NSA/MWRP/C1 - V-band noise diode failure

The V-band noise diode is showing signs of instability. Starting about August 5 the 
comparison of brightness temperatures with model showed an increased divergence resulting from 
a downward trend in the brightness temperatures of frequencies > 50 GHz.

Disregard brightness temperatures and retrieved products associated with the V-band 
channels. These include all profiles. Integrated water vapor and liquid water path are not 
affected.

• Derived relative humidity(relativeHumidity)
• Lifting condensation level(liftingCondensationLevel)
• Interpolated water vapor mixing ratio(waterVaporMixingRatio)
• Derived virtual temperature(virtualTemperature)
• Microwave brightness temperature(brightnessTemperature)
• Interpolated dewpoint temperature(dewpointTemperature)
• Level of free convection(levelFreeConvection)
• Retrieved water vapor density(waterVaporDensity)
• Level of free convection pressure(levelFreeConvectionPres)
• Lifting condensation level pressure(liftingCondensationLevelPres)
• Temperature used for calculation(temperature)