Catalogs and Surveys Group
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Sky Surveys
HST Support
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Our group has been involved in a wide variety of software development over the years. A number of these software pakages are publically available.

  • H-Compress is a widely-used "lossy-compression" technique developed by Rick White and used by our group to compress the DSS images by ~10x for public distribution.
  • GetImage is "unsupported software" developed by STScI to recontruct a DSS image for any position in the sky. Developed for VMS and Unix platforms.
  • HTM (Hierarchical Triangulated Mesh) is an efficient numerical/geometical way of partitioning the sky into smaller and smaller areas that is used extensively by the GSC-II and SDSS projects. It is also becoming more popular in the VO toolkit.
  • ShowSky is prototype JAVA code used for accessing and visualing DSS images and various catalogs as well as HTM boundaries. Precursor to VO tools.
  • VO Registry is a prototype implementation of a searchable database for publishing and locating VO services and application.

In addition to these tools, we also provide links to other software that we use

  • CFITSIO is a popular FITS file subroutine/class library
  • FITS File Verifier is an on-line tool to verify FITS file compliance
  • Fv is an easy to use interactive FITS file editor
  • WCSlib is a class library for manipulates World Coordinate System keywords in FITS headers
  • WCSTools is another popular library for WCS manipulation
  • SAOImage ds9 is a popular visualization tool
  • Aladin is an extremely powerful visualization tool that is widely used
  • IDL Astronomy Users Library is an invaluable add-on for anyone who uses IDL (Interactive Data Language) for astronomical visualization and analysis (like us!)
  • Observing tools (calendars and calculators)
Last Modified: 2016-06-20 14:42