ANGSIZ: A general and practical method for calculating cosmological distances
ASSIST : implements a uniform graphical interface to analysis systems, documentation, and other community memory.
Astrometrix : is the first astrometric calibration tool developed at TERAPIX
BHSKY: Visual distortions near a black hole
BLOCK: A Bayesian block method to analyze structure in photon counting data
BSGMODEL: The Bahcall-Soneira Galaxy Model
CFITSIO : FITS File Subroutine Library
CHIANTI: A database for astrophysical emission line spectroscopy
CLOUDY: Numerical simulation of plasmas and their spectra
CMBFAST: A microwave anisotropy code
CONSKY: Sky CCD Integration Simulation
COSMICS: Cosmological initial conditions and microwave anisotropy codes
CSENV: A code for the chemistry of CircumStellar ENVelopes
DAOPhot : Stellar Photometry and related packages from Peter Stetson at DAO/HIA, see agreement for redistribution or access to the source code
dss & dss2 : Digitized Sky Survey image extraction software
DDSCAT: The Discrete Dipole approximation for Scattering and absorption of light by irregular particles
Drizzle : Mosaic Image combination processing program
DUSTY: Radiation transport in a dusty environment
ECLIPSE : a suite of IR datacube processing software. Includes ISAAC, CONICA, WFI, Lua and ADONIS add-ons
EXTINCT: A Computerized Model of Large-Scale Visual Interstellar Extinction
FASTELL: Fast calculation of a family of elliptical mass gravitational lens models
fitsverify : FITS format checker
GADGET: A code for cosmological simulations of structure formation
HDF5 : is a unique technology suite that makes possible the management of extremely large and complex data collections.
HEASARC FITS toolset ( FTOOLS ) : FITSIO This directory contains files related to version 3.410 of the FITSIO subroutine package for reading and writing data files in FITS (Flexible Image Transport System) format. Also: FTOOLS (FITS Tools) This directory contains the FTOOLS distribution file for Suns, DECstations, Alpha and VAX computers. Distribution for both the Public and Develop releases of FTOOLS are located here. This is also the distribution point for XSELECT as of the version 2.4c Develop release.
Hipparcos Transit Tools : Two small Fortran applications (td2uv and td2gf) for processing transit data
HyperZ : Photometric Redshift Code
Icosahedron: The Icosahedron Package for Pixelizing the Sphere
ISIS: A method for optimal image subtraction
JSkyCalc: A Convenient, Portable Observing Aid
LENSKY: Galactic Microlensing Probability
MILLISEARCH: A Search for Millilensing in BATSE GRB Data
MLAPM: Simulating Structure Formation from Collisionless Matter
Mongo and Its Variants A SuperMongo by by Robert Lupton and Patricia Monger
NBODY2: A Direct N-Body Integration Code
NOVAS : Naval Observatory Vector Astrometry Subroutines)
PMcode: Particle-Mesh code for cosmological simulations
PopRatio: A program to calculate atomic level populations in astrophysical plasmas
RADPACK: A RADical compression analysis PACKage for fitting to the CMB
RATRAN: Radiative transfer and molecular excitation in one and two dimensions
RVSAO: Digital redshifts and radial velocities
SCAMP : which reads SExtractor catalogs and computes astrometric and photometric solutions for any arbitrary sequence of FITS images in a completely automatic way.
SExtractor : which finds positions of sources in images.
SkyMaker : is a program that simulates astronomical images.
SLOPES: least-squares linear regression lines for bivariate datasets
SPECTRUM: A stellar spectral synthesis program
SPH_1D: Hierarchical gravity/SPH treecode for simulations of interacting galaxies
StarFinder: A code for stellar field analysis
SWarp : which resamples and co-adds together FITS images using any astrometric projection defined in the WCS standard.
TIM (Telescope Imaging Model) ( PSF software for HST ) - TinyTIM PSF software for HST
Tria Image Processing ( Tria ) - Tria Image Processing provides fast and effective blind deconvolution (de-blurring) of optical and non-optical images.
wcstools : World Coordinate System software tools and library from Doug Mink at SAO
WeightWatcher : a program that combines weight-maps, flag-maps and polygon data in order to produce control maps which can directly be used in astronomical image-processing packages.
WINGSPAN: A WINdows Gamma-ray SPectral Analysis program
Xephem: An Interactive Ephemeris for X Windows/Motif ( XEPHEM ) Xephem is an interactive astronomical ephemeris program for X Windows systems.
XSPEC: An X-ray spectral fitting package
XSTAR: A program for calculating conditions and spectra of photoionized gases
Yale Observatory iMAge Manipulation Application ( YO MAMA ) - Yale Observatory iMAge Manipulation Application (yomama) is a java tool for FITS image manipulation and viewing.
SAO Telescope Data Center (Smithsonian Astrophysical Observatory)
RVSAO: an IRAF package for finding radial velocities from spectra
RGSC a program for searching the Space Telescope Guide Star Catalog.
SKYMAP: a program for mapping star catalogs onto the sky
STAR: a program for searching star catalogs