DQRID : D091010.1
Start DateStart TimeEnd DateEnd Time
08/23/2009120010/31/20092000
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Subject:
SGP/NIMFR/C1 - Noise in 500nm channel
DataStreams:sgpnimfrC1.b1, sgpnimfrlangplotC1.c1, sgpnimfrC1.a0, sgpnimfrlangleyC1.c1
Description:
The 500nm channel data were noisy at times, and at other times output "steps down" a 
notch.  On 10/14, maintenance was performed to re-seat connection. On 10/31, the noise 
returned briefly, so the end-date has been extended through that date.
Suggestions: 
Measurements:sgpnimfrlangleyC1.c1:
  • optical depth for the Direct Narrowband Filter2(barnard_optical_depth_filter2)
  • percentage of initial points used in final linear fit for the Direct Narrowband
    Filter2(barnard_good_fraction_filter2)
  • number of points used in final linear fit for the Direct Narrowband Filter2(barnard_number_points_filter2)
  • error in optical depth (slope) of final linear fit for the Direct Narrowband
    Filter2(barnard_error_slope_filter2)
  • rejection flag for Direct Narrowband Filter2(barnard_badflag_filter2)
  • error in final linear fit for the Direct Narrowband Filter2(barnard_error_fit_filter2)
more
sgpnimfrC1.a0:
  • Direct normal narrowband irradiance, filter 2(direct_normal_narrowband_filter2_raw)
  • Direct normal narrowband irradiance, filter 2, offset corrected(direct_normal_narrowband_filter2)
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sgpnimfrC1.b1:
  • Narrowband Direct Horizontal Irradiance, Filter 2, cosine corrected(direct_horizontal_narrowband_filter2)
  • -180.0 - +180.0(alt)
  • Direct normal narrowband irradiance, filter 2, offset corrected(direct_normal_narrowband_filter2)
more
sgpnimfrlangplotC1.c1:
  • log(irradiance) for the Direct Narrowband Filter2, Barnard(barnard_lnI_filter2)
  • rejected points for the final fit for the Direct Narrowband Filter2(barnard_rejected_filter2)
  • rejected points for the final fit for the Direct Narrowband Filter2(michalsky_rejected_filter2)
  • log(irradiance) for the Direct Narrowband Filter2, Michalsky(michalsky_lnI_filter2)
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