Next: SET VELOCITY
Up: SET
Previous: SET UNIT
Contents
Index
SET VARIABLE
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 ar-
gument. 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.
They are defined below:
SECTIONS Information about present sections
LOGICAL R%HEAD%PRESEC(ISEC) [ ] List of present sections
Codes for ISEC can be found in CLASS%CODE%SEC%.
GENERAL General parameters, always present:
INTEGER*8 R%HEAD%GEN%NUM [ ] Observation number
INTEGER*4 R%HEAD%GEN%VER [ ] Version number
CHARACTER*12 R%HEAD%GEN%TELES [ ] Telescope name
CHARACTER*12 R%HEAD%GEN%CDOBS [ day] Date of observation
CHARACTER*12 R%HEAD%GEN%CDRED [ day] Date of reduction
INTEGER*4 R%HEAD%GEN%TYPEC [ code] Type of coordinates
INTEGER*4 R%HEAD%GEN%KIND [ code] Type of data
INTEGER*4 R%HEAD%GEN%QUAL [ code] Quality of data
INTEGER*8 R%HEAD%GEN%SCAN [ ] Scan number
REAL*8 R%HEAD%GEN%UT [ rad] UT of observation
REAL*8 R%HEAD%GEN%ST [ rad] LST of observation
REAL*4 R%HEAD%GEN%AZ [ rad] Azimuth
REAL*4 R%HEAD%GEN%EL [ rad] Elevation
REAL*4 R%HEAD%GEN%TAU [neper] Opacity
REAL*4 R%HEAD%GEN%TSYS [ K] System temperature
REAL*4 R%HEAD%GEN%TIME [ s] Integration time
INTEGER*4 R%HEAD%GEN%XUNIT [ code] X unit, if X coordinate section is p
Codes for TYPEC, KIND, QUAL and XUNIT can be found in SIC%CODE%COORD%,
SIC%CODE%KIND%, CLASS%CODE%QUAL% and SIC%CODE%XUNIT% respectively.
POSITION Position information:
CHARACTER*12 R%HEAD%POS%SOURC [ ] Source name
REAL*4 R%HEAD%POS%EPOCH [code] Epoch of coordinates
REAL*8 R%HEAD%POS%LAM [ rad] Lambda
REAL*8 R%HEAD%POS%BET [ rad] Beta
REAL*4 R%HEAD%POS%LAMOF [ rad] Offset in Lambda
REAL*4 R%HEAD%POS%BETOF [ rad] Offset in Beta
INTEGER*4 R%HEAD%POS%PROJ [code] Projection system
REAL*8 R%HEAD%POS%SL0P [ rad] Lambda of descriptive system
REAL*8 R%HEAD%POS%SB0P [ rad] Beta of descriptive system
REAL*8 R%HEAD%POS%SK0P [ rad] Angle of descriptive system
Codes for PROJ can be found in SIC%CODE%PROJ%.
SPECTRO Spectroscopic information (for spectra)
CHARACTER*12 R%HEAD%SPE%LINE [ ] Line name
REAL*8 R%HEAD%SPE%RESTF [ MHz] Rest frequency
REAL*8 R%HEAD%SPE%IMAGE [ MHz] Image frequency
INTEGER*4 R%HEAD%SPE%NCHAN [ ] Number of channels
REAL*8 R%HEAD%SPE%RCHAN [ ] Reference channels
REAL*8 R%HEAD%SPE%FRES [ MHz] Frequency resolution
REAL*8 R%HEAD%SPE%FOFF [km/s] Frequency offset
REAL*8 R%HEAD%SPE%VRES [km/s] Velocity resolution
REAL*8 R%HEAD%SPE%VOFF [km/s] Velocity at reference channel
REAL*4 R%HEAD%SPE%BAD [ ] Blanking value
INTEGER*4 R%HEAD%SPE%VTYPE [code] Type of velocity
REAL*8 R%HEAD%SPE%DOPPLER [ ] Doppler factor = -V/c (CLASS conven
Codes for VTYPE can be found in SIC%CODE%VELO%.
BASE Baseline information (for spectra of drifts)
PARAMETER MWIND=100
INTEGER*4 R%HEAD%BAS%DEG [ ] Degree of last baseline
REAL*4 R%HEAD%BAS%SIGFI [ K] Sigma
REAL*4 R%HEAD%BAS%AIRE [K.km/s] Area under windows
INTEGER*4 R%HEAD%BAS%NWIND [ ] Number of line windows
REAL*4 R%HEAD%BAS%W1(MWIND) [ km/s] Lower limits of windows
REAL*4 R%HEAD%BAS%W2(MWIND) [ km/s] Upper limits of windows
REAL*4 R%HEAD%BAS%SINUS(3) [ ] Sinus baseline result
REAL*4 WINDOW(FOUND,1+2*RNWIND) [ km/s] 2D plots: window for each r
HISTORY Scan numbers of initial observations
PARAMETER MSEQ=100
INTEGER*4 R%HEAD%HIS%NSEQ [ ] Number of sequences
INTEGER*4 R%HEAD%HIS%START(MSEQ) [ ] Start scan number of seq.
INTEGER*4 R%HEAD%HIS%END(MSEQ) [ ] End scan number of seq.
PLOT Default plotting limits.
REAL*4 R%HEAD%PLO%AMIN [ ] Min Y value plotted
REAL*4 R%HEAD%PLO%AMAX [ ] Max Y value plotted
REAL*4 R%HEAD%PLO%VMIN [ ] Min X value plotted
REAL*4 R%HEAD%PLO%VMAX [ ] Max X value plotted
FSWITCH Frequency switching information (for spectra)
PARAMETER MXPHAS=8
INTEGER*4 R%HEAD%FSW%NPHAS [ ] Number of phases
INTEGER*4 R%HEAD%FSW%SWMOD [code] Switching mode (frequency, p
REAL*8 R%HEAD%FSW%DECAL(MXPHAS) [ MHz] Frequency offsets
REAL*4 R%HEAD%FSW%DUREE(MXPHAS) [ s] Time per phase
REAL*4 R%HEAD%FSW%POIDS(MXPHAS) [ ] Weight of each phase
REAL*4 R%HEAD%FSW%LDECAL(MXPHAS) [ rad] Lambda offsets
REAL*4 R%HEAD%FSW%BDECAL(MXPHAS) [ rad] Beta offsets of each phase
Codes for SWMOD can be found in SIC%CODE%SWITCH%.
CALIBRATION Calibration parameters
REAL*4 R%HEAD%CAL%BEEFF [ ] Beam efficiency
REAL*4 R%HEAD%CAL%FOEFF [ ] Forward efficiency
REAL*4 R%HEAD%CAL%GAINI [ ] Image/Signal gain ratio
REAL*4 R%HEAD%CAL%H2OMM [ mm] water vapor
REAL*4 R%HEAD%CAL%PAMB [ hPa] Ambient pressure
REAL*4 R%HEAD%CAL%TAMB [ K] Ambient temperature
REAL*4 R%HEAD%CAL%TATMS [ K] Atmosphere temp. signal band
REAL*4 R%HEAD%CAL%TCHOP [ K] Chopper temperature
REAL*4 R%HEAD%CAL%TCOLD [ K] Cold load temperature
REAL*4 R%HEAD%CAL%TAUS [neper] Opacity signal band
REAL*4 R%HEAD%CAL%TAUI [neper] Opacity image band
REAL*4 R%HEAD%CAL%TATMI [ K] Atmosphere temp. image band
REAL*4 R%HEAD%CAL%TREC [ K] Receiver temperature
INTEGER*4 R%HEAD%CAL%CMODE [ code] Calibration mode
REAL*4 R%HEAD%CAL%ATFAC [ K] Applied calibration factor (Tcal)
REAL*4 R%HEAD%CAL%ALTI [ m] Site elevation
REAL*4 R%HEAD%CAL%COUNT(3) [count] Power of Atm., Chopp., Cold
REAL*4 R%HEAD%CAL%LCALOF [ rad] Longitude offset for sky measurem
REAL*4 R%HEAD%CAL%BCALOF [ rad] Latitude offset for sky measureme
REAL*8 R%HEAD%CAL%GEOLONG [ rad] Geographic longitude of observato
REAL*8 R%HEAD%CAL%GEOLAT [ rad] Geographic latitude of observator
Codes for CMODE can be found in CLASS%CODE%CALIB%.
SKYDIP For Skydips observations. No associated data.
PARAMETER MSKY=10
REAL*8 R%HEAD%SKY%SREST [MHz] Rest frequency
REAL*8 R%HEAD%SKY%SIMAG [MHz] Image frequency
INTEGER*4 R%HEAD%SKY%NSKY [ ] Number of points on sky
INTEGER*4 R%HEAD%SKY%NCHOP [ ] - - - - chopper
INTEGER*4 R%HEAD%SKY%NCOLD [ ] - - - - cold load
REAL*4 R%HEAD%SKY%ELEV(MSKY) [rad] Elevations
REAL*4 R%HEAD%SKY%EMISS(MSKY) [ ?] Power on sky
REAL*4 R%HEAD%SKY%CHOPP(MSKY) [ ?] Power on chopper
REAL*4 R%HEAD%SKY%COLD(MSKY) [ ?] Power on cold load
GAUSS Gauss fit results (for spectra or drifts)
PARAMETER MXGAUS=5
INTEGER*4 R%HEAD%GAU%NLINE [ ] Number of components
REAL*4 R%HEAD%GAU%SIGBA [ Int. unit] Sigma on base
REAL*4 R%HEAD%GAU%SIGRA [ Int. unit] Sigma on line
REAL*4 R%HEAD%GAU%NFIT(3*MXGAUS) [area,v0,fwhm] Fit results
REAL*4 R%HEAD%GAU%NERR(3*MXGAUS) [area,v0,fwhm] Errors
SHELL "Stellar shell" profile fit results (for spectra)
PARAMETER MSHELLFIT=20
INTEGER*4 R%HEAD%SHE%LSHEL [ ] Number of components
REAL*4 R%HEAD%SHE%BSHEL [ ] Sigma on base
REAL*4 R%HEAD%SHE%RSHEL [ ] Sigma on line
REAL*4 R%HEAD%SHE%NSHEL(MSHELLFIT) [ ] Fit results
REAL*4 R%HEAD%SHE%ESHEL(MSHELLFIT) [ ] Errors
NH3 "Ammoniac and Hyperfine Structure" profile fit results
(for spectra, ex: NH3, HCN)
PARAMETER MHFSFIT=12
INTEGER*4 R%HEAD%NH3%LNH3 [ ] Number of components
REAL*4 R%HEAD%NH3%BNH3 [ ] Sigma on base
REAL*4 R%HEAD%NH3%RNH3 [ ] Sigma on line
REAL*4 R%HEAD%NH3%NNH3(MHFSFIT) [ ] Fit results
REAL*4 R%HEAD%NH3%ENH3(MHFSFIT) [ ] Errors
ABS "Hyperfine Structure" ABSORPTION profile fit results
(for spectra, ex: NH3, HCN)
PARAMETER MABSFIT=16
INTEGER*4 R%HEAD%ABS%LABS [ ] Number of components
REAL*4 R%HEAD%ABS%BABS [ ] Sigma on base
REAL*4 R%HEAD%ABS%RABS [ ] Sigma on line
REAL*4 R%HEAD%ABS%NABS(MABSFIT) [ ] Fit results
REAL*4 R%HEAD%ABS%EABS(MABSFIT) [ ] Errors
DRIFT Continuum drift description (for drifts)
REAL*8 R%HEAD%DRI%FREQ [ MHz] Rest frequency
REAL*4 R%HEAD%DRI%WIDTH [ MHz] Bandwidth
INTEGER*4 R%HEAD%DRI%NPOIN [ ] Number of data points
REAL*4 R%HEAD%DRI%RPOIN [ ] Reference point
REAL*4 R%HEAD%DRI%TREF [ ?] Time at reference
REAL*4 R%HEAD%DRI%AREF [rad?] Angular offset at ref.
REAL*4 R%HEAD%DRI%APOS [rad?] Position angle of drift
REAL*4 R%HEAD%DRI%TRES [ ?] Time resolution
REAL*4 R%HEAD%DRI%ARES [rad?] Angular resolution
REAL*4 R%HEAD%DRI%CBAD [ ] Blanking value
INTEGER*4 R%HEAD%DRI%CTYPE [code] Type of offsets
REAL*8 R%HEAD%DRI%CIMAG [ MHz] Image frequency
REAL*4 R%HEAD%DRI%COLLA [ ] Collimation error Az
REAL*4 R%HEAD%DRI%COLLE [ ] Collimation error El
Codes for CTYPE can be found in SIC%CODE%COORD%.
BEAM Beam-switching parameters (for spectra or drifts)
REAL*4 R%HEAD%BEA%CAZIM [ rad] Azimuth of observation
REAL*4 R%HEAD%BEA%CELEV [ rad] Elevation of observation
REAL*4 R%HEAD%BEA%SPACE [ rad] Beam spacing
REAL*4 R%HEAD%BEA%BPOS [ rad] Position angle of beams
INTEGER*4 R%HEAD%BEA%BTYPE [code] System for angle
Codes for BTYPE can be found in SIC%CODE%COORD%.
CONTINUUM Double gaussian and baseline fit results (for drifts)
PARAMETER MPOIFIT=8
INTEGER*4 R%HEAD%POI%LCONT [ ] Number of components
REAL*4 R%HEAD%POI%BCONT [ ] Sigma on base
REAL*4 R%HEAD%POI%RCONT [ ] Sigma on line
REAL*4 R%HEAD%POI%NCONT(MPOIFIT) [ ] Results
REAL*4 R%HEAD%POI%ECONT(MPOIFIT) [ ] Errors
Gildas manager
2014-07-01