AIPS HELP file for OPCODE in 31DEC24
As of Fri Apr 19 4:22:54 2024
HELP SECTION
OPCODE
Type: Adverb (String*4)
Use: To specify the operation to be used by a task or verb.
Null Value: ' ' has various meanings depending on the task.
When ' ' is listed below, it means that the task gives
some special meaning to OPCODE = ' ' or at least to
any OPCODE value not in the list.
Verbs with supported OPCODE values:
PUTVALUE...Store a pixel value at specified position in image:
'BLNK', ' '
Procedures with supported OPCODE values:
VLBACPOL......Procedure to calibrate cross-polarization delays.
'AVIF'
VLBAKRGP......Fringe fit phase referenced data and apply calibration.
' ', 'ZPHS', 'ZRAT',' 'ZDEL'
VLBAKRNG......Fringe fit data and apply calibration.
' ', 'ZPHS', 'ZRAT',' 'ZDEL'
VLBAMPCL......Calculates and applies manual instrumental phase
calibration. ' ', 'CALI', 'CALP', 'MERG'
VLBAPCOR......Calculates and applies instrumental phase calibration.
' ', 'CALI', 'CALP', 'MERG'
Tasks with supported OPCODE values:
AFARS.........Is used after FARS to determine position and value of the
maximum. ' ', 'CMPL'
AFILE.........Sorts and edits MkIII correlator A-file.
'SORT', 'EDIT'
ANBPL.........Plots and prints uv data converted to antenna based
values. ' ', ALIF', 'ALST', 'ALSI'
APCAL.........Apply TY and GC tables to generate an SN table.
' ', 'PLOT', 'GRID', 'GRDR', 'OPAC', 'OPCR'. 'LESQ'
APGPS.........Apply GPS-derived ionospheric corrections.
'IFR ', 'DISP'
APVC..........Deconvolve images with van Cittert algorithm:
'VC ', 'TL ', 'ST ', 'WT ', 'PC '
'+VC ', '+TL ', '+ST ', '+WT ', '+PC '
AVTP..........Position tape to desired file:
'REWI', 'EOT ', 'AVFI'
BAKLD.........Read all files of a catalog entry from BAKTP tape:
'LOAD', 'PRNT'
BAKTP.........Write all files of a catalog entry to tape in host
format: 'BACK', 'INIT'
BLANK.........Blank out selected portions of an image:
'TVCU', 'FIXW', 'FLTW', 'MOMW', 'FLUW', 'SELC',
'IN2C', 'RADI'
BLAPP.........Applies baseline-based fringe solutions a la BLAPP.
'SOLV', 'CAL ', 'MK4 '
BLING.........Find residual rate and delay on individual baselines.
'INDE', 'VLBA', 'MK3 ', 'RATE'
BPCOR.........Correct BP table. ' ',
'FUNC', 'HANN', 'BOXC', GAUS', 'SINC', 'BMED', 'SPEC
BPPLT.........Plots selected contents of bandpass (BP) files versus
time.
CANDY.........User-definable (paraform) task to create an AIPS image.
CAPLT.........Plots closure amplitude and model from CC file.
' ', 'INDE'
CCMOD.........Generate clean components to fit a model:
'DISK', 'GAUS', 'POIN'
CLCAL.........Merge & smooth SN tables, apply to CL tables:
'MERG', 'CALI', 'CALP'
CLCOR.........Apply corrections to the calibration CL table
'POLR', 'PHAS', 'RATE', 'OPAC', 'ADEL', 'GAIN', 'POGN',
'CLOC', 'PANG', 'PONT', 'IONS', 'ANTP', 'ANTC', 'PCAL',
'PCFX', 'SBDL', 'MBDL', 'SSLO', 'ANAX', 'ATMO', 'TROP',
'DISP', 'SUND', 'EOPS'. 'IONO'
CLNUP.........Removes old MS, RL, SG, TG and ?? files from AIPS disks.
CLOSE.........Plots closure phase or amplitude spectra averaged over
closures. 'INDE' for independent tri/quadrangles only.
CMPLX.........Combines complex images by a variety of mathematical
methods. 'CONJ','SWAP', 'SUM ','SUMC','SUMI','ISUM',
'DIV ','DIVC','DIVI','MULT','MULC','MULI'
COMB..........Combine two images:
'SUM ', 'DIV ', 'SPIX', 'POLI', 'POLA', 'MULT', 'OPTD',
'CLIP', 'REAL', 'IMAG', 'MEAN', 'RM ', 'POLC', 'SUMM'
CONVL.........Convolve image with gaussian or another image:
'GAUS', 'GMOD', 'IMAG', 'IMAC', 'DCON', 'DGAU'
CSCOR.........Apply specified corrections to CS tables:
'OPAC', 'GAIN', 'PTRA', 'PTDC'
DCONV.........Deconvolve a gaussian from an image:
'IN2C', 'UNWT'
DFCOR.........Applies user-selected corrections to the calibration CL
table. 'ATMO' only
DTCHK.........Task to check results of a test using simulated data.
'TABC', 'UVUN'
ELINT.........Determines and removes gain dependence on elevation.
'POLE', 'POLZ', ;PWR ', 'PWRN'
EVACL.........Evaluates statistics in closure phase and amplitude.
'INDE' for independent triangles/quadrangles.
FARAD.........Add ionospheric Faraday rotation to CL table:
' ', 'TEC ', 'F0F2', 'MOD '
FFT...........Take Fourier transform of image(s):
'UVRE', 'UVCX', 'MARE', 'MACX', 'UVIR', 'UVIX'
FGTAB.........Writes frequency-range flags to a text file to be read by
UVFLG. ' '. 'ANTE'
FITLD.........Reads FITS files to load images or UV (IDI or UVFITS)
data to disk. 'VT', 'ALL', 'VALL'
FLGIT.........Flags data based on the rms of the spectrum.
' '. 'MWFL'
IMMOD.........Add images of model objects to an image:
'GAUS', 'DISK', 'RECT', 'SPHE', 'EXPD', 'POIN'
KRING.........Fringe fit data to determine antenna calibration, delay,
rate. ' ', 'ZPHS', 'ZRAT', 'ZDEL'
MATHS.........Operate on image with choice of math functions:
'SIN ', 'COS ', 'TAN ', 'ASIN', 'ACOS', 'ATAN', 'LOG ',
'ALOG', 'LOGN', 'EXP ', 'POLY', 'POWR', 'MOD ', 'ABS '
MFIMG.........Image the Earth magnetic field model or TEC data used
by TECOR. ' ', 'AIT', 'MER'
MODIM.........Adds images of model objects to image cubes in IQU
polarization.
'GAUS', 'DISK', 'RECT', 'SPHE', 'EXPD', 'POIN'
MOVE..........Task to copy or move data from one user or disk to
another. ' ', 'MOVE', 'DUPL, 'COPD'
MWFLT.........Apply linear & non-linear filters to images:
'MW ', 'ALFA', 'MODE', 'NRML', 'MAX', 'MIN', 'ROW'
NINER.........Apply various 3x3 area operaters to an image:
'NINE', 'NORT', 'NE ', 'EAST', 'SE ', 'SOUT',
'SW ', 'WEST', 'NW ', 'MSK1', 'MSK2', 'MSK3',
'SOBL', 'KRSH', 'WALL'
OBEDT.........Task to flag data of orbiting antennas.
'DIST', 'VEL ', 'SUNS', 'ECLB', 'ECLE'
OBPLT.........Plot columns of an OB table.
'TIME', 'DIST', 'VEL ', ANG1', 'BECL', 'EECL', 'ORIE'
OOSUB.........Subtracts/divides a model from/into a uv data base.
' ', 'DIV ', 'MODL'
PASTE.........Pastes a selected subimage of one image into another.
'REPL', 'ADD'
PATGN.........Create a user-specified test pattern:
'ZONE', 'GAUS', 'LRTZ', 'RADI', 'POLY', 'BEAM', 'INVB'
PBCOR.........Task to apply or correct an image for a primary beam.
'GAUS','POLY',' '
PHSRF.........Perform phase-referencing within a spectral line
database. ' ', 'PHSR', 'A&P', 'PHBL', 'APBL'
PLOTC.........Plots color schems used by 3-color plot tasks.
'ALAN', 'ALTI', 'ALIF', 'ALST', 'ALSI'
POLCO.........Correct polarization maps for Ricean bias:
'ZERO', ' '
POLSN.........Make a SN table from cross polarized fringe fit.
' ', 'AVIF'
PRTSY.........Task to print statistics from the SY table.
'SCAN', 'IFS', 'ANTS', 'SORC', 'EFFS', ' '
QUACK.........Flag beginning or end portions of UV-data scans:
'END ', 'BEG '
RMSD..........Calculate rms for each pixel using data in a box around
the pixel. 'RMS', 'MEAN', 'BLAN', 'MAD', 'MEDI'
RSPEC.........Plots and prints spectrum of rms of a cube.
' '. 'WEIT'
SCLIM.........Operates on an image with a choice of mathematical
functions. 'LOG', 'ALOG', 'LOGN', 'EXP', 'POWR',
'LN', 'NE', 'SQ', 'NQ', 'LG', 'NG'
SLCOL.........Collate slice data and models:
'MODL', 'SLVL'
SNBLP.........Plots selected contents of SN or CL files on a baseline
basis. ' ', 'IFDF', 'IFRA,, 'ALIF', 'ALST', 'ALSI'
SNCOR.........Applies user-selected corrections to the calibration SN
table. 'AVRT', 'CLPA', 'CLPP', 'CLPD', 'CLPR', 'CLPW',
'XFER', 'ZPHS', 'ZRAT', 'ZDEL', 'MULA', 'REFP, ''CPRT',
'CPSN', 'PCOP', 'PNEG', 'NORM'
SNIFS.........Plots selected contents of SN, TY, SY, PC or CL files by
IF. ' ', 'ALAN', 'ALTI'
SNPLT.........Plots selected contents of SN, SY, TY, PC or CL files
versus time. ' ', 'IFDF', 'IFRA,, 'ALIF', 'ALST', 'ALSI'
SPFIX.........Makes cube from input to and output from SPIXR spectral
index. ' '. 'DIFF'
STACK.........Task to co-add a set of 2-dimensional images with
weighting. ' ', 'MEDI', 'CUBE', 'MEDC'
SUBIM.........Task to select a subimage from up to a 7-dim. image.
' ', 'AVE', 'SUM', 'MIN', MAX'
SYVSN.........Plots selected SY/TY data with SN solution values versus
time. 'PHAS', 'DELA', 'AMP'
TAFFY.........User definable task to operate on an image.
TARS..........Simulation of Faraday rotation synthesis (mainly task
FARS). ' ', 'CMPL', 'ZERO'
TEPLT.........Plots selected contents of TE (TECOR) parameter tables.
'TIME', 'HA', 'AZ', 'ZA','AZIO', 'ZAIO', 'DLON',
'DLAT', 'BX', 'BY', 'BZ','TECP', 'MAG', TEC','IFR',
Sets X axis.
TFILE.........Sorts and edits MkIII correlator UNIX-based A-file.
'SORT', 'EDIT'
TVCPS.........Task to copy a TV screen-image to a PostScript file.
' ', 'COL', 'GREY', 'GRAY', 'B&W', 'COLB'
UJOIN.........Modifies UV data converting IFs to spectral channels.
' ', 'DIFF'
USUBA.........Assign subarrays within a uv-data file.
' ', 'SCAN', 'AUTO'
UVADD.........Combines two matching uv data sets.
'ADD', 'SUBT', 'MULT', 'DIV'
UVAVG.........Average or merge 'BT' or 'TB' sorted UV data:
'MERG', ' '
UVDIF.........Print differences between two UV data sets:
'CLIP', 'UVBX', ' '
UVFIT.........Fit gaussian or spheres to UV data:
'GAUS', 'SPHE'
UVFLG.........Flag selected UV data on disk:
'FLAG', 'UFLG', 'REAS', 'WILD'
UVFND.........Print UV data selected to search for problems:
'CLIP', 'FRNG', 'UVBX', 'VCLP', 'WTUV'
UVGIT.........Fits source models to uv data.
'GAUS', 'SPHE'
UVHGM.........Plot statistics (histograms) of uv data files:
UVMTH.........Correct one uv dataset with the average of another:
'ADD ', 'SUB ', 'MULT', 'DIV '
UVPOL.........Modifies UV data to make complex image and beam.
'WEIG', 'DATA'
UVRFI.........Mitigate RFI by Fourier transform or fitting the circle.
'CEXP', 'CIRC'
UVSUB.........Subtract clean components from a uv data base:
' ', 'DIV ', 'DIV4', 'MODL'
VPFLG.........Resets flagging to all or all corss-hand whenever some
are flagged. ' ', 'CROS'
VPLOT.........Plots uv data and model from CC file. ' ', 'IFRA'
XSMTH.........Smooth image data on the x axis only:
'SMOT', 'INTE'
XSUM..........Sum or average image data on the x axis only:
'SUM ', 'AVER'
XYMOD.........Compute linear polarization point source model, applies
to data. ' ', 'MODL', 'SUBT'
EXPLAIN SECTION