S

Task Index

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• saaclean -- Remove SAA persistence signal from a NICMOS image
• sampcum -- Accumulate a MultiAccum image from a set of sample differences.
• sampdiff -- Compute first differences of samples in a MultiAccum image.
• sampinfo -- Print sample information for a MultiAccum image.
• samplepar -- Set image sampling control parameters (pset).
• samplepars -- Pset with data sampling parameters.
• saodump -- Make image and colormap files from SAOimage display
• saolpr -- Print an image from an SAOImage display.
• sapertures -- Set aperture information in spectra
• sarith -- Spectrum arithmetic
• satlink -- Help page for use of the Satellite Link to the US
• satsinx -- Read SATS format data from tape.
• sbands -- Bandpass spectrophotometry of spectra
• scatterv -- Calculate scattered light contribution.
• scc_to_utc -- convert from ROSAT spacecraft clock time to UTC
• schmittbin -- Compute regression coefficients by Schmitt's method.
• sclean -- Sigma-CLEAN deconvolution of 2-d images.
• scmapc -- Reformat SAOimage colormap for Celco.
• scombine -- Combine spectra having different wavelength ranges
• scoords -- Set spectral coordinates as a pixel array (1D spectra only)
• scopy -- Copy spectra including aperture selection and format changes
• sdqflags -- Print sum of data quality flags.
• sdsinx -- Read SDS format data from tape.
• sdsoutx -- Write FOC images to tape in SDS format .
• seam -- Smooth the boundaries between mosaicked WF/PC frames.
• search_grid -- Perform a chisquared grid search.
• sections -- Expand an image template on the standard output
• seeing -- Generator for simulated ground-based PSFs based on atmospheric model of Saglia et al.
• seepsf -- Compute an image from the point spread function
• selftest -- Self test program to check DTOI transformation
• sensfunc -- Create sensitivity function
• service -- Service a query from a background job
• set -- Set an environment variable
• setairmass -- Set midtime airmass and universal time
• setimpars -- Save/restore parameter sets for a particular image
• setinstrument -- Set instrument parameters
• setjd -- Compute and set Julian dates in images
• sfit -- Fit spectra and output fit, ratio, or difference
• sflip -- Flip direction of dispersion
• sflux -- Combine flux data and fit a continuum, to use with fweight.
• sgidecode -- Decode an SGI format metacode file
• sgikern -- Simple graphics interface (SGI) graphics kernel
• sgraph -- Graph one or more image sections or lists.
• sgscind -- Search the guide star catalog index.
• sharp -- Measure the sharpness of star images of WFPC1/2
• shift -- Shift an image by a specified number of pixels.
• shiftfind -- Finds X,Y shifts in a cross-corelation image.
• shiftlines -- Shift the lines of a list of N-D images
• show -- Show an environment variable
• show_models -- Display the current model parameters.
• showcap -- Show and decode graphcap entries
• showfiles -- Print a list of filenames used in a synphot expression.
• showspiral -- Build and display spiral-search map.
• shutcor -- Shutter correction from images of varying exposure times
• siaper -- Plot the science instrument apertures of HST.
• side1_offset -- Task to convert side 1 carrousel positions to side 2 positions.
• simbackgd -- Two-dimensional HST background simulator
• simimg -- Two-dimensional HST imaging instrument simulator
• simnoise -- Two-dimensional HST noise simulator
• simprism -- Create a 1-D or 2-D simulated objective prism spectrum.
• simspec -- Two-dimensional HST spectral instrument simulator
• singlefit -- Compare fixed-parameter model with data.
• sinterp -- Interpolate a table of x,y pairs to create a spectrum
• sky -- Sky processing by "crrej-like" algorithm.\
• skyctran -- Transform coordinates from one celestial wcs to another
• skymap -- Compute geometric transforms using the image celestial wcs
• skypars -- Edit the object sky fitting parameters
• skypix -- precess and convert between astronimical coordinate systems
• skysub -- Sky subtract extracted multispec spectra
• skytweak -- Sky subtract 1D spectra after tweaking sky spectra
• skyxymatch -- Generate matched pixel lists using the image celestial wcs
• sleep -- Hibernate for a specified time
• slist -- List spectrum headers
• slist1d -- List spectral header elements
• slitpic -- Generate IRAF image of aperture slit mask
• smap -- Compute the photocathode mapping function (i.e., the sample direction).
• smaperloc -- Calibrate location of a small aperture (location phase III).
• snrmap -- determine the signal-to-noise of a given image
• sort -- Sort a text file
• spcombine -- Intercative combine task
• spearman -- Compute the generalized Spearman's rho correlation.
• specalign -- Combine spectra such as FP-SPLIT Observations.
• specfit -- Fitting spectra with non-linear chi-square minimization
• specfocus -- Determine spectral focus and alignment variations
• specnlucy -- extract point source spectra from longslit spectrum image using adaption of Lucy two-channel method without entropy term
• specplot -- Stack and plot multiple spectra
• specplucy -- extract point source spectra from longslit spectrum image using Lucy-Hook two-channel restoration method
• specpsf -- longslit point source spectrum from point spread function images
• specshift -- Shift spectral dispersion coordinate systems
• specslucy -- extract point source spectra from longslit spectrum image with spatially invariant background spectrum using version of Lucy two-channel restoration technique
• spectool -- Spectrum display and analysis tool
• specwcs -- Discussion and description of the spectral image formats and the dispersion world coordinate system
• sphot -- Star photometry
• spiopars -- Pset for specifying columnor file names of input spectrum fields
• spiralmap -- Build spiral-search map.
• splice -- Splice spectra together.
• split -- Split a large file into smaller segments
• splittag -- Split a COS rawtag or corrtag file into multiple files.
• splot -- Plot and analyze spectra
• spterrors -- Error calculation parameters
• sptgraph -- Graph format parameters
• spticfit -- Curve fitting parameters
• sptime -- Spectroscopic exposure time calculator
• sptlabels -- Labeling parameters
• sptlines -- Line parameters
• sptmodel -- Line profile fitting parameters
• sptsigclip -- Sigma clipping parameters
• sptstack -- Stacking parameters
• sptstat -- Statistics parameters
• spy -- Show processor status
• src_cnts -- calculate number of counts due to sources in QPOE file
• srcinten -- compute the count rate of a given source region
• sregister -- Register 1-D or 2-D images using the image celestial wcs
• ssecorr -- Correct errors in FGS star selector encoder data.
• stack -- Stack images to form a new image with one more dimension.
• standard -- Identify standard stars to be used in sensitivity calc
• starfind -- Automatically detect stellar objects in a list of images
• starfocus -- Determine direct focus variations from stellar images
• starlist -- Make an artificial star list
• statregions -- image statistics regions (pset).
• statspec -- Compute statistical error from object and sky spectra
• stdgraph -- Plot metacode on the standard graphics device
• stdplot -- Plot metacode on the standard plotter device
• step -- Take an image and divide the data between different groups.
• stfhistory -- Add history records to an STSDAS image header.
• stfov -- Plot HST science instrument apertures over an image.
• stgindx -- Copy the catalog index to an STSDAS table.
• stisnoise -- Remove fixed pattern noise from STIS images.
• stphot -- Photometry Manual for PHOTRED (in progress)
• streakflat -- Generate WF/PC flat field from streak exposures of the Earth.
• strfits -- Convert FITS files to tables or to GEIS files
• strings -- String manipulation routines
• stty -- Set/show terminal characteristics
• stwfits -- Convert tables and/or GEIS files to FITS files
• subsection -- Create an artificial subsection CCD observation
• subsets -- Substract pairs in strings of spectra
• subsky -- Subtract background flux from target+background flux.
• substar -- Subtract the fitted stars from the original image
• sums -- Generate sums of object and sky spectra by aperture
• sun2vax -- Convert GEIS images from Sun to Vax binary format
• sunmail -- Help page for the UNIX/SUN mailer
• suntoiraf -- Convert Sun rasters into IRAF images
• surface -- Make a surface plot of an image
• surfit -- Fit a surface, z=f(x,y), to a set of x, y, z points
• surveys -- Describe the image surveys configuation file
• survival -- Provide background & overview of survival analysis.
• syndico -- Make dicomed print of daily grams 18 cm across.

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This file last updated on 8 Jun 2010