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VST Data Processing

VST data processing status:

    • Commissioning (16 Aug 2011 - 14 Oct 2011)
    • P88 (15 Oct 2011 - 31 Mar 2012)
    • P89 (1 Apr 2012 - 30 Sep 2012)
    • P90 (1 Oct 2012 - 31 Mar 2013)
    • P91 (1 Apr 2013 - 30 Sep 2013)
    • P92 (1 Oct 2013 - 31 Mar 2014)
    • P93 (1 Apr 2014 - 30 Sep 2014)

 

Rice image compression
CASU is using lossless Rice tile compression to store both the raw and reduced data. Rice compression is supported by CFITSIO and by DS9 (starting from version 5). You can use funpack to uncompress the images.

Astrometry
VST has  very low astrometric field distortion hence CASU is using a Tangent Plane projection (TAN) to encode the WCS astrometric calibration in the FITS headers.