DQRID : D030722.2
Start DateStart TimeEnd DateEnd Time Data Quality Metric
07/17/2003100008/06/20031350Incorrect
more
Subject:
SGP/SIRS/E21 - Shadowband Misalignment
DataStreams:sgpsirsE21.00, sgpsirsE21.b1, sgpsirs20sE21.a0
Description:
Solar tracker stopped functioning on 7/17. Tracker power cycled on 
              07/24 and returned to normal tracking but failed again 7/25.  Power
              was cycled again 8/6 and tracker performance was sustained thereafter.
Suggestions: 
Affected downwelling diffuse (DD) and direct normal (NIP) data is not   recoverable.  

Downwelling IR (DIR) data should be used with the knowledge that the pyrgeometer is not 
shaded during this period.
Measurements:sgpsirs20sE21.a0:
  • inst_down_long_hemisp_shaded_tp
  • inst_diffuse
  • inst_direct_normal
more
sgpsirsE21.00:
  • Raw data stream - documentation not supported
more
sgpsirsE21.b1:
  • down_short_diffuse_hemisp_max
  • short_direct_normal
  • down_short_diffuse_hemisp
  • down_long_hemisp_shaded_std
  • down_long_hemisp_shaded_max
  • down_short_diffuse_hemisp_std
  • short_direct_normal_min
  • down_long_netir
  • down_long_hemisp_shaded_min
  • short_direct_normal_std
  • short_direct_normal_max
  • down_long_hemisp_shaded
  • down_short_diffuse_hemisp_min
more

Close this window