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Hubble Space Telescope
December 2013 STAN

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| STScI Analysis Newsletter (STAN) 
| Cosmic Origins Spectrograph (COS)
| Space Telescope Imaging Spectrograph (STIS)
|December 2013
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In this Newsletter we provide some updates of interest to 
COS users.

Contents:



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Changes to the STIS Calibration Pipeline in HST MAST Archive

New STIS calibration software has been installed in the 
HST MAST archive pipeline. The STIS team also delivered a 
new dark correction table for data taken with the NUV-MAMA 
detector which provides a better time and temperature 
characterization for observations made after servicing 
mission 4. 

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Updates to the COS/FUV Calibration

This article describes updates to three reference files which 
improve the flux-calibration and flat-fielding of all COS/FUV 
modes and significantly improve the wavelength solution of 
the G140L/1280/FUVB mode. These reference files should 
all be used simultaneously to calibrate COS/FUV data. Data 
calibrated with the most up-to-date reference files can be 
retrieved from the HST MAST archive at STScI.

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