A Recipe for Geophysical Exploration of Enceladus. (arXiv:2008.02887v2 [astro-ph.IM] UPDATED)
<a href="http://arxiv.org/find/astro-ph/1/au:+Ermakov_A/0/1/0/all/0/1">Anton I. Ermakov</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Park_R/0/1/0/all/0/1">Ryan S. Park</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Roa_J/0/1/0/all/0/1">Javier Roa</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Castillo_Rogez_J/0/1/0/all/0/1">Julie C. Castillo-Rogez</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Keane_J/0/1/0/all/0/1">James T. Keane</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Nimmo_F/0/1/0/all/0/1">Francis Nimmo</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Kite_E/0/1/0/all/0/1">Edwin S. Kite</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Sotin_C/0/1/0/all/0/1">Christophe Sotin</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Lazio_T/0/1/0/all/0/1">T. Joseph W. Lazio</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Steinbrugge_G/0/1/0/all/0/1">Gregor Steinbr&#xfc;gge</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Howell_S/0/1/0/all/0/1">Samuel M. Howell</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Bills_B/0/1/0/all/0/1">Bruce G. Bills</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Hemingway_D/0/1/0/all/0/1">Douglas J. Hemingway</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Viswanathan_V/0/1/0/all/0/1">Vishnu Viswanathan</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Tobie_G/0/1/0/all/0/1">Gabriel Tobie</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Lainey_V/0/1/0/all/0/1">Valery Lainey</a>

Orbital geophysical investigations of Enceladus are critical to understanding
its energy balance. We identified key science questions for the geophysical
exploration of Enceladus, answering which would support future assessment of
Enceladus’ astrobiological potential. Using a Bayesian framework, we explored
how science requirements map to measurement requirements. We performed mission
simulations to study the sensitivity of a single spacecraft and dual spacecraft
configurations to static gravity and tidal Love numbers of Enceladus. We find
that mapping Enceladus’ gravity field, improving the accuracy of the physical
libration amplitude, and measuring Enceladus’ tidal response would provide
critical constraints on the internal structure, and establish a framework for
assessing Enceladus’ long-term habitability. This kind of investigation could
be carried out as part of a life search mission at little additional resource
requirements.

Orbital geophysical investigations of Enceladus are critical to understanding
its energy balance. We identified key science questions for the geophysical
exploration of Enceladus, answering which would support future assessment of
Enceladus’ astrobiological potential. Using a Bayesian framework, we explored
how science requirements map to measurement requirements. We performed mission
simulations to study the sensitivity of a single spacecraft and dual spacecraft
configurations to static gravity and tidal Love numbers of Enceladus. We find
that mapping Enceladus’ gravity field, improving the accuracy of the physical
libration amplitude, and measuring Enceladus’ tidal response would provide
critical constraints on the internal structure, and establish a framework for
assessing Enceladus’ long-term habitability. This kind of investigation could
be carried out as part of a life search mission at little additional resource
requirements.

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