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SET VARIABLE
LAS\SET VARIABLE Section_Name [READ|WRITE|OFF]
Change the read-write status of the SIC variables corresponding to the
section of the header of the R observation. The section names are:
SECTIONS (to enable edition of the R%HEAD%PRESEC array)
GENERAL
POSITION
SPECTRO
RESOLUTION
BASE
HISTORY
PLOT
SWITCH
CALIBRATION
SKYDIP
GAUSS
SHELL
NH3 (or HFS)
ABSORPTION
DRIFT
BEAM
CONTINUUM
ASSOCIATED
HERSCHEL
COMMENT
USER
The corresponding variables are read-only by default, but can be changed
to read-write with the keyword WRITE. They can always be found under the
R% structure.
Some stand-alone aliases are defined by default (e.g. LINE is an alias
of R%HEAD%SPE%LINE). These aliases can be deleted with the keyword OFF.
The SIC variables have the name of the corresponding FORTRAN variables.
They are defined below:
SECTIONS Information about present sections
LOGICAL R%HEAD%PRESEC[:] [ ] List of present sections
Section codes can be found in CLASSCODES%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%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
REAL*8 R%HEAD%GEN%PARANG [ rad] Parallactic angle
INTEGER*4 R%HEAD%GEN%XUNIT [ code] X unit, if X coordinate section is p
Codes for KIND, QUAL and XUNIT can be found in SIC%CODE%KIND%, CLASS-
CODES%QUAL% and SIC%CODE%XUNIT% respectively.
POSITION Position information:
CHARACTER*12 R%HEAD%POS%SOURC [ ] Source name
INTEGER*4 R%HEAD%POS%SYSTEM [code] Coordinate system
REAL*4 R%HEAD%POS%EQUINOX [year] Equinox of coordinates
INTEGER*4 R%HEAD%POS%PROJ [code] Projection system
REAL*8 R%HEAD%POS%LAM [ rad] Lambda of projection center
REAL*8 R%HEAD%POS%BET [ rad] Beta of projection center
REAL*8 R%HEAD%POS%PROJANG [ rad] Projection angle
REAL*4 R%HEAD%POS%LAMOF [ rad] Offset in Lambda
REAL*4 R%HEAD%POS%BETOF [ rad] Offset in Beta
Codes for SYSTEM and PROJ can be found in SIC%CODE%COORD% and
SIC%CODE%PROJ% respectively.
SPECTRO Spectroscopic information (for spectra)
CHARACTER*12 R%HEAD%SPE%LINE [ ] Line name
INTEGER*4 R%HEAD%SPE%NCHAN [ ] Number of channels
REAL*8 R%HEAD%SPE%RESTF [ MHz] Rest frequency
REAL*8 R%HEAD%SPE%IMAGE [ MHz] Image frequency
REAL*8 R%HEAD%SPE%DOPPLER [ ] Doppler correction -V/c (CLASS conv
REAL*8 R%HEAD%SPE%RCHAN [ ] Reference channel
REAL*8 R%HEAD%SPE%FRES [ MHz] Frequency resolution
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
INTEGER*4 R%HEAD%SPE%VCONV [code] Velocity convention
Codes for VTYPE and VCONV can be found in SIC%CODE%VELO% and
SIC%CODE%CONV% respectively.
RESOLUTION Resolution information
REAL*4 R%HEAD%RES%MAJOR [ rad] Major axis
REAL*4 R%HEAD%RES%MINOR [ rad] Minor axis
REAL*4 R%HEAD%RES%POSANG [ rad] Position angle
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 CLASSCODES%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
HERSCHEL Herschel-HIFI section
INTEGER*8 R%HEAD%HER%OBSID [ ] Observation id
CHARACTER*8 R%HEAD%HER%INSTRUMENT [str ] Instrument name
CHARACTER*24 R%HEAD%HER%PROPOSAL [str ] Proposal name
CHARACTER*68 R%HEAD%HER%AOR [str ] Astronomical Observation Reques
INTEGER*4 R%HEAD%HER%OPERDAY [day ] Operational day number
CHARACTER*28 R%HEAD%HER%DATEOBS [str ] Start date (ISO date)
CHARACTER*28 R%HEAD%HER%DATEEND [str ] End date (ISO date)
CHARACTER*40 R%HEAD%HER%OBSMODE [str ] Observing mode
REAL*4 R%HEAD%HER%VINFO [km/s] Informative source velocity in
REAL*4 R%HEAD%HER%ZINFO [ ] Informative target redshift
REAL*8 R%HEAD%HER%POSANGLE [rad ] Spacecraft pointing position an
REAL*8 R%HEAD%HER%REFLAM [rad ] Sky reference (a.k.a. OFF), lam
REAL*8 R%HEAD%HER%REFBET [rad ] Sky reference (a.k.a. OFF), bet
REAL*8 R%HEAD%HER%HIFAVELAM [rad ] ON average H and V coordinate (
REAL*8 R%HEAD%HER%HIFAVEBET [rad ] ON average H and V coordinate (
REAL*4 R%HEAD%HER%ETAMB [ ] Main beam efficiency used when
REAL*4 R%HEAD%HER%ETAL [ ] Forward efficiency used when ap
REAL*4 R%HEAD%HER%ETAA [ ] Telescope aperture efficiency
REAL*4 R%HEAD%HER%HPBW [rad ] Azimuthally-averaged half-power
CHARACTER*8 R%HEAD%HER%TEMPSCAL [str ] Temperature scale in use
REAL*8 R%HEAD%HER%LODOPAVE [MHz ] Average LO frequency Doppler co
REAL*4 R%HEAD%HER%GIM0 [ ] Sideband gain polynomial coeff
REAL*4 R%HEAD%HER%GIM1 [ ] Sideband gain polynomial coeff
REAL*4 R%HEAD%HER%GIM2 [ ] Sideband gain polynomial coeff
REAL*4 R%HEAD%HER%GIM3 [ ] Sideband gain polynomial coeff
REAL*4 R%HEAD%HER%MIXERCURH [mA ] Calibrated mixer junction curre
REAL*4 R%HEAD%HER%MIXERCURV [mA ] Calibrated mixer junction curre
CHARACTER*28 R%HEAD%HER%DATEHCSS [str ] Processing date (ISO date)
CHARACTER*24 R%HEAD%HER%HCSSVER [str ] HCSS version
CHARACTER*16 R%HEAD%HER%CALVER [str ] Calibration version
REAL*4 R%HEAD%HER%LEVEL [ ] Pipeline level
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2024-03-28