AIPS NRAO AIPS HELP file for BADDISK in 31DEC21



As of Thu Jun 24 19:19:43 2021



HELP SECTION

BADDISK
Type: Adverb   (Real(10))
Use:  An adverb which contains a sequence of up to ten disk drive #'s
      which cannot be used for temporary (scratch) files during
      execution.  The location of catalog files are not affected by this
      adverb since  the user has full control of these disk drives.
Null value:   Usually 0.
      Null value means that all disk drives are working and may
      be used for scratch files.  This state does occasionally
      happen.

Verbs:
   OBITIMAG......Access to OBIT task Imager without self-cal or peeling.
   OBITMAP.......Simplified access to OBIT task Imager.
   OBITPEEL......Access to OBIT task Imager with self-cal and peeling.
   OBITSCAL......Access to OBIT task Imager with self-cal, NOT peeling.
Procedures:
   CRSFRING......Procedure to calibrate cross pol. delay and phase
                 offsets.
   CXIMAGR.......Grid UV data into a complex image, Fourier transform,
                 Clean.
   CXPOLN........Procedure to make complex polarization images and beam.
   DDT...........Previous verion of Y2K to test performance and
                 correctness of code.
   DOOSRO........Calibrating amplitude and phase, and imaging VLA data.
   IMFRING.......Large image delay fitting with IM2CC and OOFRING.
   IMSCAL........Large image self-cal with IM2CC and OOCAL.
   LINIMAGE......Build image cube from multi-IF data set.
   MAPPR.........Simplified access to IMAGR.
   MERGECAL......Procedure to merge calibration records after
                 concatenation.
   OOCAL.........Determines antenna complex gain with frequency-dependent
                 models.
   OOFRING.......Fringe fit data to determine calibration with spectral
                 index options.
   PEELR.........Calibrates interfering sources in multi-facet imges.
   PIPEAIPS......Calibrating amplitude and phase, and imaging VLA data.
   STUFFR........Averages together data sets in hour angle.
   VLACLCAL......Runs CLCAL and prints the results with LISTR.
   VLARUN........Calibrating amplitude and phase, and imaging VLA data.
   VLBAAMP.......Applies a-priori amplitude corrections to VLBA data.
   VLBACALA......Applies a-priori amplitude corrections to VLBA data.
   VLBACPOL......Procedure to calibrate cross-polarization delays.
   VLBAFRGP......Fringe fit phase referenced data and apply calibration.
   VLBAFRNG......Fringe fit data and apply calibration.
   VLBAIT........Procedure to read and process VLBA data.
   VLBAKRGP......Fringe fit phase referenced data and apply calibration.
   VLBAKRNG......Fringe fit data and apply calibration.
   VLBAMCAL......Merges redundant calibration data.
   VLBAMPHC......Applies VLBARUN calibration to additional phase stopping
                 centers.
   VLBAPANG......Corrects for parallactic angle.
   VLBARUN.......Applies amplitude and phase calibration procs to VLBA
                 data.
   Y2K...........Verifies correctness and performance using standard
                 problems.
   Y2KSAVE.......Verifies correctness and performance using standard
                 problems.
Tasks:
   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.
   AGAUS.........Fits 1-dimensional Gaussians to absorption-line spectra.
   ALVAR.........Plots the Allan Variance statistic of a UV data set.
   ALVPR.........Prints statistics on the Allan Variance of a UV data set.
   ANBPL.........Plots and prints uv data converted to antenna based
                 values.
   ANCAL.........Places antenna-based Tsys and gain corrections in CL
                 table.
   APCLN.........Deconvolves images with CLEAN algorithm.
   APGS..........Deconvolves image with Gerchberg-Saxton algorithm.
   APVC..........Deconvolves images with van Cittert algorithm.
   ATMCA.........Determines delay/phase gradient from calibrator
                 observations.
   AVSPC.........Averages uv-data in the frequency domain.
   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.
   BLSUM.........Sums images over irregular sub-images, displays spectra.
   BPASS.........Computes spectral bandpass correction table.
   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.
   BPFLG.........Flgas uv data based on bad BP values.
   BPWAY.........Determines channel-dependent relative weights.
   BPWGT.........Calibrates data and scales weights by bandpass
                 correction.
   BSCAN.........Seeks best scan to use for phase cal, fringe search, ..
   BSGRD.........Task to image beam-switched single-dish data.
   CALIB.........Determines antenna calibration: complex gain.
   CAPLT.........Plots closure amplitude and model from CC file.
   CCMRG.........Sums all clean components at the same pixel.
   CL2HF.........Convert CL table to HF table.
   CLCAL.........Merges and smooths SN tables, applies them to CL tables.
   CLCOR.........Applies user-selected corrections to the calibration CL
                 table.
   CLIP..........Edits data based on amplitudes, phases, and weights out
                 of range.
   CLPLT.........Plots closure phase and model from CC file.
   CLSMO.........Smooths a calibration CL table.
   COHER.........Baseline Phase coherence measurement.
   CONVL.........Convolves an image with a gaussian or another image.
   CORER.........Calculates correlator statistics and flags bad ones.
   CPASS.........Computes polynomial spectral bandpass correction table.
   CSCOR.........Applies specified corrections to CS tables.
   CVEL..........Shifts spectral-line UV data to a given velocity.
   CXCLN.........Complex Hogbom CLEAN.
   DCONV.........Deconvolves a gaussian from an image.
   DECOR.........Measures the decorrelation between channels and IF of uv
                 data.
   DEFLG.........Edits data based on decorrelation over channels and time.
   DELZN.........Determines residual atmosphere depth at zenith and clock
                 errors.
   DFCOR.........Applies user-selected corrections to the calibration CL
                 table.
   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.
   DIFRL.........Divides the RR data by LL 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.
   ELINT.........Determines and removes gain dependence on elevation.
   EVAUV.........Subtracts & divides a model into UV data, does statistics
                 on results.
   FFT...........Takes Fourier Transform of an image or images.
   FGCNT.........Counts samples comparing two flag tables.
   FGDIF.........Compares affect of 2 FG tables.
   FGSPW.........Flags bad spectral windows.
   FINDR.........Find normal values for a uv data set.
   FIXAL.........Least squares fit aliasing function and remove.
   FIXWT.........Modify weights to reflect amplitude scatter of data.
   FLAGR.........Edit data based on internal RMS, amplitudes, weights.
   FLATN.........Re-grid multiple fields into one image incl sensitivity.
   FLGIT.........Flags data based on the rms of the spectrum.
   FLOPM.........Reverses the spectral order of UV data, can fix VLA
                 error.
   FRCAL.........Faraday rotation self calibration task.
   FRING.........Fringe fit data to determine antenna calibration, delay,
                 rate.
   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.
   IBLED.........Interactive BaseLine based visibility EDitor.
   IM2UV.........Converts an image to a visibility data set.
   IMAGR.........Wide-field and/or wide-frequency Cleaning / imaging task.
   IMERG.........Merges images of different spatial resolutions.
   IMLIN.........Fits and removes continuum emission from cube.
   KRING.........Fringe fit data to determine antenna calibration, delay,
                 rate.
   LISTR.........Prints contents of UV data sets and assoc. calibration
                 tables.
   LOCIT.........Fits antenna locations from SN-table data.
   LPCAL.........Determines instrumental polarization for UV data.
   LTESS.........Makes mosaic images by linear combination.
   MAPBM.........Map VLA beam polarization.
   MULIF.........Change number of IFs in output.
   NOIFS.........Makes all IFs into single spectrum.
   OBEDT.........Task to flag data of orbiting antennas.
   OFLAG.........Uses on-line flag table information to write a flag
                 table.
   OMFIT.........Fits sources and, optionally, a self-cal model to uv
                 data.
   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.
   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.
   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.
   PHASE.........Baseline Phase coherence measurement.
   PHSRF.........Perform phase-referencing within a spectral line
                 database.
   POLCO.........Task to correct polarization maps for Ricean bias.
   POSSM.........Task to plot total and cross-power spectra.
   PRTSD.........Prints contents of AIPS single-dish data sets.
   PRTSY.........Task to print statistics from the SY table.
   QUACK.........Flags beginning or end portions of UV-data scans.
   REFLG.........Attempts to compress a flag table.
   REWAY.........Computes weights based in rms in spectra.
   RFI...........Look for RFI in uv data.
   RFLAG.........Flags data set based on time and freq rms in fringe
                 visibilities.
   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.
   RMFIT.........Fits 1-dimensional polarization spectrum to Q/U cube.
   RSTOR.........Restores a Clean component file to a map with a Gaussian
                 beam.
   SABOX.........Create box file from source islands in facet images.
   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.
   SDCLN.........Deconvolves image by Clark and then "SDI" cleaning
                 methods.
   SDGRD.........Task to select and image random-position single-dish
                 data.
   SDIMG.........Task to select and image random-position single-dish
                 data.
   SDVEL.........Shifts spectral-line single-dish data to a given
                 velocity.
   SERCH.........Finds line signals in transposed data cube.
   SHOUV.........Displays uv data in various ways.
   SNCOR.........Applies user-selected corrections to the calibration SN
                 table.
   SNEDT.........Interactive SN/CL/TY/SY table editor using the TV.
   SNFLG.........Writes flagging info based on the contents of SN files.
   SNSMO.........Smooths and filters a calibration SN table.
   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.
   SPIXR.........Fits spectral indexes to each row of an image incl
                 curvature.
   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.
   STEER.........Task which deconvolves the David Steer way.
   STESS.........Task which finds sensitivity in mosaicing.
   SUFIX.........Modifies source numbers on uv data.
   SUMIM.........Task to sum overlapping, sequentially-numbered images.
   SUMSQ.........Task to sum the squared pixel values of overlapping,.
   SWAPR.........Modifies UV data by swapping real and imaginary parts.
   SYPRT.........Task to print values from the SY table.
   SYSOL.........Undoes and re-does nominal sensitivity application for
                 Solar data.
   TACOP.........Task to copy tables, other extension files.
   TAMRG.........Task to merge table rows under specified conditions.
   TAPPE.........Task to append 2 tables and merge to output table.
   TASRT.........Task to sort extension tables.
   TBDIF.........Compare entries in two tables.
   TI2HA.........Modifies times in UV data to hour angles.
   TIORD.........Checks data for time baseline ordering, displays
                 failures.
   TRANS.........Task to transpose a subimage of an up to 7-dim. image.
   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.
   TYSMO.........Smooths and filters a calibration TY or SY table.
   UBAVG.........Baseline dependent time averaging of uv data.
   UFLAG.........Plots and edits data using a uv-plane grid and the TV.
   UTESS.........Deconvolves images by maximizing emptiness.
   UV2MS.........Append single-source file to multi-source file.
   UV2TB.........Converts UV autocorrelation spectra to tables.
   UVADC.........Fourier transforms and corrects a model and adds to uv
                 data.
   UVAVG.........Average or merge a sorted (BT, TB) uv database.
   UVBAS.........Averages several channels and subtracts from uv data.
   UVCOP.........Task to copy a subset of a UV data file.
   UVFIT.........Fits source models to 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.
   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.
   UVLSD.........Least squares fit to channels and divides the uv data.
   UVLSF.........Least squares fit to channels and subtracts from uv data.
   UVMAP.........Makes images from calibrated 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.
   UVPLT.........Plots data from a UV data base in multiple ways.
   UVPRM.........Measures parameters from a UV data base.
   UVPRT.........Prints data from a UV data base with calibration.
   UVRFI.........Mitigate RFI by Fourier transform or fitting the circle.
   UVRMS.........Computes statistics of a selected subset of a uv data
                 set.
   UVSRT.........Sort a UV dataset into a specified order.
   UVSUB.........Subtracts/divides a model from/into a uv data base.
   VLABP.........VLA antenna beam polarization correction for snapshot
                 images.
   VLAMP.........Makes ANTAB file for phased VLA used in VLBI
                 observations.
   VPLOT.........Plots uv data and model from CC file.
   VTESS.........Deconvolves sets of images by the Maximum Entropy Method.
   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.
   XBASL.........Fits and subtracts nth-order baselines from cube (x
                 axis).
   XGAUS.........Fits 1-dimensional Gaussians to images: restartable.
   XMOM..........Fits one-dimensional moments to each row of an image.
   XYDIF.........Find/apply X minus Y linear polarization phase
                 difference.
   XYMOD.........Compute linear polarization point source model, applies
                 to data.
   ZAMAN.........Fits 1-dimensional Zeeman model to absorption-line data.
   ZEMAN.........Fits 1-dimensional Zeeman model to data.

EXPLAIN SECTION


AIPS