| ACCOR | Corrects cross amplitudes using auto correlation measurements |
| ACFIT | Determine antenna gains from autocorrelations |
| ACLIP | edits suto-corr data for amplitudes, phases, and weights out of range |
| ACSCL | Corrects cross amplitudes using auto correlation measurements |
| ANCAL | Places antenna-based Tsys and gain corrections in CL table |
| ANCHECK | Checks By sign in Antenna files |
| ANTAB | Read amplitude calibration information into AIPS |
| ANTENNAS | Antennas to include/exclude from the task or verb |
| ANTUSE | Antennas to include/exclude from the task or verb |
| ANTWT | Antenna Weights for UV data correction in Calibration |
| APCAL | Apply TY and GC tables to generate an SN table |
| APGPS | Apply GPS-derived ionospheric corrections |
| ATMCA | Determines delay/phase gradient from calibrator observations |
| BASELINE | specifies which antenna pairs are to be selected/deselected |
| BASFIT | fits antenna locations from SN-table data |
| BDAPL | Applies a BD table to another data set |
| BLAPP | applies baseline-based fringe solutions a la BLAPP |
| BLAVG | Average cross-polarized UV data over baselines. |
| BLCAL | Compute closure offset corrections |
| BLCHN | Compute closure offset corrections on a channel-by-channel basis |
| BLING | find residual rate and delay on individual baselines |
| BLPCL | Do divide by I,Q,U models for circular polarization BLCHN |
| BLPLT | Plots BLCAL tables in 2 dimensions as function of baseline and IF |
| BLPOLCAL | Do BLCHN for I, Q, U, V models |
| BLVER | specifies the version of the baseline-calibration table used |
| BPASS | computes spectral bandpass correction table |
| BPASSPRM | Control adverb array for bandpass calibration |
| BPCOR | Correct BP table. |
| BPEDT | Interactive TV task to edit uv data based on BP tables |
| BPEPL | Plots bandpass tables overlaying multiple times like BPEDT |
| BPERR | Print and plot BPASS closure outputs |
| BPFLG | Flgas uv data based on bad BP values |
| BPLOT | Plots bandpass tables in 2 dimensions as function of time |
| BPPLT | Plots selected contents of bandpass (BP) files versus time |
| BPSMO | Smooths or interpolates bandpass tables to regular times |
| BPVER | specifies the version of the bandpass table to be applied |
| BPWAY | Determines channel-dependent relative weights |
| BPWGT | Calibrates data and scales weights by bandpass correction |
| BSPRT | print BS tables |
| BSROT | modifies SD beam-switch continuum data for error in throw |
| CALCODE | specifies the type of calibrator to be selected |
| CALDIR | lists calibrator source models available as AIPS FITS files |
| CALIB | determines antenna calibration: complex gain |
| CALIBRAT | describes the process of data calibration in AIPS |
| CALIN | specifies name of input disk file usually with calibration data |
| CALMODEL | Applies SPLIT & UVSUB to make a model data set matching a calibrator |
| CALRD | Reads calibrator source model-image FITS file |
| CALSOUR | specifies source names to be included in calibration |
| CC2IM | Make model image from a CC file |
| CENTR | modifies UV data to center the reference channel |
| CHANSEL | Array of start, stop, increment channel numbers to average |
| CHREFANT | Name of reference antenna |
| CLCAL | merges and smooths SN tables, applies them to CL tables |
| CLCOP | copy CL/SN file calibration between polarizations or IFs |
| CLCOR | applies user-selected corrections to the calibration CL table |
| CLCORPRM | Parameter adverb array for task CLCOR |
| CLINT | CL table entry interval |
| CLINV | copy CL/SN file inverting the calibration |
| CLIP | edits data based on amplitudes, phases, and weights out of range |
| CLSMO | smooths a calibration CL table |
| CLVLB | Corrects CL table gains for pointing offsets in VLBI data |
| CMETHOD | specifies the method by which the uv model is computed |
| CMODEL | specifies the method by which the uv model is computed |
| CODETYPE | specifies the desired operation or data type |
| CONFI | Optimize array configuration by minimum side lobes |
| CPASS | computes polynomial spectral bandpass correction table |
| CSCOR | applies specified corrections to CS tables |
| CVEL | shifts spectral-line UV data to a given velocity |
| DCHANSEL | Array of start, stop, increment channel #S + IF to avoid |
| DECOR | Measures the decorrelation between channels and IF of uv data |
| DEFLG | edits data based on decorrelation over channels and time |
| DELCORR | Controls task actions on calibration tables. |
| DELZN | Determines residual atmosphere depth at zenith and clock errors |
| DFCOR | applies user-selected corrections to the calibration CL table |
| DGAUS | Correct UV model for convolution by Clean beam |
| DIGICOR | specifies whether VLBA digital corrections are to be applied |
| DOACOR | specifies whether autocorrelation data are included |
| DOAPPLY | Flag to indicate whether an operation is applied to the data |
| DOBAND | specifies if/how bandpass calibration is applied |
| DOBTWEEN | Controls smoothing between sources in calibration tables |
| DOCALIB | specifies whether a gain table is to be applied or not |
| DODELAY | selects solution for phase/amplitude or delay rate/phase |
| DOFIT | Controls which antennas are fit by what methods |
| DOFLAG | Controls closure cutoff in gain solutions and flagging |
| DOOSRO | calibrating amplitude and phase, and imaging VLA data |
| DOPOL | selects application of any polarization calibration |
| DOVLAMP | Produces amp calibration file for phased-VLA VLBI data |
| DT2PD | Write PD table from a PD table text file |
| DTSIM | Generate fake UV data |
| EDITA | Interactive TV task to edit uv data based on TY/SY/SN/CL tables |
| EDITR | Interactive baseline-oriented visibility editor using the TV |
| ELEVLIM | Lower limit on elevation |
| ELFIT | Plots/fits selected contents of SN, TY, SY, PC or CL files |
| ELINT | Determines and removes gain dependence on elevation |
| EOPSFILE | Name of text file containing EOP information |
| EVACL | Evaluates statistics in closure phase and amplitude |
| EVASN | Evaluates statistics in SN/CL tables |
| EVAUV | Subtracts & divides a model into UV data, does statistics on results |
| FACES | makes images of catalog sources for initial calibration |
| FARAD | add ionospheric Faraday rotation to CL table |
| FGPLT | Plots selected contents of FG table |
| FGPRT | Pprints counts of selected portions of an FG table |
| FGTAB | writes frequency-range flags to a text file to be read by UVFLG |
| FINDR | Find normal values for a uv data set |
| FIXWT | Modify weights to reflect amplitude scatter of data |
| FLAGR | Edit data based on internal RMS, amplitudes, weights |
| FLAGVER | selects version of the flagging table to be applied |
| FLGIT | flags data based on the rms of the spectrum |
| FQTOL | Frequency tolerance with which FQ or frequency entries are accepted. |
| FRCAL | Faraday rotation self calibration task |
| FREQID | Frequency Identifier for frequency, bandwidth combination |
| FRING | fringe fit data to determine antenna calibration, delay, rate |
| FTFLG | interactive flagging of UV data in channel-time using the TV |
| GAINERR | gives estimate of gain uncertainty for each antenna |
| GAINUSE | specifies output gain table or gain table applied to data |
| GAINVER | specifies the input gain table |
| GCPLT | Plots gain curves from text files |
| GCVER | specifies the version of the gain curve table used |
| GETJY | determines calibrator flux densities |
| GPSDL | Calculate ionospheric delay and Faraday rotation corrections |
| HLPCLEAN | Cleaning tasks - run-time help |
| HLPEDIBP | Interactive BP table uv-data editor BPEDT - run-time help |
| HLPEDICL | Interactive SN/CL table uv-data editor - run-time help |
| HLPEDIPC | Interactive PC table editor PCEDT - run-time help |
| HLPEDIPD | Interactive PD table editor PDEDT - run-time help |
| HLPEDISN | Interactive SN/CL table (not UV) editor - run-time help |
| HLPEDISS | Interactive SY table (not UV) editor - run-time help |
| HLPEDISY | Interactive SY table uv-data editor EDITA - run-time help |
| HLPEDITS | Interactive TY table (not UV) editor - run-time help |
| HLPEDITY | Interactive TY table uv-data editor EDITA - run-time help |
| HLPEDIUV | Interactive uv-data editor EDITR - run-time help |
| HLPFTFLG | Interactive time-channel visibility Editor - run-time help |
| HLPIBLED | Interactive Baseline based visibility Editor - run-time help |
| HLPPCFLG | Interactive time-channel PC table Editor PCFLG - run-time help |
| HLPSCIMG | Full-featured image plus self-cal loops, editing - run-time help |
| HLPSCMAP | Imaging plus self-cal and editing SCMAP - run-time help |
| HLPSPFLG | Interactive time-channel visibility Editor SPFLG - run-time help |
| HLPTVFLG | Interactive time-baseline visibility Editor TVFLG - run-time help |
| HOLIS | Prints information about holography sampling |
| IANTB | Writes out GC and TY data in ANTAB format |
| IBLED | Interactive BaseLine based visibility EDitor |
| ICHANSEL | Array of start, stop, increment channel #S + IF to average |
| IM2CC | Task to convert an image to multi-facet Clean Components |
| IMAGR | Wide-field and/or wide-frequency Cleaning / imaging task. |
| IMFRING | large image delay fitting with IM2CC and OOFRING |
| IMSCAL | large image self-cal with IM2CC and OOCAL |
| INDXH | writes index file describing contents of UV data base |
| INDXR | writes index file describing contents of UV data base |
| INTERPOL | specifies the type of averaging done on the complex gains |
| INTPARM | specifies the parameters of the frequency interpolation function |
| KRING | fringe fit data to determine antenna calibration, delay, rate |
| LDGPS | load GPS data from an ASCII file |
| LISTR | prints contents of UV data sets and assoc. calibration tables |
| LISUN | prints contents of UV data sets with Sun angles |
| LOCIT | fits antenna locations from SN-table data |
| LPCAL | Determines instrumental polarization for UV data |
| MAPBM | Map VLA beam polarization |
| MBDLY | Fits multiband delays from IF phases, updates SN table |
| MFIMG | Image the Earth magnetic field model or TEC data used by TECOR |
| MINAMPER | specifies the minimum amplitude error prior to some action |
| MINANTEN | states minimum number of antennas for a solution |
| MINPHSER | specifies the minimum phase error prior to some action |
| MOD3D | Computes a 3D CC model from a set of facets |
| MSORT | Sort a UV dataset into a specified order |
| MULTI | Task to convert single-source to multi-source UV data |
| NORMALIZ | specifies the type of gain normaliztion if any |
| OMFIT | Fits sources and, optionally, a self-cal model to uv data |
| ONEFREQ | states that the current CC model was made with one frequency |
| OOCAL | determines antenna complex gain with frequency-dependent models |
| OOFRING | Fringe fit data to determine calibration with spectral index options |
| OOSRT | Sort a UV dataset into a specified order |
| OOSUB | Subtracts/divides a model from/into a uv data base |
| PBEAM | Fits the analytic function to the measured values of the beam |
| PCABL | Copies the Cable cal values from PC table 1 to PC table n |
| PCAL | Determines instrumental polarization for UV data |
| PCASS | Finds amplitude bandpass shape from pulse-cal table data |
| PCAVG | Averages pulse-cal (PC) tables over time |
| PCCOR | Corrects phases using PCAL tones data from PC table |
| PCDIV | Scales pulse-cal amplitudes by Tsys or Psum |
| PCEDT | Interactive TV task to edit pulse-cal (PC) tables |
| PCFIT | Finds delays and phases using a pulse-cal (PC) table |
| PCFLG | interactive flagging of Pulse-cal data in channel-TB using the TV |
| PCLOD | Reads ascii file containing pulse-cal info to PC table. |
| PCPLT | Plots pulse-cal tables in 2 dimensions as function of time |
| PCRMS | Finds statistics of a pulse-cal table; flags bad times and channels |
| PCVEL | shifts spectral-line UV data to a given velocity: planet version |
| PDEDT | Interactive TV task to edit polarization D-term (PD) tables |
| PDPLT | Plots selected contents of PD tables |
| PDVER | specifies the version of the spetral polarization table to use |
| PEEK | fits pointing model function to output from the VLA |
| PEELR | calibrates interfering sources in multi-facet imges |
| PHASPRM | Phase data array, by antenna number. |
| PIPEAIPS | calibrating amplitude and phase, and imaging VLA data |
| POLANGLE | Intrinsic polarization angles for up to 30 sources |
| POLSN | Make a SN table from cross polarized fringe fit |
| PPAPP | Applies Right minus Left phase difference to a 2nd data set |
| PRTSY | Task to print statistics from the SY table |
| QUFIX | determines Right minus Left phase difference, corrects cal files |
| QUOUT | writes text file of Q, U versus frequency to be used by RLDIF |
| REAMP | Scale visibility amplitudes by IF- or subarray-dependent factor |
| REFANT | Reference antenna |
| RESEQ | Renumber antennas |
| REWGT | modifies UV data re-scaling the weights only |
| RFI | Look for RFI in uv data |
| RLCAL | Determines instrumental right-left phase versus time (a self-cal) |
| RLDIF | determines Right minus Left phase difference, corrects cal files |
| RLDLY | fringe fit data to determine antenna R-L delay difference |
| ROTMEAS | Tells the rotation measure of a source |
| SAMPTYPE | Specifies sampling type |
| SCIMG | Full-featured imaging plus self-calibration loop with editing |
| SCMAP | Imaging plus self-calibration loop with editing |
| SDCAL | Task to apply single dish calibration |
| SDVEL | shifts spectral-line single-dish data to a given velocity |
| SEARCH | Ordered list of antennas for fring searches |
| SELBAND | SpecifieS bandwidth of the desired frequency ID |
| SELFCAL | Requests self-calibration of calibration sources |
| SELFREQ | SpecifieS frequency of desirde frequency ID |
| SETJY | Task to enter source info into source (SU) table. |
| SHAHO | Flags Holography data for shadowing |
| SHOUV | displays uv data in various ways. |
| SMODEL | Source model |
| SMOTYPE | Specifies smoothing |
| SMRATES | Requests smoothing and clipping of rates after FRING in pipeline |
| SNBLP | Plots selected contents of SN or CL files on a baseline basis |
| SNCOR | applies user-selected corrections to the calibration SN table |
| SNCORPRM | Task-specific parameters for SNCOR. |
| SNDUP | copies and duplicates SN table from single pol file to dual pol |
| SNEDT | Interactive SN/CL/TY/SY table editor using the TV |
| SNFIT | Fits parabola to SN amplitudes and plots result |
| SNFLG | Writes flagging info based on the contents of SN files |
| SNIFS | Plots selected contents of SN, TY, SY, PC or CL files by IF |
| SNP2D | Task to convert SN table single-channel phase to delay |
| SNPLT | Plots selected contents of SN, SY, TY, PC or CL files versus time |
| SNREF | Chooses best reference antenna to minimize R-L differences |
| SNRMS | Print statistics for selected contents of SN, SY, TY, PC or CL files |
| SNSMO | smooths and filters a calibration SN table |
| SNVER | specifies the output solution table |
| SOLCL | adjust gains for solar data according to nominal sensitivity |
| SOLCON | Gain solution constraint factor |
| SOLINT | Solution interval |
| SOLMIN | Minimum number of solution sub-intervals in a solution |
| SOLMODE | Solution mode |
| SOLSUB | Solution sub-interval |
| SOLTYPE | Solution type |
| SOUCODE | Calibrator code for source, not calibrator, selection |
| SOUSP | fits source spectral index from SU table or adverbs |
| SPCAL | Determines instrumental polzn. for spec. line UV data |
| SPECINDX | Spectral index used to correct calibrations |
| SPECPARM | Spectral index per polarization per source |
| SPECTRAL | Flag to indicate whether an operation is spectral or continuum |
| SPECURVE | Spectral index survature used to correct calibrations |
| SPFLG | interactive flagging of UV data in channel-TB using the TV |
| SPLAT | Applies calibration and splits or assemble selected sources. |
| SPLIT | converts multi-source to single-source UV files w calibration |
| SY2TY | Task to generate a TY extension file from an EVLA SY table |
| SYPRT | Task to print values from the SY table |
| SYSOL | undoes and re-does nominal sensitivity application for Solar data |
| SYVSN | Plots selected SY/TY data with SN solution values versus time |
| TASAV | Task to copy all extension tables to a dummy uv or map file |
| TAU0 | Opacities by antenna number |
| TDEPEND | Time-dependent imaging procedure sequence |
| TECOR | Calculate ionospheric delay and Faraday rotation corrections |
| TECRFILE | Name of file containg TEC data for use in TECOR |
| TECRTYPE | Type of IONEX file to download in VLA and VLBA TECR procedures |
| TEPLT | Plots selected contents of TE (TECOR) parameter tables |
| TIMSMO | Specifiessmoothing times |
| TLCAL | Converts JVLA telcal files to an SN file |
| TRECVR | Receiver temperatures by polarization and antenna |
| TRIANGLE | specifies closure triangles to be selected/deselected |
| TRUEP | determines true antenna polarization from special data sets |
| TVFLG | interactive flagging of UV data using the TV |
| TYAPL | undoes and re-does nominal sensitivity application |
| TYCOP | copy TY or SY table calibration between IFs |
| TYSMO | smooths and filters a calibration TY or SY table |
| TYSMOLEV | Clip level to use in running TYSMO on a VLB TY table |
| TYVER | specifies the version of the system temperature table used |
| UNCAL | sets up tables for uncalibrating Australia Telescope data |
| USUBA | Assign subarrays within a uv-data file |
| UVCRS | Finds the crossing points of UV-ellipses. |
| UVFIT | Fits source models to uv data. |
| UVFLG | Flags UV-data |
| UVGIT | Fits source models to uv data. |
| UVHOL | Prints holography data from a UV data base with calibration |
| UVMLN | edits data based on the rms of the spectrum |
| UVPRT | prints data from a UV data base with calibration |
| UVSRT | Sort a UV dataset into a specified order |
| UVSUB | Subtracts/divides a model from/into a uv data base |
| VBCAL | Scale visibility amplitudes by antenna based constants |
| VHCAL | Do divide by I,Q,U models for linear polarization data |
| VHCALIB | Do CALIB for linear polarization with I, Q, U models |
| VHDIF | find/apply V minus H linear polarization phase difference |
| VHMOD | Compute linear polarization point source model, applies to data |
| VLABP | VLA antenna beam polarization correction for snapshot images |
| VLACALIB | Runs CALIB and LISTR for VLA observation |
| VLACLCAL | Runs CLCAL and prints the results with LISTR |
| VLALIST | Runs LISTR for VLA observation |
| VLAMODE | VLA observing mode |
| VLAMP | Makes ANTAB file for phased VLA used in VLBI observations |
| VLANT | applies VLA/EVLA antenna position corrections from OPs files |
| VLAOBS | Observing program or part of observer’s name |
| VLAPROCS | Procedures to simplify the reduction of VLBA data |
| VLARESET | Reset calibration tables to a virginal state |
| VLARUN | Calibrating amplitude and phase, and imaging VLA data |
| VLBAAMP | applies a-priori amplitude corrections to VLBA data |
| VLBABPSS | computes spectral bandpass correction table |
| VLBACALA | applies a-priori amplitude corrections to VLBA data |
| VLBACCOR | applies a-priori amplitude corrections to VLBA data |
| VLBACPOL | Procedure to calibrate cross-polarization delays |
| VLBAEOPS | Corrects Earth orientation parameters |
| VLBAFQS | Copies different FQIDS to separate files |
| VLBAFRGP | Fringe fit phase referenced data and apply calibration |
| VLBAFRNG | Fringe fit data and apply calibration |
| VLBAKRGP | Fringe fit phase referenced data and apply calibration |
| VLBAKRNG | Fringe fit data and apply calibration |
| VLBAMCAL | Merges redundant calibration data |
| VLBAMPCL | Calculates and applies manual instrumental phase calibration |
| VLBAMPHC | applies VLBARUN calibration to additional phase stopping centers |
| VLBAPANG | Corrects for parallactic angle |
| VLBAPCOR | Calculates and applies instrumental phase calibration |
| VLBARFI | Calibrates VLBA autocorrelations, writes out statistics |
| VLBARUN | applies amplitude and phase calibration procs to VLBA data |
| VLBATECR | Calculate ionospheric delay and Faraday rotation corrections |
| VLBAUTIL | Procedures to simplify the reduction of VLBA data |
| VLBAWIDE | Calibrates all VLA wide-band autocorrelations with VLBARFI |
| VLBCD | Reads ascii file containing VLBA calibration info into a CD table |
| VLBSY | Reads ascii file containing VLBA total power info into an SY table |
| VLOG | Pre-process external VLBA calibration files |
| WEIGHTIT | Controls modification of weights before gain/fringe solutions |
| WETHR | Plots selected contents of WX tables, flags data based on WX |
| WRTPROCS | Procedures to simplify the reduction of VLBA data |
| WTTHRESH | defines the weight threshold for data acceptance |
| WTUV | Specifies the weight to use for UV data outside UVRANGE |
| WXLOD | Reads KEYIN-format weather information making WX table |
| XYDIF | find/apply X minus Y linear polarization phase difference |
| XYMOD | Compute linear polarization point source model, applies to data |