DQRID : D120416.8
Start DateStart TimeEnd DateEnd Time
05/20/2009164912/04/20092215
more
Subject:
SGP/QCRAD/E27 - Tracker failure
DataStreams:sgpqcrad1longE27.c2, sgpqcrad1longE27.s2, sgpqcrad1longE27.c1, sgpqcrad1longE27.s1
Description:
Possible main power problem made may have caused the tracker to fail.  Attempts to restart 
the old tracker, subsequent replacement and lack of spares contributed to incorrect data 
from the NIP (short_direct_normal datastream) and 8-48 (down_short_diffuse_hemisp 
datastream) until the time of site decommissioning.  

This facility was decommissioned and maintenance efforts ceased 10/1/2009. The instrument 
was removed from service 12/04/2009.

Documented in instrument DQR D090609.1
Suggestions: 
null
Measurements:sgpqcrad1longE27.s2:
  • Shortwave direct normal irradiance, pyrheliometer(short_direct_normal)
  • Downwelling longwave hemispheric irradiance, pyrgeometer(down_long_hemisp)
  • Quality check results on field: Best Estimate Global Downwelling Shortwave
    Hemispheric Irradiance(BestEstimate_down_short_hemisp)
more
sgpqcrad1longE27.c2:
  • Quality check results on field: Best Estimate Global Downwelling Shortwave
    Hemispheric Irradiance(BestEstimate_down_short_hemisp)
  • Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer(down_short_diffuse_hemisp)
  • Shortwave direct normal irradiance, pyrheliometer(short_direct_normal)
more
sgpqcrad1longE27.s1:
  • Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer(down_short_diffuse_hemisp)
  • Quality check results on field: Best Estimate Global Downwelling Shortwave
    Hemispheric Irradiance(BestEstimate_down_short_hemisp)
  • Shortwave direct normal irradiance, pyrheliometer(short_direct_normal)
more
sgpqcrad1longE27.c1:
  • Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer(down_short_diffuse_hemisp)
  • Quality check results on field: Best Estimate Global Downwelling Shortwave
    Hemispheric Irradiance(BestEstimate_down_short_hemisp)
  • Shortwave direct normal irradiance, pyrheliometer(short_direct_normal)
more

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