To assist users of the software packages I support (and also myself) I keep a on line record of changes I have made to these packages.
- CDBS The calibration database (CDBS) tracks reference files that are used to process images taken by the HST. One main purpose of CDBS is to indicate to the user what set of reference files to use if the user wishes to re-process his or her observations.
- Tattler Tattler is a Python script that compares a directory tree to a CVS repository and reports the differences to the site administrator. It is intended as a check for loosely controlled software, like stsdas, where the programmers aren't locked out of changing the source tree but where the software is also in CVS.
- Fitsio The fitsio package supports conversion of fits files to other image and table formats supported by IRAF and STSDAS. Fits is a portable image format supported by all major astronomical analysis packages.
- GethelpThe gethelp script allows iraf help to be viewed in a web browser by converting help files to html on the fly.
- GASP The gasp package supports astrometry using the Guide Star Survey scans.
- Synphot The synthetic photometry package computes the predicted flux seen through the HST for a specified target and observing mode. The flux can either be output as a function of wavelength or integrated over a passband.
- Ttools The ttools package is a set of utilities useful for manipulating STSDAS tables. The STSDAS table format is one of the principal data formats used by the STSDAS and is primarily used to store heterogeneous data.
- Selector library The selector library supports a notation for extracting a subset of the rows and/or columns of a table.
- XC and Mkpkg The XC and mkpkg tasks are part of the iraf distribution and are used to compile source code in a portable manner. Recent enhancements increase support for C code.
- Other software Other software I support are mostly stsdas tasks under the tools package.