AIPS HELP file for FLUX in 31DEC25
As of Wed Apr 23 14:48:07 2025
HELP SECTION
FLUX
Type: Adverb (Real)
Use: FLUX is a general adverb to express an intensity level associated
with an image. For radio maps the unit of FLUX is Jy/beam. It
is widely used as a lower limit for Cleaning or for components
to be included in a source modelor other operation.
Null value: NONE (0 means 0)
Consult the task help file for exact usage.
Verbs:
IMCENTER......Returns pixel position of sub-image centroid.
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:
CXIMAGR.......Grid UV data into a complex image, Fourier transform,
Clean.
DOFARS........Procedure to aid in Faraday rotation synthesis using
the FARS task.
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.
OOCAL.........Determines antenna complex gain with frequency-
dependent models.
OOFRING.......Fringe fit data to determine calibration with spectral
index options.
PIPEAIPS......Calibrating amplitude and phase, and imaging VLA data.
TDSTEP3.......Time-dependent imaging procedure "step 3"
TDSTEP5.......Time-dependent imaging procedure "step 5"
VLARUN........Calibrating amplitude and phase, and imaging VLA data.
VLBABPSS......Computes spectral bandpass correction table.
Y2KSAVE.......Verifies correctness and performance using standard
problems.
Tasks:
AGAUS.........Fits 1-dimensional Gaussians to absorption-line
spectra.
APCLN.........Deconvolves images with CLEAN algorithm.
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.
BOXES.........Adds Clean boxes to BOXFILE around sources from a list.
BPASS.........Computes spectral bandpass correction table.
BSCLN.........Hogbom Clean on beam-switched difference image.
BSMOD.........Creates single-dish UV beam-switched data with model
sources.
BSTST.........Graphical display of solutions to frequency-switched
data.
CALIB.........Determines antenna calibration: complex gain.
CAPLT.........Plots closure amplitude and model from CC file.
CCFND.........Prints the contents of a Clean Components extension
file.
CCMOD.........Generates clean components to fit specified source
model.
CCNTR.........Generate a contour plot file from an image with CC or
MF plotted.
CLPLT.........Plots closure phase and model from CC file.
CPASS.........Computes polynomial spectral bandpass correction table.
CXCLN.........Complex Hogbom CLEAN.
EVAUV.........Subtracts & divides a model into UV data, does
statistics on results.
FACES.........Makes images of catalog sources for initial
calibration.
FARS..........Faraday rotation synthesis based on the brightness vs
wavelength.
FIXAL.........Least squares fit aliasing function and remove.
FRING.........Fringe fit data to determine antenna calibration,
delay, rate.
IBLED.........Interactive BaseLine based visibility EDitor.
IM2CC.........Task to convert an image to multi-facet Clean
Components.
IM2UV.........Converts an image to a visibility data set.
IMAGR.........Wide-field and/or wide-frequency Cleaning / imaging
task.
IMMOD.........Adds images of model objects to an image.
KRING.........Fringe fit data to determine antenna calibration,
delay, rate.
LISPX.........Fits spectral indexes to a list of spectra, allows
interactive edit.
MF2ST.........Task to generate an ST ext. file from Model Fit ext.
file.
MFPRT.........Prints MF tables in a format needed by modelling
software.
MOD3D.........Computes a 3D CC model from a set of facets.
MODAB.........Makes simple absorption/emission spectral-line image in
I/V.
MODIM.........Adds images of model objects to image cubes in IQU
polarization.
MODSP.........Adds images of model objects to image cubes in I/V
polarization.
MOMFT.........Calculates images of moments of a sub-image.
MOMNT.........Calculates images of moments along x-axis (vel, freq,
ch).
MTARS.........Compute model inputs to TARS.
OOSUB.........Subtracts/divides a model from/into a uv data base.
PCAL..........Determines instrumental polarization for UV data.
RLCAL.........Determines instrumental right-left phase versus time (a
self-cal).
RMSD..........Calculate rms for each pixel using data in a box around
the pixel.
SCIMG.........Full-featured imaging plus self-calibration loop with
editing.
SCMAP.........Imaging plus self-calibration loop with editing.
SDCLN.........Deconvolves image by Clark and then "SDI" cleaning
methods.
SDLSF.........Least squares fit to channels and subtracts from SD uv
data.
SDMOD.........Modifies single-dish UV data with model sources.
SETFC.........Makes a BOXFILE for input to IMAGR.
SPIXR.........Fits spectral indexes to each row of an image incl
curvature.
SPMOD.........Modify UV database by adding a model with spectral
lines.
SPXMD.........Adds images of model objects to image cubes in spectral
index.
TARS..........Simulation of Faraday rotation synthesis (mainly task
FARS).
TVSPX.........Fits spectral indexes to each image row, allows
interactive edit.
UTESS.........Deconvolves images by maximizing emptiness.
UVADC.........Fourier transforms and corrects a model and adds to uv
data.
UVCON.........Generate sample UV coverage given a user defined array
layout.
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.
UVMLN.........Edits data based on the rms of the spectrum.
UVMOD.........Modify UV database by adding a model incl spectral
index.
UVPRM.........Measures parameters from a UV data base.
UVSUB.........Subtracts/divides a model from/into a uv data base.
VPLOT.........Plots uv data and model from CC file.
VTESS.........Deconvolves sets of images by the Maximum Entropy
Method.
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.
XPLOT.........Plots image rows one at a time on the graphics or TV
screen.
ZAMAN.........Fits 1-dimensional Zeeman model to absorption-line
data.
ZEMAN.........Fits 1-dimensional Zeeman model to data.
EXPLAIN SECTION