Data Quality Reports for Session: 120942 User: vghate Completed: 07/22/2009

TABLE OF CONTENTS

DQR IDSubjectData Streams Affected
D090509.1GRW/SKYRAD/M1 - Tracker inoperativegrwskyrad20sM1.a0, grwskyrad60sM1.b1


DQRID : D090509.1
Start DateStart TimeEnd DateEnd Time
05/08/2009140705/11/20090815
Subject:
GRW/SKYRAD/M1 - Tracker inoperative
DataStreams:grwskyrad20sM1.a0, grwskyrad60sM1.b1
Description:
The solar tracker arms were caught and pulled way out of alignment. Problem corrected by 
OPs at 0815Z May 11th.  All bolts tightened and alignment and tracking checked. 

Down_short_hemisp_diffuse (8-48 instrument)is incorrect and not recoverable. 
short_direct_normal (NIP instrument) is suspect during this time as well.  down_short_hemisp (PSP 
instrument) was unaffected.
Measurements:grwskyrad60sM1.b1:
  • Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer,
    Minima(down_short_diffuse_hemisp_min)
  • Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer,
    Maxima(down_short_diffuse_hemisp_max)
  • Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer(down_short_diffuse_hemisp)
  • Shortwave Direct Normal Irradiance, Pyrgeometer, Minima(short_direct_normal_min)
  • Shortwave Direct Normal Irradiance, Pyrgeometer, Maxima(short_direct_normal_max)
  • Downwelling Shortwave Hemispheric Irradiance, Pyranometer, Standard Deviation(down_short_diffuse_hemisp_std)
  • Shortwave Direct Normal Irradiance, Pyrgeometer(short_direct_normal)
  • Shortwave Direct Normal Irradiance, Pyrgeometer, Standard Deviation(short_direct_normal_std)
grwskyrad20sM1.a0:
  • Instantaneous Direct Normal Shortwave Irradiance, Pyheliometer Thermopile
    Voltage(inst_direct_normal)
  • Instantaneous Uncorrected Downwelling Shortwave Diffuse, Shaded Pyranometer
    Thermopile Voltage(inst_diffuse)

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