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Data Quality Flagging S5 Elog Entries. Tiffany Summerscales Andrews University. Issue: Important DQ Information in Elogs. Elogs - Electronic logs for both Livingston and Hanford sites Record of observations made of environmental and detector issues that could affect data quality

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Data Quality Flagging S5 Elog Entries

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Data Quality FlaggingS5 Elog Entries

Tiffany Summerscales

Andrews University

March 2007 LSC/VIRGO - Detchar


Issue: Important DQ Information in Elogs

  • Elogs - Electronic logs for both Livingston and Hanford sites

  • Record of observations made of environmental and detector issues that could affect data quality

  • Need a list of “flags” based on these observations

    • Date of observation may not be the same as data affected

    • Computer-readable list

March 2007 LSC/VIRGO - Detchar


Work Done So Far

  • Webpage http://www.andrews.edu/~tzs/detchar

  • Two Andrews undergraduates - Nick Valles and Jon Van Ornam started listing DQ flags

    • ~ 2 months at each site

March 2007 LSC/VIRGO - Detchar


Work Done So Far

March 2007 LSC/VIRGO - Detchar


Work Needed

  • Fill in the rest of the webpages!

    • Translate elog observations to data quality flags

    • Record start & stop times, segments affected, etc

  • Call for volunteers

March 2007 LSC/VIRGO - Detchar


Ideas for Improvements

  • Increase automation for generating web pages

  • Switch computer-readable format to ilwd

    • ilwd - xml with certain headers

    • ilwdread - MATLAB function in Ligotools

    • ilwdwrite - MATLAB function to write ilwd

  • Any suggestions?

March 2007 LSC/VIRGO - Detchar


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