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The Space Telescope Science Data Analysis System (STSDAS)
is a software package for reducing and analyzing
astronomical data. It is layered on top of
IRAF and
provides general-purpose tools for astronomical data analysis as
well as routines specifically designed for HST data.
In particular, STSDAS contains all the programs used for the calibration
and reduction of HST data in the STScI post-observation
processing pipelines.
The TABLES
package sits alongside STSDAS and provides tools and
libraries for working with tabular data. STSDAS requires TABLES, but
one may use TABLES without STSDAS. Together, these two packages
comprise STSDAS/TABLES. The current release of STSDAS/TABLES is v3.8 (Feb 2008).
STSDAS and TABLES are products of the
Science Software Branch
of the Operations and Engineering Division at STScI.
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