In search of water vapor on Jupiter: Laboratory measurements of the microwave properties of water vapor under simulated jovian conditions

► Water vapor opacity in the 5-21 cm wavelength range 1.4-6 GHz. ► Pressure/temperature ranges 0.030-101 bars/330-525 K. ► Reduce uncertainties in the retrieval of jovian atmospheric water vapor abundances from Juno MWR. ► Understand the role water vapor may play in the decimeter-wavelength spectrum of Saturn.