[IGPP Everyone] Space Physics Seminar - Spring Quarter - Fri.May14 , 2021 - 3:30pm - Zoom

[Marjorie Sowmendran]

SPACE PHYSICS SEMINAR 


DEPARTMENT OF EARTH, PLANETARY, AND SPACE SCIENCES 
DEPARTMENT OF ATMOSPHERIC AND OCEANIC SCIENCES 
UNIVERSITY OF CALIFORNIA, LOS ANGELES 

Join Zoom Meeting 

https://ucla.zoom.us/j/96663537686?pwd=bXVLSVFrU2g5T0dsU2lMQTFtOW5yUT09 


Meeting ID: 966 6353 7686; Passcode: 981246 







"The Europa Clipper Magnetometer: Looking for Water Below and Above the Surface" 

Margaret G. Kivelson 
Professor Emerita 
Dept. of Earth, Planetary and Space Sciences 
University of California Los Angeles 
& 
Research Professor 
Dept. of Climate and Space Sciences and Engineering 
University of Michigan 



Abstract 

The last planetary decadal survey (2013-2022) proposed that NASA support a flagship mission, the Jupiter Europa Orbiter (JEO), designed to “ evaluate the habitability of Jupiter’s moon Europa; survey its oceans, interior, ice shell, chemistry, and composition; and identify prospective spacecraft landing sites.” Support for such a mission was widespread because the Galileo mission had provided compelling evidence that a global scale ocean containing more water than Earth’s ocean is present beneath the icy surface of Europa, the smallest of Jupiter’s Galilean moons. Studies showed that a mission to send a spacecraft into orbit around Europa would be too costly but that the primary scientific goals could be achieved if a spacecraft in orbit around Jupiter were to make more than 40 close passes of Europa. This alternative mission became the Europa Clipper mission, now in development. This seminar talk will discuss the existing evidence for a sub-surface ocean at Europa and explain how the measurements of the Europa Clipper Magnetometer, whose sensors are being built at UCLA, will augment our knowledge of the properties of the sub-surface ocean provided they are acquired with high precision. In order to assure the required precision, the magnetometer will be calibrated repeatedly both during the cruise phase and the orbital phase. While probing for the signal of the hidden ocean, the magnetometer will also look for evidence of vapor geysers rising hundreds of kilometers above the surface that have been detected in Hubble images and in localized perturbations in Galileo data. 


Friday, May 14, 2021 

3:30 - 5:00 PM 

In-Charge: C. T. Russell 









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