DQRID : D170530.2
Start DateStart TimeEnd DateEnd Time Data Quality Metric
10/08/2012000009/26/20132359Suspect
more
Subject:
MAG/SASZE/M1 - solar ephemeris values for solar azimuth and solar zenith angles are 
unreliable
DataStreams:magsaszenirM1.a1, magsaszevisM1.a1, magsaszevisM1.a0, magsaszefilterbandsM1.a1,
magsaszenirM1.a0
Description:
The GPS read by the SASZe was at times incorrectly reporting fixed/constant latitude and 
longitude values which were used by the SASZe software to compute erroneous solar 
ephemeris values. The zenith transmittance is related to the zenith radiance divided by the 
cosine(solar zenith angle).  Erroneous solar ephemeris values for solar zenith angle will 
propagate to the zenith transmittances.
Suggestions: 
Do not use the zenith transmittance values.  If necessary, correct values can be 

computed from the zenith radiance values using the lat and lon reported in the magnav 
datastream.
Measurements:magsaszenirM1.a0:
  • lat
  • lon
more
magsaszefilterbandsM1.a1:
  • zenith_transmittance_673nm
  • zenith_transmittance_650nm
  • zenith_transmittance_1050nm
  • zenith_transmittance_440nm
  • lon
  • zenith_transmittance_1550nm
  • zenith_transmittance_1175nm
  • zenith_transmittance_387nm
  • zenith_transmittance_368nm
  • zenith_transmittance_1440nm
  • lat
  • zenith_transmittance_500nm
  • zenith_transmittance_1020nm
  • zenith_transmittance_408nm
  • zenith_transmittance_940nm
  • zenith_transmittance_615nm
  • zenith_transmittance_1637nm
  • zenith_transmittance_1064nm
  • zenith_transmittance_935nm
  • zenith_transmittance_1125nm
  • zenith_transmittance_910nm
  • zenith_transmittance_976nm
  • zenith_transmittance_975nm
  • zenith_transmittance_1370nm
  • zenith_transmittance_1500nm
  • zenith_transmittance_355nm
  • zenith_transmittance_870nm
  • zenith_transmittance_762nm
  • zenith_transmittance_532nm
  • zenith_transmittance_340nm
  • zenith_transmittance_1030nm
  • zenith_transmittance_415nm
  • zenith_transmittance_1225nm
more
magsaszevisM1.a0:
  • lat
  • lon
more
magsaszevisM1.a1:
  • lat
  • lon
more
magsaszenirM1.a1:
  • lon
  • lat
more

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