STScI Logo  Space Telescope Imaging Spectrograph STAN -
September 2000  | HST Spectroscopy
STIS/GHRS/FOS | | STScI Analysis Newsletter            September
2000 | |                                                     |
CALSTIS V2.8 Released  Echelle Scattered Light Correction
Software    CALSTIS V2.8 Released  Calstis version 2.8 was
installed in the OTFC pipeline on August 30, 2000. Calstis 2.8
is not yet available for download, but will be in a future
STSDAS release. There were two bug fixes in this release.  Two-
Dimensional Scattered Light Correction Algorithm for STIS
Echelles  New software and calibration reference files are
available to reprocess STIS echelle spectra using a two-
dimensional iterative deconvolution algorithm that models and
removes scattered light. The algorithm was developed by Chuck
Bowers (Goddard) and Don Lindler (Advanced Computer Concepts),
who helped design and test STIS on the ground. STScI has
implemented the algorithm in software that will likely become pa