DQRID : D051102.2
Start DateStart TimeEnd DateEnd Time Data Quality Metric
11/04/2004000008/27/20050450Suspect
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Subject:
NSA/GNDRAD/C1 - PIR measurement
DataStreams:nsagndrad20sC1.a0
Description:
Fan on PIR failed sometime during this period.  Looking at QC plots does not seem to 
indicate an actual time of failure.  Near beginning of period, deltas from comparison to IRT 
are lower, and larger later, possibly indicating failure sometime in here, but there are 
no definates. CM/PM  reports do not indicate status of fan so this is a broad range.
Suggestions: 
Use DQ site to look at comparison to IRT, if widely different, may indicate frost on 

dome of PIR possibly, making data incorrect.
Measurements:nsagndrad20sC1.a0:
  • inst_up_long_hemisp_tp
  • inst_up_long_case_resist
  • inst_up_long_dome_resist
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