STSDAS: Sp
ace Telescope
Science Data Analysis System
STSDAS is the software for reducing and analyzing data from the Hubble Space Telescope. The STSDAS software development group also produces and supports other software products such as the TABLES package for handling tabular-format data and IGI for the production of publication quality graphics in the IRAF environment.


                      STSDAS v2.2 RELEASE SUMMARY
 


The primary changes incorporated in this release are:

1) An updated DITHER package which includes many new and updated
   tasks to make it easier to use with other instruments and give better
   results.
2) An updated NICMOS package which includes some new tasks and many
   improved versions of recently added tasks.
3) New tasks to splice spectra (HST_CALIB.CTOOLS/SPLICE, 
   FWEIGHT, SFLUX, and PWEIGHT).
4) A new version of CALSTIS (v2.7) which includes a number of changes
   to processing algorithms and bug fixes.
5) New and updated SYNPHOT tasks.
6) The task NEWREDSHIFT was moved to TOOLBOX.TOOLS from SOBSOLETE at a 
   user's request.
7) Updates to the CVOS and HSTIO libraries.



The following task has been moved from analysis.dither to sobsolete:

analysis.dither -> sobsolete.oldither


Packages or tasks that have seen significant changes include:

analysis.dither
hst_calib.nicmos
hst_calib.paperprod
hst_calib.stis.calstis


Packages or tasks that have had minor enhancements or bug fixes include:

analysis.fitting
        .gasp.stgindx
             .xyeq
        .isophote.bmodel
                 .isomap
                 .ellipse
contrib.gaussfit
       .spfitpkg.specfit
graphics.sdisplay.compass
        .stplot.igi
hst_calib.ctools.ckwstis
                .mkmultispec
                .resample
                .tomultispec
         .fos.bspec 
             .yfluxcal 
         .stis.inttag
              .mkfringeflat
              .normspflat
              .ocrreject
              .prepspec
              .tastis
              .wavecal
              .x1d
         .synphot.bandpar
                 .obsmode
                 .plspec
                 .pltrans
         .wfpc.uchcoord
              .warmpix
playpen.hsubtract
toolbox.headers.upreffile
       .imgtools.addmasks
                .boxinterp
                .gcopy
                .imcalc
                .mstools.msarith
                        .mscombine
                        .mscopy


Parameter files that have changed (new parameters or new default values
excluding changes to version or related parameters, or changes to
parameter comments):

analysis.isophote/magpar.par		- 'refer' default changed
graphics.sdisplay/compass.par		- 'angle' default changed
hst_calib.ctools/ckwstis2.par		- added 'wcptab'
                /ckwstis4.par		- added 'wcptab'
hst_calib.paperprod/upp_image		- added 'page'
                   /xpp_image		- added 'page'
                   /upp_obsum		- added 'page'
                   /xpp_obsum		- added 'page'
hst_calib.stis/tastis.par		- 'input' default changed
					- added 'acq_success'
hst_calib.synphot/refdata.par		- 'grtbl' and 'cmptbl' default changed
hst_calib.wfpc/t_metric.par		- 'cursor' changed