| ACCOR | Corrects cross amplitudes using auto correlation measurements |
| ACIMG | Makes image of autocorrelation data showing time vs frequency |
| ACLIP | edits suto-corr data for amplitudes, phases, and weights out of range |
| ACSCL | Corrects cross amplitudes using auto correlation measurements |
| ADDIF | Adds an IF axis to a uv data set |
| AFILE | sorts and edits MkIII correlator A-file. |
| ALIAS | adverb to alias antenna numbers to one another |
| ALVAR | Plots the Allan Variance statistic of a UV data set |
| ALVPR | prints statistics on the Allan Variance of a UV data set |
| AMKAT | renumbers MeerKAT antennas so taht antenna number =¿ station ID |
| ANBPL | plots and prints uv data converted to antenna based values |
| ASDMFILE | Full path to EVLA ASDM/BDF directory |
| ATLOD | Reads ATCA data in RPFITS dormat into AIPS |
| AVER | Averages over time UV data sets in ’BT’ order |
| AVGWT | Computes the average visibility weight of the included data |
| AVOPTION | Controls type or range of averaging done by a task |
| AVSPC | Averages uv-data in the frequency domain |
| BAND | specifies the approximate frequency of UV data to be selected |
| BASFIT | fits antenna locations from SN-table data |
| BASRM | Task to remove a spectral baseline from total power spectra |
| BDF2AIPS | Read EVLA ASDM/BDF data into AIPS |
| BDFLIST | List contents of EVLA ASD data file |
| BIF | gives first IF (spectral window) to be included |
| BLAVG | Average cross-polarized UV data over baselines. |
| BLOAT | converts line data to greater number channels |
| BLPLT | Plots BLCAL tables in 2 dimensions as function of baseline and IF |
| BPASSPRM | Control adverb array for bandpass calibration |
| BPEDT | Interactive TV task to edit uv data based on BP tables |
| BPEPL | Plots bandpass tables overlaying multiple times like BPEDT |
| 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 |
| BPWAY | Determines channel-dependent relative weights |
| BPWGT | Calibrates data and scales weights by bandpass correction |
| BREAK | procedure to TELL FILLM to break all current uv files, start new |
| BSCAN | seeks best scan to use for phase cal, fringe search, .. |
| BSMOD | creates single-dish UV beam-switched data with model sources |
| BSROT | modifies SD beam-switch continuum data for error in throw |
| CALIB | determines antenna calibration: complex gain |
| CAPLT | plots closure amplitude and model from CC file |
| CENTR | modifies UV data to center the reference channel |
| CLIP | edits data based on amplitudes, phases, and weights out of range |
| CLOSE | plots closure phase or amplitude spectra averaged over closures |
| CLPLT | plots closure phase and model from CC file |
| CMETHOD | specifies the method by which the uv model is computed |
| CMODEL | specifies the method by which the uv model is computed |
| COHER | Baseline Phase coherence measurement |
| CONFIG | Configuration ID number within an EVLA ASDM/BDF data set |
| CORER | calculates correlator statistics and flags bad ones |
| CORFQ | corrects uvw for incorrect observing frequency |
| CVEL | shifts spectral-line UV data to a given velocity |
| CXIMAGR | Grid UV data into a complex image, Fourier transform, Clean |
| DAYFX | Fixes day number problems left by FILLM |
| DBAPP | appends one or more data sets to the output data set |
| DBCON | concatenates two UV data sets |
| DECOR | Measures the decorrelation between channels and IF of uv data |
| DEFER | Controls when file creation takes place |
| DEFLG | edits data based on decorrelation over channels and time |
| DENAN | modifies UV data flagging all NaNs |
| DESCM | copies a portion of a UV data set |
| DFQID | modifies UV data changing the indicated FQIDs |
| DFTIM | Makes image of DFT at arbitrary point showing time vs frequency |
| DFTPL | plots DFT of a UV data set at arbitrary point versus time |
| DGAUS | Correct UV model for convolution by Clean beam |
| DIFRL | divides the RR data by LL data |
| DIFUV | Outputs the difference of two matching input uv data sets |
| DOACOR | specifies whether autocorrelation data are included |
| DOARRAY | spcifies if subarrays are ignored or the information used |
| DOBTWEEN | Controls smoothing between sources in calibration tables |
| DOCONCAT | selects concatenated or indivudual output files |
| DOEBAR | Controls display of estimates of the uncertainty in the data |
| DOIFS | controls functions done across IFs |
| DOREAL | Say to do operation with real/imaginary rather than amplitude/phase |
| DOROBUST | Controls method of averaging - simple mean/rms or robust |
| DOSTOKES | selects options related to polarizations |
| DOUVCOMP | selects use of compression in writing UV data to disk |
| DQUAL | Rearranges source list, dropping qualifiers |
| DSORC | copies a data set elliminating some source numbers |
| DSTOK | Drops the cross-hand polarizations |
| DT2PD | Write PD table from a PD table text file |
| DTCHK | Task to check results of a test using simulated data. |
| DTSUM | Task to provide a summary of the contents of a dataset |
| EDITA | Interactive TV task to edit uv data based on TY/SY/SN/CL tables |
| EDITR | Interactive baseline-oriented visibility editor using the TV |
| EIF | last IF (spectral window) number to be included in operation |
| ELFIT | Plots/fits selected contents of SN, TY, SY, PC or CL files |
| 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 |
| EVLA | puts the list of eVLA antennas in the current file on stack |
| FEW | procedure to TELL FILLM to append incoming data to existing uv files |
| FGCNT | Counts samples comparing two flag tables or detailed count from ¡= 1 |
| FGDIF | Compares affect of 2 FG tables |
| FGPLT | Plots selected contents of FG table |
| FGPRT | Pprints counts of selected portions of an FG table |
| FGSPW | Flags bad spectral windows |
| FGTAB | writes frequency-range flags to a text file to be read by UVFLG |
| FILLM | reads VLA on-line/archive format uv data tapes (post Jan 88) |
| FILLR | reads old VLA on-line-system tapes into AIPS |
| FINDR | Find normal values for a uv data set |
| FITAB | writes images / uv data w extensions to tape in FITS format |
| FITDISK | writes images / uv data w extensions to disk in FITS format |
| FITTP | writes images / uv data w extensions to tape in FITS format |
| FIXAL | least squares fit aliasing function and remove |
| FIXAN | fixes the contents of the ANtenna extension file |
| FIXFR | Modifies UV data set making all frequencies increase or decrease |
| FIXRL | correctes right vs left polarizations for a list of antennas |
| FIXWT | Modify weights to reflect amplitude scatter of data |
| FLAGR | Edit data based on internal RMS, amplitudes, weights |
| FLGIT | flags data based on the rms of the spectrum |
| FLOPM | reverses the spectral order of UV data, can fix VLA error |
| FOV | Specifies the field of view |
| FQCENTER | specifies that the frequency axis should be centered |
| FREQSEL | List of frequencies desired |
| FRMAP | Task to build a map using fringe rate spectra |
| FRPLT | Task to plot fringe rate spectra |
| FTFLG | interactive flagging of UV data in channel-time using the TV |
| FUDGE | modifies UV data with user’s algorithm: paraform task |
| FXALIAS | least squares fit aliasing function and remove |
| FXPOL | Corrects VLBA polarization assignments |
| FXTIM | fixes start date so all times are positive |
| FXVLA | Task to correct VLA data for on-line errors in special cases. |
| FXVLB | Builds a CQ table to enable VLBA correlator loss corrections |
| GCPLT | Plots gain curves from text files |
| GETITIME | Verb to return the UV data integration time. |
| HA2TI | Converts data processed by TI2HA (STUFFER) back to real times |
| HAFIX | Recomputes u,v,w when time is hour angle (UVdata is output of TI2HA) |
| 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 |
| HLPSPFLG | Interactive time-channel visibility Editor SPFLG - run-time help |
| HLPTVFLG | Interactive time-baseline visibility Editor TVFLG - run-time help |
| HLPUFLAG | Edit uv-data on a grid UFLAG - run-time help |
| HLPWIPER | edit uv data from UVPLT-like plot WIPER - run-time help |
| HOLGR | Read & process holography visibility data to telescope images |
| HOLIS | Prints information about holography sampling |
| HOLOG | Read & process holography visibility data to telescope images |
| HSA | puts the list of HSA antennas in the current file on stack |
| IBLED | Interactive BaseLine based visibility EDitor |
| IM2UV | converts an image to a visibility data set |
| IMFRING | large image delay fitting with IM2CC and OOFRING |
| IMSCAL | large image self-cal with IM2CC and OOCAL |
| INTTIME | adds user-generated lines to the history extension 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 |
| M3TAR | translate Haystack MKIII VLBI format ”A” TAR’s into AIPS |
| MANY | procedure to TELL FILLM to start new uv files on each scan |
| MAPBM | Map VLA beam polarization |
| MATCH | changes antenna, source, FQ numbers to match a data set |
| MK3IN | translate Haystack MKIII VLBI format ”A” tapes into AIPS |
| MOD3D | Computes a 3D CC model from a set of facets |
| MORIF | Combines IFs or breaks spectral windows into multiple windows (IFs) |
| MSORT | Sort a UV dataset into a specified order |
| MULIF | Change number of IFs in output |
| MULTI | Task to convert single-source to multi-source UV data |
| NANS | reads an image or a UV data set and looks for NaNs |
| NCHAN | Number of spectral channels in each spectral window |
| NIF | Number of IFs (spectral windows) in a data set |
| NOIFS | makes all IFs into single spectrum |
| NPIECE | The number of pieces to make |
| NSKIP | Number of objects to skip |
| OBJECT | The name of an object |
| OBPLT | Plot columns of an OB table. |
| OFUDG | modifies UV data with user’s algorithm no cal adverbs: paraform task |
| OMFIT | Fits sources and, optionally, a self-cal model to uv data |
| OOCAL | determines antenna complex gain with frequency-dependent models |
| OOSRT | Sort a UV dataset into a specified order |
| OOSUB | Subtracts/divides a model from/into a uv data base |
| OTFMODE | Specifies whether the data are in on-the-fly mode or not |
| PCAL | Determines instrumental polarization for UV data |
| PCASS | Finds amplitude bandpass shape from pulse-cal table data |
| PCCOR | Corrects phases using PCAL tones data from PC table |
| 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 |
| PCPLT | Plots pulse-cal tables in 2 dimensions as function of time |
| 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 |
| PEELR | calibrates interfering sources in multi-facet imges |
| PHASE | Baseline Phase coherence measurement |
| PHNEG | Negates a UV datafile’s visibility phase. |
| PHSLIMIT | gives a phase value in degrees |
| PHSRF | Perform phase-referencing within a spectral line database. |
| PLOTC | Plots color schems used by 3-color plot tasks |
| PLRFI | Plots spectral statistics from output of VBRFI & VLBRF |
| POSSM | Task to plot total and cross-power spectra. |
| PPAPP | Applies Right minus Left phase difference to a 2nd data set |
| PRRFI | Prints excess spectral statistics from output of VBRFI & VLBRF |
| PRTAN | prints the contents of the ANtenna extension file |
| PRTUV | prints contents of a visibility (UV) data set |
| QCREATE | adverb controlling the way large files are created |
| QUACK | Flags beginning or end portions of UV-data scans |
| QUAL | Source qualifier |
| QUFIX | determines Right minus Left phase difference, corrects cal files |
| QUIT | procedure to TELL FILLM to stop at the end of the current scan |
| QUOUT | writes text file of Q, U versus frequency to be used by RLDIF |
| READISK | Reads images / uv data w extensions in FITS format into AIPS |
| REAMP | Scale visibility amplitudes by IF- or subarray-dependent factor |
| REFDATE | To specify the initial or reference date of a data set |
| REFLG | Attempts to compress a flag table |
| REIFS | Breaks spectral windows into multiple spectral windows (IFs) |
| RESEQ | Renumber antennas |
| REWAY | computes weights based in rms in spectra |
| REWEIGHT | Reweighting factors for UV data weights. |
| REWGT | modifies UV data re-scaling the weights only |
| RFLAG | Flags data set based on time and freq rms in fringe visibilities |
| RIRMS | computes rms of real/imag of a selected subset of a uv data set |
| RLCAL | Determines instrumental right-left phase versus time (a self-cal) |
| RLCOR | corrects a data set for R-L phase differences |
| RLDIF | determines Right minus Left phase difference, corrects cal files |
| ROBUST | Uniform weighting ”robustness” parameter |
| SBCOR | Task to correct VLBA data for phase shift between USB & LSB |
| SDLSF | least squares fit to channels and subtracts from SD uv data |
| SDMOD | modifies single-dish UV data with model sources |
| SDVEL | shifts spectral-line single-dish data to a given velocity |
| SETAN | Reads an ANtenna file info from a text file |
| SHADO | Calculate the shadowing of antennas at the array |
| SHAHO | Flags Holography data for shadowing |
| SHOUV | displays uv data in various ways. |
| SMOOTH | Specifies spectral smoothing |
| SNBLP | Plots selected contents of SN or CL files on a baseline basis |
| 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 |
| 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 |
| SORT | Specified desired sort order |
| SOUSP | fits source spectral index from SU table or adverbs |
| SPCAL | Determines instrumental polzn. for spec. line UV data |
| SPECR | Spectral regridding task for UV data |
| 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 |
| SPMOD | Modify UV database by adding a model with spectral lines |
| SPRMS | Plots spectral statistics of a selected subset of a uv data set |
| STOKES | Stokes parameter |
| STOP | procedure to TELL FILLM to break all current uv files and stop |
| STUFFR | averages together data sets in hour angle |
| SUFIX | modifies source numbers on uv data |
| SWAPR | modifies UV data by swapping real and imaginary parts |
| SWPOL | Swap polarizations in a UV data base |
| SYFIX | modifies OTF SY DATA to match the source numbers in the data set |
| SYVSN | Plots selected SY/TY data with SN solution values versus time |
| TBAVG | Time averages data combining all baselines. |
| TELFLM | procedure to TELL real-time FILLM a new APARM(1) value |
| TEPLT | Plots selected contents of TE (TECOR) parameter tables |
| TFILE | sorts and edits MkIII correlator UNIX-based A-file. |
| TI2HA | modifies times in UV data to hour angles |
| TIORD | checks data for time baseline ordering, displays failures |
| TLCAL | Converts JVLA telcal files to an SN file |
| TRUEP | determines true antenna polarization from special data sets |
| TVFLG | interactive flagging of UV data using the TV |
| U2CAT | list a user’s UV and scratch files on disk IN2DISK |
| U3CAT | list a user’s UV and scratch files on disk IN3DISK |
| U4CAT | list a user’s UV and scratch files on disk IN4DISK |
| U5CAT | list a user’s UV and scratch files on disk IN5DISK |
| UBAVG | Baseline dependent time averaging of uv data |
| UCAT | list a user’s UV and scratch files on disk INDISK |
| UFLAG | Plots and edits data using a uv-plane grid and the TV |
| UJOIN | modifies UV data converting IFs to spectral channels |
| UOCAT | list a user’s UV and scratch files on disk OUTDISK |
| USUBA | Assign subarrays within a uv-data file |
| UV1TYPE | Convolving function type 1, pillbox or square wave |
| UV2MS | Append single-source file to multi-source file. |
| UV2TB | Converts UV autocorrelation spectra to tables |
| UV2TYPE | Convolving function type 2, exponential function |
| UV3TYPE | Convolving function type 3, sinc function |
| UV4TYPE | Convolving function type 4, exponent times sinc function |
| UV5TYPE | Convolving function type 5, spheroidal function |
| UV6TYPE | Convolving function type 6, exponent times BessJ1(x) / x |
| UVADC | Fourier transforms and corrects a model and adds to uv data. |
| UVADD | Combines two matching uv data sets |
| UVAVG | Average or merge a sorted (BT, TB) uv database |
| UVBAS | averages several channels and subtracts from uv data. |
| UVBOX | radius of the smoothing box used for uniform weighting |
| UVBXFN | type of function used when counting for uniform weighting |
| UVCMP | Convert a UV database to or from compressed format |
| UVCON | Generate sample UV coverage given a user defined array layout |
| UVCOP | Task to copy a subset of a UV data file |
| UVCOPPRM | Parameter adverb array for task UVCOP |
| UVCRS | Finds the crossing points of UV-ellipses. |
| UVDEC | Decrements the number of spectral channels, keeping every nth |
| UVDGP | Copy a UV data file, deleting a portion of it |
| UVDI1 | Subtract UV data(averaged up to one time) from the other UV data |
| UVDIF | prints differences between two UV data sets |
| UVFIL | Create, fill a uv database from user supplied information |
| UVFIT | Fits source models to uv data. |
| UVFIX | Recomputes u,v,w for a uv database |
| UVFIXPRM | Parameter adverb array for task UVFIX |
| UVFLG | Flags UV-data |
| UVFND | prints selected data from UV data set to search for problems |
| UVFRE | Makes one data set have the spectral structure of another |
| UVGIT | Fits source models to uv data. |
| UVGLU | Glues UV data frequency blocks back together |
| UVHGM | Plots statistics of uv data files as histogram. |
| UVHIM | Makes image of the histogram on two user-chosen axes |
| UVHOL | Prints holography data from a UV data base with calibration |
| UVIMG | Grid UV data into an ”image” |
| UVLIN | Fits and removes continuum visibility spectrum, also can flag |
| UVLOD | Read export or FITS data from a tape or disk |
| UVLSD | least squares fit to channels and divides the uv data. |
| UVLSF | least squares fit to channels and subtracts from uv data. |
| UVMLN | edits data based on the rms of the spectrum |
| UVMOD | Modify UV database by adding a model incl spectral index |
| UVMTH | Averages one data set and applied it to another. |
| UVNOU | flags uv samples near the U,V axes to reduce interference |
| UVPLT | Plots data from a UV data base in multiple ways |
| UVPOL | modifies UV data to make complex image and beam |
| UVPRM | measures parameters from a UV data base |
| UVPRT | prints data from a UV data base with calibration |
| UVRANGE | Specify range of projected baselines |
| UVRFI | Mitigate RFI by Fourier transform or fitting the circle |
| UVRMS | computes statistics of a selected subset of a uv data set |
| UVSEN | Determine RMS sidelobe level and brightness sensitivity |
| UVSIM | Generate sample UV coverage given a user defined array layout |
| UVSIZE | specifies number of pixels on X and Y axes of a UV image |
| UVSRT | Sort a UV dataset into a specified order |
| UVSUB | Subtracts/divides a model from/into a uv data base |
| UVTAPER | Widths in U and V of gaussian weighting taper function |
| UVWAX | flags uv samples near the U,V axes to reduce interference |
| UVWTFN | Specify weighting function, Uniform or Natural |
| VBGLU | Glues together data from multiple passes thru the VLBA corr. |
| VBRFI | Plots spectral statistics of VLBA autocorrelation data for RFI |
| VECTOR | selects method of averaging UV data |
| VH2RL | Converts from linear to circular polarization and vice versa |
| VHDIF | find/apply V minus H linear polarization phase difference |
| VHMOD | Compute linear polarization point source model, applies to data |
| VLA | puts the list of VLA antennas in the current file on stack |
| VLBA | puts the list of VLBA antennas in the current file on stack |
| VLBIN | Task to read VLBI data from an NRAO/MPI MkII correlator |
| VLBRF | Plots spectral statistics of VLBA autocorrelation data for RFI |
| VPFLG | Resets flagging to all or all corss-hand whenever some are flagged |
| VPLOT | Plots uv data and model from CC file |
| VTEST | Measures velocity discrepancy across fields |
| WEIGHTIT | Controls modification of weights before gain/fringe solutions |
| WETHR | Plots selected contents of WX tables, flags data based on WX |
| WIPER | plots and edits data from a UV data base using the TV |
| WRTDISK | writes images / uv data w extensions to disk in FITS format |
| WRTPROCS | Procedures to simplify the reduction of VLBA data |
| WTMOD | modifies weights in a UV data set |
| WTUV | Specifies the weight to use for UV data outside UVRANGE |
| XYDIF | find/apply X minus Y linear polarization phase difference |
| XYMOD | Compute linear polarization point source model, applies to data |
| XYPHASE | X-Y phase differences |
| ZEROSP | Specify how to include zero spacing fluxes in FT of UV data |