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LAS\SET VARIABLE Section_Name [Keyword]
Declare SIC variables corresponding to section of the header of the R
observation. The header sections are POSITION, SPECTRO, BASE, HISTORY,
PLOT, FSWITCH, CALIBRATION, SKYDIP, GAUSS, SHELL, NH3 (or HFS), DRIFT,
BEAM, and CONTINUUM. Defining these SIC variables allows to access the
header for mathematical computations using SIC facilities. All variables
are declared as readonly, unless Keyword WRITE is specified as third
argument. If Keyword OFF is specified, the corresponding SIC variables
are deleted (to save space since the total number of SIC variables is
limited).
The SIC variables have the name of the corresponding FORTRAN variables
stripped from the first character (always R in the FORTRAN code). They
are defined below
GENERAL General parameters, always present:
INTEGER MGEN
INTEGER MGEN2
PARAMETER (MGEN=9,MGEN2=11)
INTEGER RNUM ! Observation number
INTEGER RVER ! Version number
INTEGER RTELES(3) ! Telescope name
INTEGER RDOBS ! Date of observation
INTEGER RDRED ! Date of reduction
INTEGER RTYPEC ! Type of coordinates
INTEGER RKIND ! Type of data
INTEGER RQUAL ! Quality of data
INTEGER RSCAN ! Scan number
REAL*8 RUT ! UT of observation
REAL*8 RST ! LST of observation
REAL*4 RAZ ! Azimuth
REAL*4 REL ! Elevation
REAL*4 RTAU ! Opacity
REAL*4 RTSYS ! System temperature
REAL*4 RTIME ! Integration time
POSITION Position information:
INTEGER MPOS
PARAMETER (MPOS=11)
INTEGER RSOURC(3) ! Source name
REAL*4 REPOCH ! Epoch of coordinates
REAL*8 RLAM ! Lambda
REAL*8 RBET ! Beta
REAL*4 RLAMOF ! Offset in Lambda
REAL*4 RBETOF ! Offset in Beta
INTEGER RPROJ ! Projection system
SPECTRO Spectroscopic information (for spectra)
INTEGER MSPEC
PARAMETER (MSPEC=18)
INTEGER RLINE(3) ! Line name
REAL*8 RRESTF ! Rest frequency
INTEGER RNCHAN ! Number of channels
REAL*4 RRCHAN ! Reference channels
REAL*4 RFRES ! Frequency resolution
REAL*4 RFOFF ! Frequency offset
REAL*4 RVRES ! Velocity resolution
REAL*4 RVOFF ! Velocity at reference channel
REAL*4 RBAD ! Blanking value
REAL*8 RIMAGE ! Image frequency
INTEGER RVTYPE ! Type of velocity
REAL*8 RSKYFR ! Sky frequency
REAL*4 RVTELES ! Velocity of telescope /reference frame
BASE Baseline information (for spectra of drifts)
INTEGER MWIND
INTEGER MBASE
PARAMETER (MWIND=20,MBASE=4+2*MWIND)
INTEGER RDEG ! Degree of last baseline
REAL*4 RSIGFI ! Sigma
REAL*4 RAIRE ! Area under windows
INTEGER RNWIND ! Number of line windows
REAL*4 RW1(MWIND) ! Lower limits of windows
REAL*4 RW2(MWIND) ! Upper limits of windows
HISTORY Scan numbers of initial observations
INTEGER MSEQ
INTEGER MORIG
PARAMETER (MSEQ=100,MORIG=2*MSEQ+1)
INTEGER RNSEQ ! Number of sequences
INTEGER RSTART(MSEQ) ! Start can number of seq.
INTEGER REND(MSEQ) ! End scan number of seq.
PLOT Default plotting limits.
INTEGER MPLOT
PARAMETER (MPLOT=4)
REAL*4 RAMIN ! Min Y value plotted
REAL*4 RAMAX ! Max Y value plotted
REAL*4 RVMIN ! Min X value plotted
REAL*4 RVMAX ! Max X value plotted
FSWITCH Frequency switching information (for spectra)
INTEGER MXPHAS
INTEGER MFSW
PARAMETER (MXPHAS=8,MFSW=2+6*MXPHAS)
INTEGER RNPHAS ! Number of phases
REAL*8 RDECAL(MXPHAS) ! Frequency offsets
REAL*4 RDUREE(MXPHAS) ! Time per phase
REAL*4 RPOIDS(MXPHAS) ! Weight of each phase
INTEGER RSWMOD ! Switching mode (frequency, position...)
REAL*4 RLDECAL(MXPHAS) ! Lambda offsets
REAL*4 RBDECAL(MXPHAS) ! Beta offsets of each phase
CALIBRATION Calibration parameters
INTEGER MCALIB
PARAMETER (MCALIB=21)
REAL*4 RBEEFF ! Beam efficiency
REAL*4 RFOEFF ! Forward efficiency
REAL*4 RGAINI ! Image/Signal gain ratio
REAL*4 RH2OMM ! MM of water vapor
REAL*4 RPAMB ! Ambient pressure (hPa)
REAL*4 RTAMB ! Ambient temperature (K)
REAL*4 RTATMS ! Atmosphere temp. signal band
REAL*4 RTCHOP ! Chopper temperature
REAL*4 RTCOLD ! Cold load temperature
REAL*4 RTAUS ! Opacity signal band
REAL*4 RTAUI ! Opacity image band
REAL*4 RTATMI ! Atmosphere temp. image band
REAL*4 RTREC ! Receiver temperature
INTEGER RCMODE ! Calibration mode
REAL*4 RATFAC ! Applied calibration factor
REAL*4 RALTI ! Site elevation
REAL*4 RCOUNT(3) ! Power of Atm., Chopp., Cold
REAL*4 RLCALOF ! Longitude offset for sky measurement
REAL*4 RBCALOF ! Latitude offset for sky measurement
SKYDIP For Skydips observations. No associated data.
INTEGER MSKY
INTEGER MSKYDIP
PARAMETER (MSKY=10,MSKYDIP=10+4*MSKY)
INTEGER RSLINE(3) ! Line name
REAL*8 RSREST ! Rest frequency
REAL*8 RSIMAG ! Image frequency
INTEGER RNSKY ! Number of points on sky
INTEGER RNCHOP ! - - - - chopper
INTEGER RNCOLD ! - - - - cold load
REAL*4 RELEV(MSKY) ! Elevations
REAL*4 REMISS(MSKY) ! Power on sky
REAL*4 RCHOPP(MSKY) ! Power on chopper
REAL*4 RCOLD(MSKY) ! Power on cold load
GAUSS Gauss fit results (for spectra or drifts)
INTEGER MXGAUS
INTEGER MFIT
PARAMETER (MXGAUS=5,MFIT=3+6*MXGAUS)
INTEGER RNLINE ! Number of components
REAL*4 RSIGBA ! Sigma on base
REAL*4 RSIGRA ! Sigma on line
REAL*4 RNFIT(3*MXGAUS) ! Fit results
REAL*4 RNERR(3*MXGAUS) ! Errors
SHELL "Stellar shell" profile fit results (for spectra)
INTEGER MSHELL
PARAMETER (MSHELL=43)
INTEGER RLSHEL ! Number of components
REAL*4 RBSHEL ! Sigma on base
REAL*4 RRSHEL ! Sigma on line
REAL*4 RNSHEL(20) ! Fit results
REAL*4 RESHEL(20) ! Errors
HFS "Hyperfine Structure" profile fit results
(for spectra, ex: NH3, HCN)
INTEGER MNH3
PARAMETER (MNH3=27)
INTEGER RLNH3 ! Number of components
REAL*4 RBNH3 ! Sigma on base
REAL*4 RRNH3 ! Sigma on line
REAL*4 RNNH3(12) ! Fit results
REAL*4 RENH3(12) ! Errors
ABS "Hyperfine Structure" ABSORPTION profile fit results
(for spectra, ex: NH3, HCN)
INTEGER MABS
PARAMETER (MABS=35)
INTEGER RLABS ! Number of components
REAL*4 RBABS ! Sigma on base
REAL*4 RRABS ! Sigma on line
REAL*4 RNABS(16) ! Fit results
REAL*4 REABS(16) ! Errors
DRIFT Continuum drift description (for drifts)
INTEGER MCONT
PARAMETER (MCONT=16)
REAL*8 RFREQ ! Rest frequency
REAL*4 RWIDTH ! Bandwidth
INTEGER RNPOIN ! Number of data points
REAL*4 RRPOIN ! Reference point
REAL*4 RTREF ! Time at reference
REAL*4 RAREF ! Angular offset at ref.
REAL*4 RAPOS ! Position angle of drift
REAL*4 RTRES ! Time resolution
REAL*4 RARES ! Angular resolution
REAL*4 RCBAD ! Blanking value
INTEGER RCTYPE ! Type of offsets
REAL*8 RCIMAG ! Image frequency
REAL*4 RCOLLA ! Collimation error Az
REAL*4 RCOLLE ! Collimation error El
BEAM Beam-switching parameters (for spectra or drifts)
INTEGER MBEAM
PARAMETER (MBEAM=5)
REAL*4 RCAZIM ! Azimuth of observation
REAL*4 RCELEV ! Elevation of observation
REAL*4 RSPACE ! Beam spacing
REAL*4 RBPOS ! Position angle of beams
INTEGER RBTYPE ! System for angle
CONTINUUM Double gaussian and baseline fit results (for drifts)
INTEGER MFCONT
PARAMETER (MFCONT=19)
INTEGER RLCONT ! Number of components
REAL*4 RBCONT ! Sigma on base
REAL*4 RRCONT ! Sigma on line
REAL*4 RNCONT(8) ! Results
REAL*4 RECONT(8) ! Errors
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