DQRID : D150128.1
Start DateStart TimeEnd DateEnd Time Data Quality Metric
01/04/2015155901/27/20152020Incorrect
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Subject:
SGP/SIRS/C1 - Instrument
DataStreams:sgpsirsC1.b1, sgpsirs20sC1.a0
Description:
Short_direct_normal instrument not operating correctly during the affected time period.
Suggestions: 
The short_direct_normal data are incorrect. The short_direct_normal data can be 

derived from the global hemispheric and global diffuse data using the following relationship: 
short_direct_normal (derived) = (down_short_hemisp - 
down_short_diffuse_hemisp)/cos(zenith angle).
Measurements:sgpsirsC1.b1:
  • short_direct_normal_std
  • short_direct_normal_max
  • short_direct_normal_min
  • short_direct_normal
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sgpsirs20sC1.a0:
  • inst_direct_normal
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