Data Quality Reports for Session: 139134 User: rotem1bar1 Completed: 12/06/2011

TABLE OF CONTENTS

DQR IDSubjectData Streams Affected
D110628.2SGP/SIRS/C1 - NIP failuresgpsirsC1.b1, sgpsirs20sC1.a0
D110811.1SGP/BRS/C1 - SW Direct Normal incorrectsgpbrsC1.b1, sgpbrs20sC1.a0
D110902.4SGP/BRS/C1 - Tracker failuresgpbrsC1.b1, sgpbrs20sC1.a0
D111202.1SGP/SIRS/C1 - NIP FailuresgpsirsC1.b1, sgpsirs20sC1.a0


DQRID : D110628.2
Start DateStart TimeEnd DateEnd Time
06/12/2011000006/24/20111740
Subject:
SGP/SIRS/C1 - NIP failure
DataStreams:sgpsirsC1.b1, sgpsirs20sC1.a0
Description:
The short_direct_normal (NIP instrument) cable failed during this time period.	Data are 
not recoverable.

Users can derive an estimate of direct normal values using the following formula:
short_direct_normal = (down_short_hemisp - down_short_diffuse_hemisp)/cos(zenith angle)
Measurements:sgpsirs20sC1.a0:
  • inst_direct_normal
sgpsirsC1.b1:
  • Radiation, shortwave, direct normal irradiance, 1-min avg(short_direct_normal)
  • short_direct_normal_std
  • Shortwave Direct Normal Irradiance, Pyrheliometer, Maxima(short_direct_normal_max)
  • Shortwave Direct Normal Irradiance, Pyrheliometer, Minima(short_direct_normal_min)

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DQRID : D110811.1
Start DateStart TimeEnd DateEnd Time
06/12/2011000006/14/20111750
Subject:
SGP/BRS/C1 - SW Direct Normal incorrect
DataStreams:sgpbrsC1.b1, sgpbrs20sC1.a0
Description:
Apparent lightning strike in the instrument cluster area resulted in a failed NIP. Data 
are missing or incorrect.  

The SIRS was due for calibration change outs so the US, DS, DD and NIP were replaced. The 
updated program was loaded at approximately 06/14/2011 1739 GMT.

An estimate of direct normal values can be derived using the following formula:

short_direct_normal = (down_short_hemisp - down_short_diffuse_hemisp)/cos(zenith angle)
Measurements:sgpbrsC1.b1:
  • Radiation, shortwave, direct normal irradiance, 1-min avg(short_direct_normal)
  • Shortwave Direct Normal Irradiance, Pyrheliometer, Minima(short_direct_normal_min)
  • short_direct_normal_std
  • Shortwave Direct Normal Irradiance, Pyrheliometer, Maxima(short_direct_normal_max)
sgpbrs20sC1.a0:
  • inst_direct_normal

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DQRID : D110902.4
Start DateStart TimeEnd DateEnd Time
06/12/2011000006/13/20111610
Subject:
SGP/BRS/C1 - Tracker failure
DataStreams:sgpbrsC1.b1, sgpbrs20sC1.a0
Description:
Apparent lightning strike in the instrument cluster area resulted in a failed tracker. 
Site ops found the suntracker at home position, power cycled the suntracker and replaced 
fuse.
Measurements:sgpbrsC1.b1:
  • down_short_diffuse_hemisp_std
  • Downwelling Shortwave Diffuse Hemisp. Irrad., Ventilated Pyranometer, Maxima(down_short_diffuse_hemisp_max)
  • Downwelling Shortwave Diffuse Hemisp. Irrad., Ventilated Pyranometer, Minima(down_short_diffuse_hemisp_min)
  • Radiation, shortwave, downwelling diffuse hemispheric irradiance, 1-min avg(down_short_diffuse_hemisp)
sgpbrs20sC1.a0:
  • inst_diffuse

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DQRID : D111202.1
Start DateStart TimeEnd DateEnd Time
08/16/2011214408/25/20111435
Subject:
SGP/SIRS/C1 - NIP Failure
DataStreams:sgpsirsC1.b1, sgpsirs20sC1.a0
Description:
The short_direct_normal (NIP instrument) cable failed (broken wire in NIP connector) 
during this time period. Data are not recoverable.
Measurements:sgpsirs20sC1.a0:
  • inst_direct_normal
sgpsirsC1.b1:
  • Radiation, shortwave, direct normal irradiance, 1-min avg(short_direct_normal)
  • short_direct_normal_std
  • Shortwave Direct Normal Irradiance, Pyrheliometer, Maxima(short_direct_normal_max)
  • Shortwave Direct Normal Irradiance, Pyrheliometer, Minima(short_direct_normal_min)

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