The Juno spacecraft soon observed storms for Jupiter and “heard” the moon of Jupiter Ganymede – listen to the dramatic flight near the ice moon

A dramatic ride with an audio strip collected during a flight near Ganymede on a justice mission – one of the highlights that mission scientists shared in a review at the fall meeting of the American Geophysical Association

This image of JunoCam shows two of Jupiter’s large revolving storms, taken in Juno’s 38th cross at Jupiter’s Preface, on November 29, 2021. Credit: NASA / JPL-Caltech / SwRI / MSSS Image Processing: Kevin M. Gill CC BY

Flying sounds near Ganymede, magnetic fields and excellent comparisons between the oceans and atmospheres of Jupiter and Earth were discussed in a review of NASA’s Juno mission to Jupiter at the fall meeting of the American Geophysics Association in New Orleans.

Juno’s lead researcher Scott Bolton of the Southwestern Research Institute in San Antonio first presented a 50-second audio strip generated from data collected during the mission’s flight close to Jupiter Ganymede’s moon on June 7, 2021. Juno’s wave device, tuned to electric radio waves And the magnets created in the magnetosphere of Jupiter, collected the data on these emissions. Their frequency was then transferred to the audio domain to form the audio track.

“This soundtrack is so wild that you feel like you’re inside Juno as she cruises and passes Ganymede for the first time in more than two decades,” Bolton said. “If one listens carefully, one can hear the sudden change to higher frequencies around the midpoint of the recording, which represents an entry into a different region in Ganymede’s magnetosphere.”

The detailed analysis and modeling of the wave data continues. “It is possible that the change in frequency shortly after the closest approach is due to a shift from the night side to the day of Ganymede,” said William Corrett of the University of Iowa in Iowa City, a co-lead researcher in wave research.

At the time of Juno’s closest approach to Ganymede – on the mission’s 34th flight around Jupiter – the spacecraft was 1,038 km from the moon and moving at a relative speed of 67,000 km / h.

Radio emissions collected during Juno’s flight on June 7, 2021 near the moon of Jupiter Ganymede are displayed here, in mirror and sound.
Credit: NASA / JPL-Caltech / SwRI / Univ of Iowa

Jack Conerny of NASA’s Goddard Space Flight Center in Greenblatt, Maryland is Juno’s chief magnetometer researcher and the mission’s deputy chief investigator. His crew produced the most detailed map ever obtained of Jupiter’s magnetic field.

The map created from data collected from 32 laps in Juno’s main mission provides new insights into the gas giant’s mysterious blue dot, a magnetic anomaly at the star’s equator. Juno’s data indicate that there was a change in the gas giant’s magnetic field during the five years the spacecraft was in orbit, and the large blue dot moves east at a speed of about 4 cm per second relative to the rest of Jupiter’s interior, orbiting the planet every 350 years. About.

This image of JunoCam shows two of Jupiter’s large revolving storms, taken in Juno’s 38th cross at Jupiter’s Preface, on November 29, 2021. Credit: NASA / JPL-Caltech / SwRI / MSSS Image Processing: Kevin M. Gill CC BY

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