Results From The Juno Microwave Radiometer at Jupiter

Abstract:

Juno is a spinning spacecraft in a highly eccentric 53-day polar orbit about Jupiter, with perijoves at about 5000 km above the cloud tops. From this unique vantage point, the Juno Microwave Radiometer (MWR) has measured the radio emission in 6 channels, at wavelengths ranging from 1.4 to 50 cm, with 100 mS sampling throughout each spin of the spacecraft, since the first science pass in August of 2016. This data set covers the Jovian atmosphere over a wide range of latitudes, longitudes and emission angles, and has yielded a number of results, as well as prompting new questions, related to the distribution and concentration of ammonia and water, atmospheric dynamics, lightning, and other aspects of the atmosphere at depths as deep as 100 bars or more. We will present an overview of MWR results to date, incorporating data from 29 perijove passes.