DQRID : D060420.9
Start DateStart TimeEnd DateEnd Time
TWP/MWR/C1 - software upgrade (version 3.29)
The MWR operating program was upgraded to version 3.29 on 15 March 1999. This version 
included a beam width correction as well as provided the capability to automatically level 
the elevation mirror (that is, to automatically detect and correct offsets in the elevation 
angle stepper motor position.)
The improvement in the quality of the tip curves resulting from the auto-leveling has been 
dramatic: differences in the brightness temperatures at 3 airmasses (19.5 and 160.5 
degrees) have been reduced from +/- 5 K to +/- 0.5 K. In order to take full advantage of this 
improvement to detect and reject cloudy tip curves, the minimum value of the 
goodness-of-fit coefficient for a valid tip curve has been increased from 0.995 to 0.998.
  • Mean 31.4 GHz sky brightness temperature(tbsky31)
  • Total water vapor along LOS path(vap)
  • Averaged total liquid water along LOS path(liq)
  • Mean 23.8 GHz sky brightness temperature(tbsky23)

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