You are here: Home / Surveys & Projects / VISTA / Data Processing

VISTA Data Processing

The latest version of released VISTA data products is v1.5  - see the version log for further details regarding changes.

VISTA reduction progress for each ESO Period:

  • Commissioning (Sep. 2008 - 14th Oct 2009)
  • Science Verification (15th Oct 2009 - 14th Feb 2010)
  • P85 (15th Feb 2010 - 30th Sep 2010)
  • P86 (1st Oct 2010 - 31st Mar 2011)
  • P87 (1st Apr 2011 - 30th Sep 2011)
  • P88 (1st Oct 2011 - 31st Mar 2012)
  • P89 (1st Apr 2012 - 30th Sep 2012)
  • P90 (1st Oct 2012 - 31st Mar 2013)
  • P91 (1st Apr 2013 - 30th Sep 2013)
  • P92 (1st Oct 2013 - 31st Mar 2014)
  • P93 (1st Apr 2014 - 30th Sep 2014)
  • P94 (1st Oct 2014 - 31st Mar 2015)
  • P95 (1st Apr 2015 - 30th Sep 2015)
  • P96 (1st Oct 2015 - 31st Mar 2016)
  • P97 (1st Apr 2016 - 30th Sep 2016)
  • P98 (1st Oct 2016 - 31st Mar 2017)
  • P99 (1st Apr 2017 - 30th Sep 2017)
  • P100 (1st Oct 2017 - 31st Mar 2018)
  • P101 (1st Apr 2018 - 30th Sep 2018)
  • P102 (1st Oct 2018 - 31st Mar 2019)
  • P103 (1st Apr 2019 - 30th Sep 2019)
  • P104 (1st Oct 2019 - 31st Mar 2020)
  • P105 (1st Apr 2020 - 30th Sep 2020)
  • P106 (1st Oct 2020 - 31st Mar 2021)
  • P107 (1st Apr 2021 - 30th Sep 2021)
  • P108 (1st Oct 2021 - 31st Mar 2022)
  • P109 (1st Apr 2022 - 30th Sep 2022)
  • P110 (1st Oct 2022 - 31st Mar 2023)
 
For additional information on VISTA please refer to the official web site.

GENERAL INFORMATION ABOUT VISTA DATA PRODUCTS

Rice image compression

CASU is using the Rice lossless 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

CASU is using the Zenithal Polynomial projection (ZPN) to encode the astrometric calibration in the FITS headers. Although ZPN is part of the FITS standard for WCS encoding, it is not supported by old IRAF versions. ZPN is instead correctly understood by other software packages like DS9 and Gaia. For more information on how to fix this problem, see the IRAF ZPN Patch document. If you use Terapix software (e.g., SExtractor or Swarp), check out the Terapix Software ZPN howto document to learn about ZPN-related issues.