DQRID : D090213.2
Start DateStart TimeEnd DateEnd Time
08/18/2008000008/28/20082359
05/09/2008000006/04/20080310
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Subject:
HFE/MWRHF/M1 - Frosting/Condensation
DataStreams:hfemwrhfM1.b1
Description:
The heater module was installed on 6/4/2008. Before this time there is condensation on the 
window during night time and early morning. On 8/18 the heater appears to have failed 
and nighttime condensation re-occurred on the radome during conditions of high humidity.

Users can identify the segments affected by observing a smooth steady increase in the 
brightness temperature (BT). BT values can increase to more than 250 K and then smoothly 
decrease. The RH during these events is usually above 70%. Users should disregard data 
affected by condensation.
Suggestions: 
Measurements:hfemwrhfM1.b1:
  • Sky brightness temperature (150 GHz)(tbsky150)
  • Sky brightness temperature (90 GHz)(tbsky90)
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