Io Volcano Observer (IVO): Budget travel to the outer Solar System

Thermally actuated buckling beam memory: a non-volatile memory configuration for extreme space exploration environments

“…The moons of the Jovian system, particularly Europa and Io, are among the most scientifically interesting of NASA's proposed exploration goals (Committee on Planetary Science 2011). Proposed missions range from mapping Jupiter's magnetic field (Campagnola and Kawakatsu 2012) to orbiters for Io (McEwen et al 2014;Esper et al 2003), and orbiters, landers, submersibles, and sample returns for Europa (Kloster et al 2011;Jonsson et al 2012;Powell et al 2005). The radiation environment of the Europa orbit of Jupiter includes a concentration of high-energy electrons and protons far above those encountered in any previously explored environments (Jun and Garrett 2005).…”

Does Io Have a Magma Ocean?

“…These include electronics needed for many instruments and other spacecraft systems (Cressler and Mantooth, 2017). Rad-hard instrument development includes cameras (Centurelli et al, 2018;Janesick et al, 2014;McEwen et al, 2012McEwen et al, , 2014Michaelis et al, 2017;Turtle et al, 2016), thermal imagers (Dartois et al, 2017;Gaalema et al, 2010;Hiesinger et al, 2010), laser altimeters (Althaus et al, 2016), and neutral mass spectrometers (Tulej et al, 2016). Instruments such as magnetometers (Raymond et al, 2015) and faraday cups (Westlake et al, 2016) are inherently radiation tolerant.…”

“…We have made many recommendations throughout this report for future spacecraft exploration, laboratory experiments, telescopic observations, modeling, and technology development to advance our understanding of tidal heating. However, we consider the best (most feasible) major next step to be a mission to explore Io (e.g., Esper et al, 2003;Keane et al, 2017;McEwen et al, 2014;McEwen, 2019;Suer et al, 2017;Williams et al, 2009). A relatively low-cost, competed mission in Discovery or New Frontiers that orbits Jupiter and makes multiple close flybys of Io does not require any new technologies.…”

On the contribution of PRIDE-JUICE to Jovian system ephemerides

“…As a potential complementary approach to the use of optical astrometry to stabilize the solution, the use of JUICE data combined with data from the Europa Clipper mission, previously called EMFM (Europa Multiple Flyby Mission), (Bayer et al, 2015;Mazarico et al, 2015) may result in a stabilized solution for the ephemerides of the moons, as it would provide direct tracking data of Europa, spaced in time much wider than is the case for JUICE. Similarly, Juno data, as well as any future tracking data that provides accurate information on the dynamics of Europa or Io, such as the Io Volcano Observer (IVO) mission (McEwen et al, 2014) will be greatly beneficial to the analysis of JUICE tracking data. This indicates that multiple missions to the Jovian moons will enhance the total science return of each mission separately, by providing measurements of the dynamics that are more evenly distributed over the various moons.…”