DQRID : D050809.1
Start DateStart TimeEnd DateEnd Time Data Quality Metric
08/07/2005012509/21/20051600Incorrect
more
Subject:
SGP/MFRSR/E4 - Erratic head temp and missing irradiance data
DataStreams:sgpmfrsrE4.b1, sgpmfrsrE4.a0, sgpmfrsrE4.00
Description:
This problem started out with erratic/low head temperature, and expanded to include 
missing irradiance data.  Maintenance on 8/24 had the unexpected result of causing channels 870 
and 940 to flat line.  The 8/24 maintenance did not fix the head temp problem.  On 9/21 
maintenance fixed the temp and irradiance issue.

Notwithstanding the low head temps, the irradiance data (when available) look OK.  
However, because the instrument is calibrated and designed to run with temps around 40, be 
cautious about using data covered by this DQR.
Suggestions: 
Measurements:sgpmfrsrE4.a0:
  • hemisp_narrowband_filter6_raw
  • diffuse_hemisp_narrowband_filter6_raw
  • direct_horizontal_narrowband_filter5
  • direct_horizontal_narrowband_filter6
  • head_temp
  • diffuse_hemisp_narrowband_filter6
  • diffuse_hemisp_narrowband_filter5
  • hemisp_narrowband_filter5
  • diffuse_hemisp_narrowband_filter5_raw
  • hemisp_narrowband_filter5_raw
  • hemisp_narrowband_filter6
more
sgpmfrsrE4.b1:
  • direct_normal_narrowband_filter6
  • direct_normal_narrowband_filter5
  • diffuse_hemisp_narrowband_filter6
  • diffuse_hemisp_narrowband_filter5
  • direct_horizontal_narrowband_filter6
  • direct_horizontal_narrowband_filter5
  • head_temp
  • hemisp_narrowband_filter6
  • hemisp_narrowband_filter5
more
sgpmfrsrE4.00:
  • Raw data stream - documentation not supported
more

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