DQRID : D080604.4
Start DateStart TimeEnd DateEnd Time
04/08/2008063004/17/20081600
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Subject:
SGP/SIRS/E6 - Tracker Failure
DataStreams:sgpsirsE6.b1, sgpsirs20sE6.a0
Description:
Tracker was non-operational in parked position until being reset on 4/17.  The tracker 
instrument data (short_direct_normal and down_short_diffuse_hemisp) are bad during this time.
Suggestions: 
Measurements:sgpsirsE6.b1:
  • Downwelling Shortwave Diffuse Hemispheric Irradiance, Pyrgeometer, Minima(down_short_diffuse_hemisp_min)
  • Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer(down_short_diffuse_hemisp)
  • Downwelling Shortwave Diffuse Hemispheric Irradiance, Pyranometer, Standard
    Deviation(down_short_diffuse_hemisp_std)
  • Downwelling shortwave diffuse hemispheric irradiance, pyranometer, maxima(down_short_diffuse_hemisp_max)
  • Shortwave Direct Normal Irradiance, Pyrgeometer, Standard Deviation(short_direct_normal_std)
  • Shortwave direct normal irradiance, pyrheliometer, minima(short_direct_normal_min)
  • Shortwave direct normal irradiance, pyrheliometer(short_direct_normal)
  • Shortwave Direct Normal Irradiance, Pyrheliometer, Maxima(short_direct_normal_max)
more
sgpsirs20sE6.a0:
  • Instantaneous direct normal shortwave irradiance, pyrheliometer thermopile
    voltage(inst_direct_normal)
  • Instantaneous Downwelling Hemispheric Shortwave, Pyranometer Thermopile Voltage(inst_global)
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