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Space Telescope Imaging Spectrograph
STAN - June 2000

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| HST Spectroscopy                      STIS/GHRS/FOS |
| STScI Analysis Newsletter                  Jun 2000 |
|                                                     |
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STIS CCD Flat Fields and "Dust Motes" 


How do I know that wavecal processing worked correctly? 


STIS Calibration Outsourcing Opportunities for Cycle 10 


CALSTIS 2.6a


CALSTIS 2.6


Release of the Visual Target Tuner

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STIS CCD Flat Fields and "Dust Motes" 

"Dust Motes" in CCD flats get flagged in the data 
quality file as small blemishes. This flag can be 
misleading. Read more.


How do I know that wavecal processing worked correctly? 

Wavelengths in 1-D extracted spectra and 2-D rectified 
images will not be correct unless the offset of the 
Mode Select Mechanism (MSM) in the dispersion direction 
was successfully determined from the wavecal associated 
with the observation. Here are two things which can be 
checked to see whether there was a problem.
  

STIS Calibration Outsourcing Opportunities for Cycle 10 

There is a potential list of project candidates for 
Cycle 10 calibration outsourcing proposals that could be 
submitted in response to the Cycle 10 call for proposals.
 

CALSTIS 2.6a

Calstis version 2.6a was installed in the pipeline on 
May 9, 2000 and is also being used by OTFC. Calstis 2.6a 
will be available for download in a soon to be released 
version of STSDAS. There were two bugs corrected in this 
version. 
 

CALSTIS 2.6

Calstis version 2.6 was installed on Feb 14, 2000.
Changes to CALSTIS in this version include a number of 
bug fixes, enhancements, and a number of new user tools 
and scripts.


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Release of the Visual Target Tuner

With the June Call for Proposals, STScI will release a 
prototype software tool called the Visual Target Tuner 
(VTT). This tool displays HST apertures superimposed on 
sky images. The VTT provides capabilities to import sky 
images, display primary and parallel apertures, rotate 
apertures, centroid objects, specify excluded points and 
regions, experiment with various orientations, and 
display catalog overlays and object information.  

List of Recent Preprints Now on Line
    
 The list of preprints based on HST spectrographs data
 that user to occupy this space is now available at 
 http://www.stsci.edu/science/preprints/ for easy browsing.
    
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