SSB Download Server

Space Telescope Science Institute

Science Software Branch Download Server

Legacy information

The information on this page is outdated and not particularly relevent anymore, but it may be useful to those who still have older (pre-2014) SSB installations in /usr/stsci.

Installing CDBS locally on a Mac

If you're on the STScI internal network, you can use the CDBS on the Central Store (in /grp/hst/cdbs).

If you have a Mac laptop, you may want to install a local copy of CDBS data from the CDBS package. The data will be installed into /usr/stsci/stdata. The CDBS package can be downloaded from or accessed directly from the Central Store (/grp/software/osx/cdbs.dmg).

You specify where the CDBS data is by setting the environment variable $crrefer. This is IRAF, so remember to put a "/" at the end of the directory name.

Removing software installed by old DMGs

There is a Macintosh package that will remove the material installed by the old DMG files (in /usr/stsci). You have to "install" it to make it remove the old software. It is available here. You should only need to run this once.