Studying and Understanding the Jovian Aurora Based on Measurements from the Juno MWR Taken during Perijove 5

During Perijove 5 (March 27, 2017), an anomolous signal level was detected by the Juno Microwave Radiometer (MWR) at latitudes north of 50N. This anomaly presented itself in two distinct ways. At the three longest wavelength channels (11.55, 24, 50 cm), a decrease in brightness temperatures at latitudes between 50N-60N was measured. At the longest wavelength channel (50 cm) this decrease is followed by an increase in brightness temperature at higher latitudes. These anomalous brightness temperatures are examined and attributed to Juno MWR flying over and measuring effects from the Jovian aurora. Presented here are the basics of the radiative transfer model needed to properly understand, explain, and model this anomoly. This work was supported by NASA Contract NNM06AA75C from the Marshall Space Flight Center supporting the Juno Mission Science team, under Subcontract 699054X from the Southwest Research Institute.