DQRID : D001115.1
Start DateStart TimeEnd DateEnd Time Data Quality Metric
02/27/2000000006/07/20002359Suspect
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Subject:
SGP/MWR/B1 - occasional negative brightness temperatures
DataStreams:sgpmwrlosB1.a1, sgpmwrtipB1.00, sgpmwrlosB1.b1, sgpmwrtipB1.a1, sgpmwrlosB1.00
Description:
Occasional spikes in the MWR data were observed. Inspection of
the data indicates that these are due to spikes in the gain that result from
either unrealistically low values of the blackbody target temperature (~150 K) or
unrealistically low values of the microwave signal counts when viewing the
blackbody target. Unrealistically low values of the mixer temperature have also been
observed.
Suggestions: 
The problem appears to have resolved itself.
Measurements:sgpmwrlosB1.a1:
  • 31tbsky
  • 23tbsky
  • vap
  • liq
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sgpmwrlosB1.00:
  • Raw data stream - documentation not supported
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sgpmwrtipB1.a1:
  • tipsky31
  • tipsky23
  • tkxc
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sgpmwrlosB1.b1:
  • tbsky31
  • liq
  • tbsky23
  • vap
more
sgpmwrtipB1.00:
  • Raw data stream - documentation not supported
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