DQRID : D020827.1
Start DateStart TimeEnd DateEnd Time Data Quality Metric
04/01/2001000011/29/20012359Suspect
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Subject:
SGP/NIMFR/C1 - Centrovision filter leakage
DataStreams:sgpnimfrC1.b1
Description:
Testing of the batch of centrovision filters being used in the instrument indicate that 
the first four filters leak 'out of band' light. The leakage for each filter is (1)415nm 
3%, (2)500nm 1-2%, (3)615nm 1-2%, (4)673nm 3%. Acceptable leakage is less than 0.5%.

This leakage causes an error in the irradiance values (too high) at these four wavelengths 
and the optical depths calculated using this data will be too high.
Suggestions: 
Do not use data
Measurements:sgpnimfrC1.b1:
  • normalized_transmittance_filter4
  • normalized_transmittance_filter3
  • normalized_transmittance_filter2
  • normalized_transmittance_filter1
  • direct_horizontal_narrowband_filter1
  • direct_horizontal_narrowband_filter2
  • direct_horizontal_narrowband_filter3
  • direct_horizontal_narrowband_filter4
  • direct_normal_narrowband_filter1
  • direct_normal_narrowband_filter3
  • direct_normal_narrowband_filter2
  • direct_normal_narrowband_filter4
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