none|file|heliocentric|barycentric|hfile|"
define  NONE		1	# no correction
define  FBCV		2	# Barycentric correction from file BCV
define	HCV		3	# Heliocentric correction
define	BCV		4	# Solar system barycentric correction
define  FHCV		5	# Heliocentric correction from file HCV

#  Velocity types
define  VCORREL		1		# Velocity from cross-correlation
define	VEMISS		2		# Velocity from emission line fit
define	VCOMB		3		# Velocity from emission and correlation
define	VSEARCH		4		# Velocity guessed from spectrum
define	VGUESS		5		# Velocity guess from parameter file
define	ZGUESS		6		# Velocity/c guess from parameter file
define	VCORTEMP	7		# Velocity from correlation of template

#  Velocity plotting flags
define	PL_VTYPES	"|correlation|emission|combination|search|guess|"

#  Initial velocity flags
define	IEM_VTYPES	"|correlation|emission|combination|search|guess|zguess|cortemp|"

# Correlation flags
define  COR_TYPES       "|no|velocity|pixel|wavelength|yes|"
define  COR_NO          1       # Do not cross-correlate
define  COR_VEL         2       # Cross-correlate velocity shift
define  COR_PIX         3       # Cross-correlate pixel shift
define  COR_WAV         4       # Cross-correlate wavelength shift
define  COR_YES         5       # Cross-correlate velocity shift

# Jul  3 1995	Last undocumented revision

# Feb  5 1997	Add velocity plotting and initial velocity flags

# Mar 20 1997	Version 2.0
# Apr 25 1997	Add zguess velocity flag
# May 19 1997	Add vcortemp velocity flat for initial velocities

# Feb 13 1998	Increase maximum number of correlation points to 16,384
# Mar  4 1998	Fix BCVCORR
# Apr  7 1998	Fix SUMSPEC
# May 15 1998	Allow minvel and maxvel to be INDEFD
# Jun 12 1998	2.0b17: Use pixel limits of WCS
# Jul 31 1998	2.0: Add toggling of heading in emsao mode 3 summary graph
# Dec 30 1998	2.1b1: Fix bug in XCSAO template pathname list handling
# Dec 30 1998	2.1b1: Increase maximum templates to 256

# Mar 18 1999	2.1b3: Multiply by 1000 after renormalizing
# Mar 30 1999	2.1b5: Allow use of OBSERVAT keyword for observatory location
# Apr  6 1999	2.1b6: Read templates only once
# May 11 1999	2.1b7: Fix SUMSPEC spectrum stacking
# Jun 10 1999	2.1b9: Add more options to SUMSPEC
# Jun 30 1999	2.1b11: Fix bug using template vel and HCV in XCSAO
# Jul 16 1999	2.1b12: Fix bug so QPLOT updates headers
# Jul 23 1999	2.1b13: Fix null report entries and add EMSAO tab table reports
# Jul 29 1999	2.1b14: Add XCSAO tab table reports; SUMSPEC constant normalize
# Aug 18 1999	2.1b15: SUMSPEC divide continuum no longer subtracts 1
# Sep  7 1999	2.1b16: Set CD matrix in SUMSPEC; fix dependency bugs
# Sep 15 1999	2.1b17: Fix tab table output from XCSAO
# Sep 24 1999	2.1.18: Fix EMSAO and XCSAO to update if quality flag is set
# Dec  6 1999	2.1.19: Free image WCS structure correctly

# Jan 25 2000	2.1.20: Add option to not remove object spectrum continuum
# Mar  6 2000	2.1.21: Fix bug in LINESPEC when using redshift as Z
# Apr 22 2000	2.1.22: Add 1900 to years from 0-120, not just 0-99
# Jul  5 2000	2.1.24: Automate renormalization
# Jul 21 2000	2.1.25: Add BCV adjustment without target velocity to SUMSPEC
# Aug  2 2000	2.1.26: Fix echelle spectrum number tracking
# Aug 10 2000	2.1.27: Fix bug in EMSAO which sorted lines poorly
# Sep 13 2000	Version 2.2: Add wavelength correlation and partial templates

# Feb  9 2001	2.2.1: Fix XCSAO to work with reversed spectra
# Mar 28 2001	2.2.2: Fix EMSAO to work with reversed spectra

# Feb  5 2002	2.2.5: Drop ends of spectra with values below MIN_PIXEL_VALUE