apropos "List all the tasks related with a given subject" (stsdas)
contrib "+ User-contributed software" (stsdas)
describe "Display a description of the named task(s) or package(s)." (stsdas)
examples "Print online examples of how to use the named task(s). " (stsdas)
problems "Submit an STSDAS software problem report to STScI." (stsdas)
gasp "+ Access the HST Guide Star Catalog on CD-ROM." (stsdas.analysis)
restore "+ Deconvolve or filter 1- or 2-dimensional images." (stsdas.analysis)
convert "Convert ASCII data base format to STSDAS table format." (stsdas.analysis.fitting)
function "Generate functions as images, tables or lists." (stsdas.analysis.fitting)
gfit1d "Interactive 1-d linear curve fit to images, tables or lists." (stsdas.analysis.fitting)
i2gaussfit "Iterative 2-d Gaussian fit to noisy images (script)." (stsdas.analysis.fitting)
nfit1d "Interactive 1-d non-linear curve fit to images, tables or " (stsdas.analysis.fitting)
ngaussfit "Interactive 1-d multiple Gaussian fit to images, tables or " (stsdas.analysis.fitting)
n2gaussfit "2-d Gaussian fit to images." (stsdas.analysis.fitting)
prfit "Print contents of fit tables created by fitting task." (stsdas.analysis.fitting)
(Type ""help nlfit" for more information on the non-linear fitting algorithm.)" (stsdas.analysis.fitting)
(Type ""help ncfit" for more information on the non-linear interactive tools.)" (stsdas.analysis.fitting)
autocorr "Autocorrelate an image." (stsdas.analysis.fourier)
bracewell "Create functions and view them with FTs" (stsdas.analysis.fourier)
carith "Multiply or divide complex images." (stsdas.analysis.fourier)
crosscor "Cross-correlate two images." (stsdas.analysis.fourier)
factor "Display prime factors of a number." (stsdas.analysis.fourier)
fconvolve "Convolve two images." (stsdas.analysis.fourier)
forward "Compute forward Fourier transform of an image." (stsdas.analysis.fourier)
frompolar "Convert amplitude & phase to real & imaginary parts." (stsdas.analysis.fourier)
ftplot "View 4-way data and FTs." (stsdas.analysis.fourier)
inverse "Compute inverse Fourier transform of an image." (stsdas.analysis.fourier)
listprimes "Display first N prime numbers." (stsdas.analysis.fourier)
mkfunc "Create analytic form test data (image)." (stsdas.analysis.fourier)
powerspec "Compute the power spectrum of an image." (stsdas.analysis.fourier)
shift "Shift an image by a specified number of pixels." (stsdas.analysis.fourier)
taperedge "Apply a cosine bell or linear taper to image edges." (stsdas.analysis.fourier)
testfunc "Generate analytic form test data (ASCII)." (stsdas.analysis.fourier)
topolar "Convert real & imaginary parts to amplitude & phase." (stsdas.analysis.fourier)
eqxy "Get (x,y) from a table of (ra,dec) given the pltsol coeff." (stsdas.analysis.gasp)
extgst "Extract selected columns stars from a list of tables." (stsdas.analysis.gasp)
fttostt "Convert a list of FITS tables to STSDAS tables." (stsdas.analysis.gasp)
intrep "Find coordinates at the cursor." (stsdas.analysis.gasp)
makewcs "Write the WCS on the image header based on the plate sol." (stsdas.analysis.gasp)
pltsol "Calculate plate solution from table of positions." (stsdas.analysis.gasp)
pxcoord "List pixel coordinates of guide stars." (stsdas.analysis.gasp)
regions "Produce guide star region files (as STSDAS tables)." (stsdas.analysis.gasp)
sgscind "Search the guide star catalog index." (stsdas.analysis.gasp)
stgindx "Copy the catalog index to an STSDAS table." (stsdas.analysis.gasp)
targets "Find target coordinates based on guide stars." (stsdas.analysis.gasp)
xyeq "Get (ra,dec) from a table of (x,y) given the pltsol coeff." (stsdas.analysis.gasp)
bmodel "Build a model image from isophotal analysis data." (stsdas.analysis.isophote)
elapert "Create polygon files for use in APPHOT polygonal photometry." (stsdas.analysis.isophote)
ellipse "Fit elliptical isophotes." (stsdas.analysis.isophote)
isoimap "Graph ellipses superposed over the gray-scale image display." (stsdas.analysis.isophote)
isomap "Graph ellipses superposed over image contours." (stsdas.analysis.isophote)
isopall "Graph summary of all results from isophotal analysis." (stsdas.analysis.isophote)
isoplot "Graph results of isophotal analysis." (stsdas.analysis.isophote)
adaptive "Adaptive filter." (stsdas.analysis.restore)
filterpars "Pset for setting filter parameters used in the wiener task. " (stsdas.analysis.restore)
hfilter "Adaptive low-pass filter based on H-transform." (stsdas.analysis.restore)
lowpars "Pset for setting the low-pass filter parameters used in the" (stsdas.analysis.restore)
lucy "Deconvolve an image using Leon Lucy's algorithm." (stsdas.analysis.restore)
mem "Deconvolve an image by the Maximum Entrophy Method (MEM)." (stsdas.analysis.restore)
modelpars "Pset for setting model parameters used in the wiener task." (stsdas.analysis.restore)
noisepars "Pset for setting noise parameters used in the wiener task." (stsdas.analysis.restore)
psfpars "Pset for setting psf parameters used in the wiener task. " (stsdas.analysis.restore)
sclean "Sigma-CLEAN deconvolution of 2-d images." (stsdas.analysis.restore)
wiener "Deconvolve a 2-dimensional image using a noniterative " (stsdas.analysis.restore)
bhkmethod "Compute the generalized Kendall's tau correlation coefficient" (stsdas.analysis.statistics)
buckleyjames "Compute linear regression coeffs based on Kaplan-Meier residuals" (stsdas.analysis.statistics)
censor "Information about the censoring indicator in survival analysis" (stsdas.analysis.statistics)
coxhazard "Compute the correlation probability by Cox's proportional " (stsdas.analysis.statistics)
emmethod "Compute linear regression coeff for a normal distribution of " (stsdas.analysis.statistics)
kmestimate "Compute the Kaplan-Meier estimator of a randomly censored " (stsdas.analysis.statistics)
kolmov "Kolmogorov-Smirnov test for goodness of fit" (stsdas.analysis.statistics)
schmittbin "Compute regression coefficients by Schmitt's method" (stsdas.analysis.statistics)
spearman "Compute the generalized Spearman's rho correlation coefficient" (stsdas.analysis.statistics)
survival "Provide background & overview of survival analysis" (stsdas.analysis.statistics)
twosampt "Determine if two sets of data are from the same population" (stsdas.analysis.statistics)
coadd "Calculate average measurements in specified phase intervals." (stsdas.analysis.timeseries)
delaytime "Calculate light time difference from observer to solar system " (stsdas.analysis.timeseries)
filterphot "Transform flux measurement to standard photometric system." (stsdas.analysis.timeseries)
orderphase "Order time series observations by fractional phases." (stsdas.analysis.timeseries)
polarimetry "Reduce HSP polarimetric data." (stsdas.analysis.timeseries)
subsky "Subtract background flux from target+background flux." (stsdas.analysis.timeseries)
acoadd "Image coaddition using Lucy Method with optional acceleration." (stsdas.contrib)
gaussfit "Least squares and robust estimation program." (stsdas.contrib)
redshift "Tasks for determining redshifts and dispersions." (stsdas.contrib)
specfit "Nonlinear fitting for 1-D images and spectra using simplex" (stsdas.contrib)
or "Levenberg-Marquardt method." (stsdas.contrib)
vla "Spectral image reduction for VLA data." (stsdas.contrib)
fquot "Redshift and velocity dispersion using the Fourier Quotient technique" (stsdas.contrib.redshift)
xcor "Redshift and velocity dispersion using the cross-correlation technique" (stsdas.contrib.redshift)
intensity "Compute total intensity from 3-d velocity cube." (stsdas.contrib.vla)
smooth "Smooth a data cube along the velocity or spatial dimensions." (stsdas.contrib.vla)
velocity "Compute 2-d velocity images from 3-d data cubes." (stsdas.contrib.vla)
sdisplay "Image display package for SAOImage display device." (stsdas.graphics)
stplot "General plotting utilities." (stsdas.graphics)
compass "Draw north and east arrows." (stsdas.graphics.sdisplay)
disconlab "Display image and overlay contours and coordinates." (stsdas.graphics.sdisplay)
dsimg "Save the image display buffer to an image." (stsdas.graphics.sdisplay)
hltorgb "Transform brightness and hue to red, green, and blue." (stsdas.graphics.sdisplay)
im2gki "Send an image to a IRAF GIO graphics device." (stsdas.graphics.sdisplay)
imdisp_pos "Determine image location in image display." (stsdas.graphics.sdisplay)
mosaic_display "Display many images in a single image display buffer." (stsdas.graphics.sdisplay)
overlap "Overlap two images by a certain amount of lines or columns." (stsdas.graphics.sdisplay)
pltcmap "Plot a color map image." (stsdas.graphics.sdisplay)
rashead "Show rasterfile header information." (stsdas.graphics.sdisplay)
rastoim "Convert rasterfile to IRAF image." (stsdas.graphics.sdisplay)
saodump "Make image and colormap files from SAOimage display." (stsdas.graphics.sdisplay)
scmapc "Reformat SAOimage colormap for Celco." (stsdas.graphics.sdisplay)
axispar "Specify axis and scaling parameters (pset for 'sgraph')" (stsdas.graphics.stplot)
catlim "Specify star catalog limits (pset for 'skymap')." (stsdas.graphics.stplot)
colnames "Specify star catalog column names (pset for 'skymap')." (stsdas.graphics.stplot)
dvpar "Specify device parameters (pset)." (stsdas.graphics.stplot)
fieldplot "Graph vector field." (stsdas.graphics.stplot)
grlist "Parse a group format image section." (stsdas.graphics.stplot)
grplot "Overplot several images from a group format file." (stsdas.graphics.stplot)
grspec "Interactively plot several images from a group format file." (stsdas.graphics.stplot)
histogram "Plot or list the histogram of a table column, image, or list." (stsdas.graphics.stplot)
igi "Interactive Graphics Interpreter." (stsdas.graphics.stplot)
newcont "Draw contours of two-dimensional data." (stsdas.graphics.stplot)
pltpar "Specify graph parameters (pset for 'sgraph')." (stsdas.graphics.stplot)
psikern "IRAF GIO Kernel to produce PostScript output." (stsdas.graphics.stplot)
rc "Interactively label a plot with text strings." (stsdas.graphics.stplot)
sgraph "Graph one or more image sections or lists." (stsdas.graphics.stplot)
skymap "Draw a star chart." (stsdas.graphics.stplot)
siaper "Plot the science instrument apertures of HST." (stsdas.graphics.stplot)
wcslab "Produce sky projection grids for images." (stsdas.graphics.stplot)
wlpars "Pset to specify characteristics of WCS labelled graphs." (stsdas.graphics.stplot)
wcspars "Pset to specify a WCS." (stsdas.graphics.stplot)
ctools "General calibration tools." (stsdas.hst_calib)
foc "Tasks for calibrating FOC data." (stsdas.hst_calib)
fos "Tasks for calibrating FOS data. " (stsdas.hst_calib)
hrs "Tasks for calibrating HRS data. " (stsdas.hst_calib)
hsp "Tasks for calibrating HSP data. " (stsdas.hst_calib)
synphot "Tasks for synthetic photometry and modelling instrument response. " (stsdas.hst_calib)
wfpc "Tasks for calibrating WFPC and WFPC-2 data. " (stsdas.hst_calib)
chcalpar "Modify calibration keyword values." (stsdas.hst_calib.ctools)
ckwfoc "@ FOC calibration parameters (p-set)." (stsdas.hst_calib.ctools)
ckwfos "@ FOS calibration parameters (p-set)." (stsdas.hst_calib.ctools)
ckwhrs "@ HRS calibration parameters (p-set)." (stsdas.hst_calib.ctools)
ckwhsp "@ HSP calibration parameters (p-set)." (stsdas.hst_calib.ctools)
ckwwfpc "@ WFPC calibration parameters (p-set)." (stsdas.hst_calib.ctools)
ckwwfp2 "@ WFPC-2 calibration parameters (p-set)." (stsdas.hst_calib.ctools)
fwplot "Plot calibrated flux versus wavelength." (stsdas.hst_calib.ctools)
getcal "Populate a pset with calibration parameter values." (stsdas.hst_calib.ctools)
groupmod "Add/delete group parameters from multigroup data." (stsdas.hst_calib.ctools)
hstephem "Convert ST orbit ephemeris file to an STSDAS table." (stsdas.hst_calib.ctools)
mkmultispec "Combine wavelength and data with the MULTISPEC MWCS." (stsdas.hst_calib.ctools)
mkweight "Make a simple weighting file for use in task specalign." (stsdas.hst_calib.ctools)
north "Print the position angles of images." (stsdas.hst_calib.ctools)
poffsets "Find pixel offsets using cross-correlation." (stsdas.hst_calib.ctools)
pprofile "Plot or pint radial profile or encircled energy." (stsdas.hst_calib.ctools)
putcal "Place parameter values from a calibration pset into data files" (stsdas.hst_calib.ctools)
rapidlook "Display a 1-D multigroup image as a 2-D image." (stsdas.hst_calib.ctools)
rcombine "Average or sum rapid-readout data with propagation of errors." (stsdas.hst_calib.ctools)
rdssa "Convert the PDB SVDF.DAT file into an SDAS table." (stsdas.hst_calib.ctools)
resample "Resample calibrated fluxes to a linear wavelength scale." (stsdas.hst_calib.ctools)
specalign "Combine spectra such as FP-SPLIT Observations. " (stsdas.hst_calib.ctools)
vac2air "Convert wavelength scales from vacuum to air." (stsdas.hst_calib.ctools)
foccs "FOC calibration software package." (stsdas.hst_calib.foc)
focgeom "FOC geometry package." (stsdas.hst_calib.foc)
focphot "FOC photometry package." (stsdas.hst_calib.foc)
focprism "FOC prism package." (stsdas.hst_calib.foc)
focutility "FOC utility package, including 'calfoc'." (stsdas.hst_calib.foc)
resfind "Identify and average reseau positions in flat field images." (stsdas.hst_calib.foc.foccs)
mkgeofil "Combine optical and camera distortion to make a GEO file." (stsdas.hst_calib.foc.foccs)
encounts "Compute encircled energy (counts) for star images." (stsdas.hst_calib.foc.foccs)
fextract "Extract regions around stars in a focus image." (stsdas.hst_calib.foc.foccs)
faradius "Compute average radius of autocorrelation of star images." (stsdas.hst_calib.foc.foccs)
fradius "Compute average radius of star images." (stsdas.hst_calib.foc.foccs)
fsquares "Compute sum-of-squares sharpness criterion." (stsdas.hst_calib.foc.foccs)
fblot "Blot out focus images of a star." (stsdas.hst_calib.foc.foccs)
fgauss "Fit a Gaussian to output from 'fsquares' to find focus." (stsdas.hst_calib.foc.foccs)
fhyper "Fit a hyperbola to output from 'faradius' or 'fradius' to " (stsdas.hst_calib.foc.foccs)
flall "Do all steps to make a flat field (UNI file)." (stsdas.hst_calib.foc.foccs)
flborder "Replace border by extrapolating from nearest pixel." (stsdas.hst_calib.foc.foccs)
flcorner "Replace corner of f/48 internal flat with external flat." (stsdas.hst_calib.foc.foccs)
flmakev "Make a mask table from a mask image for use by 'flvmask'." (stsdas.hst_calib.foc.foccs)
flnorm "Normalize a flat field by dividing by average of middle region." (stsdas.hst_calib.foc.foccs)
flvmask "Apply a mask table to interpolate along vertical lines." (stsdas.hst_calib.foc.foccs)
fitxy "Compute four-parameter linear fit to X,Y vs V2,V3." (stsdas.hst_calib.foc.focgeom)
evalxy "Evaluate the fit computed by 'fitxy'." (stsdas.hst_calib.foc.focgeom)
newgeom "Geometrically correct an image." (stsdas.hst_calib.foc.focgeom)
p2geo "Evaluate polynomial fit file and make a GEO image for 'newgeom'." (stsdas.hst_calib.foc.focgeom)
rappendx "Append reseau entries from one file to another." (stsdas.hst_calib.foc.focgeom)
rdifferx "Plot histogram of differences between entries in separate files." (stsdas.hst_calib.foc.focgeom)
rdirectoryx "Print directory of all entries in a reseau file." (stsdas.hst_calib.foc.focgeom)
rdprint "Print difference between two reseau entries." (stsdas.hst_calib.foc.focgeom)
resavg "Average reseau entries." (stsdas.hst_calib.foc.focgeom)
resfind "Automatically find reseau marks." (stsdas.hst_calib.foc.focgeom)
revalfitx "Evaluate, at certain points, fit produced by 'rfitx'." (stsdas.hst_calib.foc.focgeom)
rextrap "Extrapolate a reseau grid by one row or column on all sides." (stsdas.hst_calib.foc.focgeom)
rfindx "Locate reseau marks in an image." (stsdas.hst_calib.foc.focgeom)
rfitx "Calculate fit of distorted coordinates to reference coordinates." (stsdas.hst_calib.foc.focgeom)
rfixx "Fix holes in reseau file entries." (stsdas.hst_calib.foc.focgeom)
rgenx "Generate a reseau file or entry." (stsdas.hst_calib.foc.focgeom)
rinterx "Perform simple interpolation between reseau grids." (stsdas.hst_calib.foc.focgeom)
rmarkerx "Interactively find approximate location of reseau marks." (stsdas.hst_calib.foc.focgeom)
rplotx "Plot magnified vector differences between reseau grids." (stsdas.hst_calib.foc.focgeom)
rprintx "Print out reseau mark coordinates." (stsdas.hst_calib.foc.focgeom)
rstat "Print statistics about one or two reseau entries." (stsdas.hst_calib.foc.focgeom)
rsubset "Extract or print a subset of a reseau grid." (stsdas.hst_calib.foc.focgeom)
rtodbx "Put reseau data in a form suitable for geometry tasks in" (stsdas.hst_calib.foc.focgeom)
rtransformx "Perform linear transformations on reseau coordinates." (stsdas.hst_calib.foc.focgeom)
slitanglex "Measure the angle of long slit spectrum to AXIS1." (stsdas.hst_calib.foc.focgeom)
tevalfit "Evaluate a surface fit on positions in an ASCII file." (stsdas.hst_calib.foc.focgeom)
(Type ""help foc_conventions" for more information about FOC-specific " (stsdas.hst_calib.foc.focgeom)
darkx "Create a FOC dark count image." (stsdas.hst_calib.foc.focphot)
dezoomx "Dezoom an image, doubling line length in one dimension." (stsdas.hst_calib.foc.focphot)
dqenormx "Normalize a detective efficiency file to unity." (stsdas.hst_calib.foc.focphot)
fflincorr "Correct an FOC image for flat-field saturation." (stsdas.hst_calib.foc.focphot)
fixnoisex "Create a fixed-pattern noise image." (stsdas.hst_calib.foc.focphot)
formatdepx "Create a format-dependent nonuniformity image." (stsdas.hst_calib.foc.focphot)
pprofile "Plot or print radial profile or encircled energy." (stsdas.hst_calib.foc.focphot)
ratiox "Divide two or more images prior to relative DE" (stsdas.hst_calib.foc.focphot)
rremovex "Fill in reseau marks with cosmetic data." (stsdas.hst_calib.foc.focphot)
makephot "Create a photometric calibration file for a prism observation." (stsdas.hst_calib.foc.focprism)
objcalib "Photometrically calibrate an FOC objective prism image." (stsdas.hst_calib.foc.focprism)
objrebin "Rebin an FOC objective prism image." (stsdas.hst_calib.foc.focprism)
simprism "Create a 1- or 2-d simulated objective prism spectrum." (stsdas.hst_calib.foc.focprism)
specextract "Extract a 1-D spectrum from an FOC objective prism image." (stsdas.hst_calib.foc.focprism)
calfoc "Pipeline calibration code for FOC data." (stsdas.hst_calib.foc.focutility)
newgeom "Geometrically correct an image." (stsdas.hst_calib.foc.focutility)
overflowx "Correct an image for 8-bit overflow." (stsdas.hst_calib.foc.focutility)
rsdpbacx "Create RSDP format BAC file for FOC." (stsdas.hst_calib.foc.focutility)
rsdpfmtx "Create RSDP format ITF file for FOC." (stsdas.hst_calib.foc.focutility)
rsdpsdex "Create RSDP format SDE file for FOC." (stsdas.hst_calib.foc.focutility)
rsdpunix "Create RSDP format UNI file for FOC." (stsdas.hst_calib.foc.focutility)
testimx "Generate FOC test data images with RSDP-like headers." (stsdas.hst_calib.foc.focutility)
rsdpparx "Pset with RSDP parameters." (stsdas.hst_calib.foc.focutility)
aperlocy "Analyze a target acquisition image." (stsdas.hst_calib.fos)
apscale "Scale aperture parameters." (stsdas.hst_calib.fos)
calfos "Pipeline calibration for FOS." (stsdas.hst_calib.fos)
fitoffsety "Correct dispersion coeff. for wavelength offsets." (stsdas.hst_calib.fos)
gimpcor "Show magnitude of the calfos gimp correction." (stsdas.hst_calib.fos)
grspec "Make stacked plots of multigroup images." (stsdas.hst_calib.fos)
modeone "Restore and display mode I target acquisition images." (stsdas.hst_calib.fos)
spec_polar "Tasks for reducing and analyzing FOS polarimetry observations." (stsdas.hst_calib.fos)
tarestore "Restore mode I target acquisition images." (stsdas.hst_calib.fos)
unwrap "Remove the 'wrap' from data that has exceeded the internal" (stsdas.hst_calib.fos)
waveoffset "Compute wavelength offset between two spectra." (stsdas.hst_calib.fos)
y_calib "Tasks for deriving the FOS instrument calibration." (stsdas.hst_calib.fos)
calpolar "Perform polarimetry processing of calibrated data." (stsdas.hst_calib.fos.spec_polar)
pcombine "Combine calibrated polarimetry datasets." (stsdas.hst_calib.fos.spec_polar)
polave "Average Stokes parameters for multiple datasets." (stsdas.hst_calib.fos.spec_polar)
polbin "Rebin polarization spectra." (stsdas.hst_calib.fos.spec_polar)
polnorm "Normalize Stokes Q, U, and V by Stokes I." (stsdas.hst_calib.fos.spec_polar)
polplot "Stacked plot of Stokes I and polarization spectra." (stsdas.hst_calib.fos.spec_polar)
absfity "Smooth an FOS sensitivity curve." (stsdas.hst_calib.fos.y_calib)
absseny "Compute an FOS sensitivity curve." (stsdas.hst_calib.fos.y_calib)
deadtimey "Compute FOS paired-pulse coefficients." (stsdas.hst_calib.fos.y_calib)
dispfity "Compute FOS wavelength dispersion coefficients." (stsdas.hst_calib.fos.y_calib)
flatfield "Compute flat field response." (stsdas.hst_calib.fos.y_calib)
linefind "Find spectral lines for wavelength calibration." (stsdas.hst_calib.fos.y_calib)
parthity "Find particle hits and compute dark rate." (stsdas.hst_calib.fos.y_calib)
phay "Pulse height analysis." (stsdas.hst_calib.fos.y_calib)
ybase "Compute Y-base for aperture centers." (stsdas.hst_calib.fos.y_calib)
calhrs "Pipeline calibration for HRS." (stsdas.hst_calib.hrs)
dopoff "Calculate on-board Doppler compensation for specalign." (stsdas.hst_calib.hrs)
obsum "Produce brief, time-ordered summary of groups in data." (stsdas.hst_calib.hrs)
reflux "Apply new absolute sensitivity corrections to HRS spectra.  " (stsdas.hst_calib.hrs)
showspiral "Build and display spiral-search map." (stsdas.hst_calib.hrs)
spiralmap "Build spiral-search map." (stsdas.hst_calib.hrs)
tacount "Calculate observed count rate for target acquisition." (stsdas.hst_calib.hrs)
wavecal "Compute HRS wavelength offset and dispersion coefficients." (stsdas.hst_calib.hrs)
z_calib "Subpackage of tasks for deriving HRS instrument calibration." (stsdas.hst_calib.hrs)
absfitz "Generate a smooth sensitivity curve." (stsdas.hst_calib.hrs.z_calib)
abssenz "Compute the absolute sensitivity ratio." (stsdas.hst_calib.hrs.z_calib)
apershift "Shift the  wavelengths for an object not centered in" (stsdas.hst_calib.hrs.z_calib)
carrousel "Calibrate HRS carrousel position." (stsdas.hst_calib.hrs.z_calib)
cathodemap "Compute the granularity of the HRS photocathode." (stsdas.hst_calib.hrs.z_calib)
centerflux "Compute the flux values for the center of a diode array." (stsdas.hst_calib.hrs.z_calib)
darkstat "Compute statistics on dark count calibration spectra." (stsdas.hst_calib.hrs.z_calib)
darksum "Produce a report on dark count calibration spectra." (stsdas.hst_calib.hrs.z_calib)
deadtimez "Compute HRS paired pulse coefficients." (stsdas.hst_calib.hrs.z_calib)
diodemap "Compute the diode response non-uniformities." (stsdas.hst_calib.hrs.z_calib)
focusz "Estimate HRS detector focus." (stsdas.hst_calib.hrs.z_calib)
incidence "Calibrate incidence angle." (stsdas.hst_calib.hrs.z_calib)
lmap "Compute the photocathode mapping function " (stsdas.hst_calib.hrs.z_calib)
mergecar "Merge and bin spectra from different carrousel positions." (stsdas.hst_calib.hrs.z_calib)
odeadtimez "Compute the HRS paired-pulse coefficients." (stsdas.hst_calib.hrs.z_calib)
parthitz "Locate particle events and compute dark rate." (stsdas.hst_calib.hrs.z_calib)
pha_all "Plot PHA results for all diodes." (stsdas.hst_calib.hrs.z_calib)
pha_center "Plot histogram of PHA results for all diodes." (stsdas.hst_calib.hrs.z_calib)
pha_diode "Plot detailed summary of PHA results for specific diodes." (stsdas.hst_calib.hrs.z_calib)
pha_rms "Plot histogram of PHA errors for all diodes." (stsdas.hst_calib.hrs.z_calib)
pha_sig2rms "Plot histogram of PHA signal-to-noise ratio for all diodes." (stsdas.hst_calib.hrs.z_calib)
pha_summary "Produce report on results of PHA observations." (stsdas.hst_calib.hrs.z_calib)
pha_text "Print text summary of PHA results." (stsdas.hst_calib.hrs.z_calib)
phaz "Perform a Pulse Height Distribution analysis (PHA)." (stsdas.hst_calib.hrs.z_calib)
quality "Generate HRS diode quality image." (stsdas.hst_calib.hrs.z_calib)
ripple "Compute the HRS ripple function coefficients." (stsdas.hst_calib.hrs.z_calib)
smap "Compute the photocathode mapping function (i.e., the " (stsdas.hst_calib.hrs.z_calib)
tacarrousel "Perform target acquisition carrousel calibration." (stsdas.hst_calib.hrs.z_calib)
tadiodepos "Find a target acquistion image on the main diode array." (stsdas.hst_calib.hrs.z_calib)
tamode "Analyze a target acquisition field map." (stsdas.hst_calib.hrs.z_calib)
tascale "Scale aperture parameters." (stsdas.hst_calib.hrs.z_calib)
vigcompute "Compute the HRS vignetting function." (stsdas.hst_calib.hrs.z_calib)
vigfit "Smooth HRS vignetting function." (stsdas.hst_calib.hrs.z_calib)
woffsets "Find the wavelength offsets using cross-correlation." (stsdas.hst_calib.hrs.z_calib)
wshift "Find wavelength offset from the spectral line template." (stsdas.hst_calib.hrs.z_calib)
yfind "Find Y-deflections of HRS spectral orders." (stsdas.hst_calib.hrs.z_calib)
yfit "Compute Y-deflection calibration coefficients." (stsdas.hst_calib.hrs.z_calib)
abssenv "Calculate digital absolute sensitivity." (stsdas.hst_calib.hsp)
analoglin "Verify the analog linearity of HSP detectors." (stsdas.hst_calib.hsp)
apercen "Find the aperture center (location phase I)." (stsdas.hst_calib.hsp)
calhsp "Perform pipeline calibration correction of HSP data files." (stsdas.hst_calib.hsp)
darkv "Calculate dark signals of individual observations." (stsdas.hst_calib.hsp)
deadtimev "Calibrate the deadtime (digital linearity)." (stsdas.hst_calib.hsp)
flex "Calibrate HSP optical bench flexure as functions" (stsdas.hst_calib.hsp)
focusv "Determine electronic focus calibration." (stsdas.hst_calib.hsp)
gainfac "Calculate analog gain factors." (stsdas.hst_calib.hsp)
imgscale "Calibrate aperture plate scale (location phase II)." (stsdas.hst_calib.hsp)
lgaperloc "Calibrate location of a large aperture (location phase III)." (stsdas.hst_calib.hsp)
monitor "Reduce particle monitor data obtained from HSP." (stsdas.hst_calib.hsp)
parthitv "Remove particle event." (stsdas.hst_calib.hsp)
phav "Calibrate discriminator threshold setting." (stsdas.hst_calib.hsp)
poleffv "Calculate polarization efficiency." (stsdas.hst_calib.hsp)
polpav "Calibrate position angle offset." (stsdas.hst_calib.hsp)
polverify "Verify polarimetry calibrations." (stsdas.hst_calib.hsp)
polyepoch "Fit polynomials to coefficients as functions of the epoch." (stsdas.hst_calib.hsp)
polyeval "Evaluate calibration corrections." (stsdas.hst_calib.hsp)
polyfit "Fit a polynomial to a specified quantity." (stsdas.hst_calib.hsp)
posvel "Calculate position and velocity vector of the spacecraft." (stsdas.hst_calib.hsp)
relsen "Calculate relative sensitivity (including instrumental" (stsdas.hst_calib.hsp)
scatterv "Calculate scattered light contribution." (stsdas.hst_calib.hsp)
smaperloc "Calibrate location of a small aperture (location phase III)." (stsdas.hst_calib.hsp)
taflat "Calculate target acquisition aperture flat field." (stsdas.hst_calib.hsp)
twodpolyfit "Two dimensional polynomial fit of temperature and epoch." (stsdas.hst_calib.hsp)
voltfac "Calculate high voltage factors." (stsdas.hst_calib.hsp)
warmup "Calculate dark signal as a function of warmup time." (stsdas.hst_calib.hsp)
calcband "Calculate a model passband." (stsdas.hst_calib.synphot)
calcphot "Calculate photometric quantities for spectra and passbands." (stsdas.hst_calib.synphot)
calcspec "Calculate a model spectrum." (stsdas.hst_calib.synphot)
countrate "Evaluate the photometric count rate of the HST." (stsdas.hst_calib.synphot)
evalband "Compute the instrument passband for an observation mode." (stsdas.hst_calib.synphot)
fitband "Fit a passband model to data using Amoeba simplex method." (stsdas.hst_calib.synphot)
fitgrid "Fit a spectrum model to a grid of spectral data." (stsdas.hst_calib.synphot)
fitspec "Fit a spectrum model to data using Amoeba simplex method." (stsdas.hst_calib.synphot)
genwave "Interactively generate a wavelength set." (stsdas.hst_calib.synphot)
grafcheck "Check an instrument graph table for bad rows." (stsdas.hst_calib.synphot)
graflist "List the components downstream from a given component." (stsdas.hst_calib.synphot)
grafpath "Print keywords and component names for a path through " (stsdas.hst_calib.synphot)
grafplot "Plot the components downstream from a given component." (stsdas.hst_calib.synphot)
imspec "Convert an image to a synphot spectrum or vice versa." (stsdas.hst_calib.synphot)
plband "Plot a set of passbands." (stsdas.hst_calib.synphot)
plratio "Plot the ratio of observed to synthetic spectral or" (stsdas.hst_calib.synphot)
plspec "Plot spectral and photometric data." (stsdas.hst_calib.synphot)
pltrans "Plot photometric transformation diagrams (e.g., color-color" (stsdas.hst_calib.synphot)
or "color-magnitude)." (stsdas.hst_calib.synphot)
refdata "Pset to specify common synphot parameters." (stsdas.hst_calib.synphot)
calwfp "Run the WF/PC calibration code on an input image. " (stsdas.hst_calib.wfpc)
checkwfpc "Perform consistency checks on a WF/PC reference file." (stsdas.hst_calib.wfpc)
combine "Combine images using various algorithms & pixel rejection schemes" (stsdas.hst_calib.wfpc)
engextr "Extract info. from WF/PC engineering data (.X0H and .X0D) files" (stsdas.hst_calib.wfpc)
metric "Translate WFPC pixel coordinates to RA & Dec with geometric " (stsdas.hst_calib.wfpc)
noisemodel "Determine noise model parameters from CCD frames." (stsdas.hst_calib.wfpc)
pixcoord "Compute pixel coordinates of stars in an image." (stsdas.hst_calib.wfpc)
qwmosaic "Quick mosaic of the four WFPC frames into one image." (stsdas.hst_calib.wfpc)
seam "Smooth the boundaries between mosaicked WFPC frames." (stsdas.hst_calib.wfpc)
u_calib "+ Tasks for deriving the WFPC-2 instrument calibration." (stsdas.hst_calib.wfpc)
wfixup "Interpolate over bad columns in a WFPC frame." (stsdas.hst_calib.wfpc)
wmosaic "Mosaic the four WFPC frames into one image" (stsdas.hst_calib.wfpc)
wstatistics "Compute & print WFPC image pixel statistics." (stsdas.hst_calib.wfpc)
flagflat "Flag WFPC flat field pixels which are abnormally high or low" (stsdas.hst_calib.wfpc.w_calib)
mka2d "Create or modify an A-to-D correction reference file for WFPC." (stsdas.hst_calib.wfpc.w_calib)
mkphottb "Create a synthetic photometry lookup table for WFPC." (stsdas.hst_calib.wfpc.w_calib)
normclip "Normalize WFPC flat fields among chips. " (stsdas.hst_calib.wfpc.w_calib)
psfextr "Extract a subsection of an image to be put in the PSF library." (stsdas.hst_calib.wfpc.w_calib)
streakflat "Generate WFPC flat field from streak exposures of the Earth." (stsdas.hst_calib.wfpc.w_calib)
edge "2-D image edge massaging." (stsdas.playpen)
fill "Baade-Lucy background "filling" algorithm." (stsdas.playpen)
hstpos "Plot the position of HST on a map of the world" (stsdas.playpen)
hsubtract "Baade-Lucy background subtraction algorithm." (stsdas.playpen)
immean "Compute mean of an image and save value as task parameter." (stsdas.playpen)
jimage "Create a jitter image from U2,U3 coordinates in a table." (stsdas.playpen)
lgrlist "Expand a list of images and group numbers" (stsdas.playpen)
newredshift "Change the redshift of spectra" (stsdas.playpen)
imagfe "Register using common features of image data." (stsdas.playpen.registration)
reflresamp "Resample or reflect an image or vector using " (stsdas.playpen.registration)
rheaders "Register using FITS coordinate parameters." (stsdas.playpen.registration)
vecfea "Register using common features of vector data." (stsdas.playpen.registration)
(VAX "<-> Sun only)." (stsdas.toolbox)
mvrefer "Move reference files between systems" (stsdas.toolbox.convfile)
networking "Provide background information about IRAF networking" (stsdas.toolbox.convfile)
sun2vax "Convert images from Sun to Vax binary format" (stsdas.toolbox.convfile)
vax2sun "Convert images from Vax to Sun binary format" (stsdas.toolbox.convfile)
tconvert "Convert table format between Vax and Sun binary format" (stsdas.toolbox.convfile)
chgkeywrd "Change keywords in a header file." (stsdas.toolbox.headers)
eheader "Interactively edit an image header. " (stsdas.toolbox.headers)
groupmod "Add/delete group parameters from multigroup data." (stsdas.toolbox.headers)
hcheck "Check image header keywords." (stsdas.toolbox.headers)
hdiff "Display the differences between two image headers." (stsdas.toolbox.headers)
imagree "Change header keywords to agree with the image name." (stsdas.toolbox.headers)
iminfo "Print an instrument-specific header for a list of GEIS images" (stsdas.toolbox.headers)
imkeyname "Rename an image using a name from a header keyword." (stsdas.toolbox.headers)
stfhistory "Add history records to an STSDAS image header." (stsdas.toolbox.headers)
addmasks "Combine several masks or bad pixel lists." (stsdas.toolbox.imgtools)
boxinterp "Fill areas with smoothed values from surrounding " (stsdas.toolbox.imgtools)
copymask "Copy mask from one format into another." (stsdas.toolbox.imgtools)
gcopy "Generic multi-group copy utility." (stsdas.toolbox.imgtools)
gstatistics "Compute and print image pixel statistics for all groups." (stsdas.toolbox.imgtools)
imcalc "Perform general arithmetic operations on images." (stsdas.toolbox.imgtools)
imfill "Set fill value in image according to a mask." (stsdas.toolbox.imgtools)
iminsert "Insert an image into another by either adding, " (stsdas.toolbox.imgtools)
improject "Project image along one axis decreasing the " (stsdas.toolbox.imgtools)
imverify "Verify that an image was copied correctly." (stsdas.toolbox.imgtools)
listarea "Print an area of an image." (stsdas.toolbox.imgtools)
mkgauss "Generate a 2-D image having an object of Gaussian type." (stsdas.toolbox.imgtools)
moveheader "Combine the header and pixels from two images," (stsdas.toolbox.imgtools)
pixedit "Screen editor for image pixels" (stsdas.toolbox.imgtools)
pixlocate "Print positions of all points inside (or outside) a" (stsdas.toolbox.imgtools)
rbinary "Create an image from a binary file." (stsdas.toolbox.imgtools)
stack "Stack images to form a new image with one more dimension." (stsdas.toolbox.imgtools)
xy2rd "Translate a 2-D image pixel coordinate to right ascension" (stsdas.toolbox.imgtools)
compspec "Create a spectrum from an algebraic expression." (stsdas.toolbox.testdata)
overscan "Simulate the effect of overscanning in an image." (stsdas.toolbox.testdata)
ddiff "Print differences between two directory trees." (stsdas.toolbox.tools)
epoch "Convert between different time formats." (stsdas.toolbox.tools)
fparse "Parse file specifications and leave results in parameters." (stsdas.toolbox.tools)
mkapropos "Make the apropos database." (stsdas.toolbox.tools)
tprecess "Precess images, tables, or lists of coordinates." (stsdas.toolbox.tools)
uniqfile "Give a file a unique name prior to archiving." (stsdas.toolbox.tools)
uniqid "Create a unique character string identifier." (stsdas.toolbox.tools)
uniqname "Create a unique file name for archiving." (stsdas.toolbox.tools)
uniqtab "Give all the files in an STSDAS table unique names." (stsdas.toolbox.tools)