Data Quality Reports for Session: 138731 User: dmfoper Completed: 11/15/2011

TABLE OF CONTENTS

DQR IDSubjectData Streams Affected
D101122.1SGP/QCRAD/E1/E18/E2/E22/E24/E3/E5/E8 - error in qc flagssgpqcrad1longE1.c1, sgpqcrad1longE2.c1, sgpqcrad1longE3.c1, sgpqcrad1longE5.c1,
sgpqcrad1longE8.c1, sgpqcrad1longE18.c1, sgpqcrad1longE22.c1, sgpqcrad1longE24.c1


DQRID : D101122.1
Start DateStart TimeEnd DateEnd Time
06/20/1996000010/13/20092359
Subject:
SGP/QCRAD/E1/E18/E2/E22/E24/E3/E5/E8  - error in qc flags
DataStreams:sgpqcrad1longE1.c1, sgpqcrad1longE2.c1, sgpqcrad1longE3.c1, sgpqcrad1longE5.c1,
sgpqcrad1longE8.c1, sgpqcrad1longE18.c1, sgpqcrad1longE22.c1, sgpqcrad1longE24.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)". 

These problems impact all dates and times in which a solar tracker failure occurred at 
each facility.  The DQR system can not link multiple start/end date/times with multiple 
facilities within the same report.  As a result, the latest valid start date and earliest 
valid end date for these facilities were chosen. The actual valid dates at each facility are 
as follows:

E1:  19951115-20091013
E2:  19960307-20091019  
E3:  19960306-20091027
E5:  19960614-20091101
E8:  19950922-20091109
E18:  19960620-20091116
E22:  19950316-20091130
E24:  19951107-20091113
Measurements:sgpqcrad1longE24.c1:
  • Radiation, shortwave, downwelling diffuse hemispheric irradiance, 1-min avg(down_short_diffuse_hemisp)
  • Radiation, shortwave, direct normal irradiance, 1-min avg(short_direct_normal)
sgpqcrad1longE1.c1:
  • Radiation, shortwave, downwelling diffuse hemispheric irradiance, 1-min avg(down_short_diffuse_hemisp)
  • Radiation, shortwave, direct normal irradiance, 1-min avg(short_direct_normal)
sgpqcrad1longE22.c1:
  • Radiation, shortwave, direct normal irradiance, 1-min avg(short_direct_normal)
  • Radiation, shortwave, downwelling diffuse hemispheric irradiance, 1-min avg(down_short_diffuse_hemisp)
sgpqcrad1longE5.c1:
  • Radiation, shortwave, direct normal irradiance, 1-min avg(short_direct_normal)
  • Radiation, shortwave, downwelling diffuse hemispheric irradiance, 1-min avg(down_short_diffuse_hemisp)
sgpqcrad1longE2.c1:
  • Radiation, shortwave, direct normal irradiance, 1-min avg(short_direct_normal)
  • Radiation, shortwave, downwelling diffuse hemispheric irradiance, 1-min avg(down_short_diffuse_hemisp)
sgpqcrad1longE3.c1:
  • Radiation, shortwave, downwelling diffuse hemispheric irradiance, 1-min avg(down_short_diffuse_hemisp)
  • Radiation, shortwave, direct normal irradiance, 1-min avg(short_direct_normal)
sgpqcrad1longE18.c1:
  • Radiation, shortwave, direct normal irradiance, 1-min avg(short_direct_normal)
  • Radiation, shortwave, downwelling diffuse hemispheric irradiance, 1-min avg(down_short_diffuse_hemisp)
sgpqcrad1longE8.c1:
  • Radiation, shortwave, direct normal irradiance, 1-min avg(short_direct_normal)
  • Radiation, shortwave, downwelling diffuse hemispheric irradiance, 1-min avg(down_short_diffuse_hemisp)

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