DQRID : D101122.2
Start DateStart TimeEnd DateEnd Time
04/01/2007000001/01/20082359
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Subject:
FKB/QCRAD/M1  - Error in qc flags
DataStreams:fkbqcrad1longM1.c1
Description:
In the qc_down_short_diffuse_hemisp field, QC failures from the test indicated by
    bit_13: "data failed tracker off test"
were set incorrectly as
    bit_9: "GSW2SumSW (93 > SZA > 75 and SumSW > 50; GSW/SumSW < 0.85 or GSW/SumSW > 
1.15)". 

In the qc_short_direct_normal field, QC failures from the test indicated by
    bit_10: "data failed tracker off test"
were set incorrectly as 
    bit_9: "GSW2SumSW (93 > SZA > 75 and SumSW > 50; GSW/ SumSW < 0.85 or GSW/SumSW > 
1.15)". 

This problem impacts all dates and times in which a solar tracker failure occurred at this 
facility.
Suggestions: 
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Measurements:fkbqcrad1longM1.c1:
  • Shortwave direct normal irradiance, pyrheliometer(short_direct_normal)
  • Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer(down_short_diffuse_hemisp)
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