P007
Comparative Planetology: Large Planetesimals and Dwarf Planets Throughout the Solar System

Session ID#: 82009

Session Description:
Observations returned by space missions (e.g., Dawn, New Horizons, Cassini) and large Earth-bound telescopic surveys (e.g., NEOWISE, Adaptive optics observations) over the past decade offer a broad encompassing view of the population of large planetesimals and dwarf planets that formed shortly after solar system formation. Most of these bodies have retained information on their accretional environments while others have undergone significant internal evolution.

The Psyche and Lucy missions now prepare to continue deciphering the solar system’s early history with the exploration of 16 Psyche and Jupiter’s Trojan asteroids, while instruments on the extremely large telescopes available in the next decade will provide observations with unprecedented details of many large planetesimals.

This session welcomes abstracts that address new observations and models of large planetesimals found across the solar system, compare and contrast the properties of planetesimals found in various small body reservoirs, and address their possible genetic relationships.

Index Terms:

6205 Asteroids [PLANETARY SCIENCES: SOLAR SYSTEM OBJECTS]
6207 Comparative planetology [PLANETARY SCIENCES: SOLAR SYSTEM OBJECTS]
6211 Centaurs [PLANETARY SCIENCES: SOLAR SYSTEM OBJECTS]
6224 Kuiper belt objects [PLANETARY SCIENCES: SOLAR SYSTEM OBJECTS]

Primary Convener:  Julie C Castillo, Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, United States
Conveners:  Franck Marchis, SETI institute, Carl Sagan Center, Mountain View, United States and Debra Buczkowski, Johns Hopkins Applied Physics Laboratory, Laurel, MD, United States
Primary Liaison:  Julie C Castillo, Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, United States
 
A new global database of impact craters on Ceres (487171)
Kousei Toyokawa, Naoyuki Hirata and Sayuri Tanaka, Kobe University, Kobe, Japan
 
Secular Variations in the Orbit and Spin of Asteroid (16) Psyche (499207)
Bruce G Bills, Jet Propulsion Laboratory, Pasadena, CA, United States and Bryan R. Scott, University of California Riverside, astronomy, Riverside, United States
 
Understanding Asteroid 16 Psyche's Composition through 3D Hydrocode Impact Crater Models (499647)
Wendy K Caldwell1, Abigail Hunter1 and Catherine S Plesko2, (1)Los Alamos National Laboratory, X-Computational Physics Division, Los Alamos, NM, United States, (2)Los Alamos National Laboratory, Los Alamos, NM, United States
 
Origins of Asteroids: Insights from Meteorites, Remote Sensing, and Returned Samples (516850)
Edward Scott, University of Hawaii at Manoa, Hawaii Institute for Geophysics and Planetology, Honolulu, HI, United States and Ian Stewart Sanders, Trinity College Dublin, Department of Geology, Dublin 2, Ireland
 
The Behavior of Volatiles on Vesta and Ceres Investigated via Laboratory Experiments and Geomorphological Analyses (518520)
Samantha Rose Baker, University of Chicago, Chicago, IL, United States, Jennifer E. C. Scully, University of California Los Angeles, Los Angeles, CA, United States, Michael Poston, Southwest Research Institute, San Antonio, TX, United States, Elizabeth Carey, JPL/NASA/Caltech, Pasadena, CA, United States, Julie C Castillo, Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, United States and Carol A Raymond, NASA Jet Propulsion Laboratory, Pasadena, CA, United States
 
Revealing the Varied Sources of Faculae-Forming Brines in Occator Crater via Surface and Sub-Surface Analyses (518795)
Jennifer E. C. Scully1, Paul Schenk2, Julie C Castillo3, Debra Buczkowski4, David A Williams5, Jan Hendrik Pasckert6, Kayla Duarte7, Vivian Romero7, Lynnae C. Quick8, Michael Sori9, Margaret E Landis10, Carol A Raymond11, Alicia Neesemann12, Britney E Schmidt13, Hanna G Sizemore14 and Christopher T Russell15, (1)Jet Propulsion Laboratory, Pasadena, CA, United States, (2)Lunar and Planetary Institute, Houston, TX, United States, (3)Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, United States, (4)Johns Hopkins Applied Physics Laboratory, Laurel, MD, United States, (5)Arizona State University, Tempe, AZ, United States, (6)University of Münster, Münster, Germany, (7)Georgia Institute of Technology Main Campus, Atlanta, GA, United States, (8)NASA-Goddard Space Flight Center, Planetary Geodynamics Laboratory, Greenbelt, MD, United States, (9)University of Arizona, Lunar and Planetary Laboratory, Tucson, AZ, United States, (10)University of Colorado at Boulder, Laboratory for Atmospheric and Space Physics, Boulder, CO, United States, (11)NASA Jet Propulsion Laboratory, Pasadena, CA, United States, (12)Free University of Berlin, Berlin, Germany, (13)Georgia Institute of Technology, School of Earth and Atmospheric Sciences, Atlanta, GA, United States, (14)Planetary Science Institute Tucson, Tucson, AZ, United States, (15)University of California Los Angeles, Department of Earth Planetary and Space Sciences, Los Angeles, CA, United States
 
Constraining the surface composition of asteroid (16) Psyche and supporting future observations from the NASA Psyche mission's Multispectral Imager using reflectance spectroscopy of metal-rich meteorites (523391)
Steven Daniel Dibb1, James F Bell III1, Linda T Elkins-Tanton1, David (Dave) Williams2, Richard P Binzel3 and The Psyche Mission Team, (1)Arizona State University, Tempe, AZ, United States, (2)Arizona State University, (3)MIT Rm 54-410, Cambridge, MA, United States
 
(704) Interamnia: A transition object between a dwarf planet and a typical irregular-shaped minor body (532278)
Josef Hanus, Charles University, Astronomical Institute, Prague, Czech Republic, Pierre Vernazza, Aix Marseille University, LAM, Marseille Cedex 03, France, Matti Viikinkoski, Tampere University of Technology, Department of Mathematics, Tampere, Finland, Marin Ferrais, Université de Liège, Liege, Belgium, Nicolas Rambaux, Sorbonne Université, Observatoire de Paris-IMCCE, Paris, France and the Harissa team
 
Planetesimal Cores May Come in Many Flavors; How Oxidation State Affects Core Sulfur Content (534277)
Hannah Bercovici1, Linda T Elkins-Tanton1, Laura K Schaefer2 and Joseph G O'Rourke1, (1)Arizona State University, Tempe, AZ, United States, (2)Stanford University, Stanford, AZ, United States
 
Future studies of large planetesimals in the solar system with astrophysics assets: JWST and beyond (Invited) (541929)
Stefanie N Milam1, Bryan Holler2, John Stansberry2 and Andrew Rivkin3, (1)NASA Goddard Space Flight Center, Solar System Exploration Division, Greenbelt, MD, United States, (2)Space Telescope Science Institute, Baltimore, United States, (3)Applied Physics Laboratory Johns Hopkins, Laurel, MD, United States
 
Putative Pingos may Populate Portions of Occator Crater, Ceres (547603)
Kynan Hughson1, Britney E Schmidt2, Hanna G Sizemore3, Jennifer E. C. Scully4,5, Kayla Duarte1, Vivian Romero6, Paul Schenk7, Debra Buczkowski8, David A Williams9, Andreas Nathues10, Julie C Castillo11, Carol A Raymond5 and Christopher T Russell12, (1)Georgia Institute of Technology Main Campus, Atlanta, GA, United States, (2)Georgia Institute of Technology, School of Earth and Atmospheric Sciences, Atlanta, GA, United States, (3)Planetary Science Institute Tucson, Tucson, AZ, United States, (4)University of California Los Angeles, Los Angeles, CA, United States, (5)NASA Jet Propulsion Laboratory, Pasadena, CA, United States, (6)Georgia Institute of Technology Main Campus, Atlanta, United States, (7)Lunar and Planetary Institute, Houston, TX, United States, (8)Johns Hopkins Applied Physics Laboratory, Laurel, MD, United States, (9)Arizona State University, Tempe, AZ, United States, (10)Max Planck Institute for Solar System Research, Katlenburg-Lindau, Germany, (11)Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, United States, (12)University of California Los Angeles, Department of Earth Planetary and Space Sciences, Los Angeles, CA, United States
 
Thermal Evolution and Core Formation on Asteroid 4 Vesta in the Magma Ocean Regime (551985)
Walter S. Kiefer, Lunar and Planetary Institute, Houston, TX, United States and David W Mittlefehldt, NASA/Johnson Space Center, Houston, TX, United States
 
Pluto and Charon Fully Illuminated (554431)
Bonnie J Buratti, Jet Propulsion Laboratory, Pasadena, CA, United States, Michael D Hicks, JPL, Pasadena, CA, United States, James Bauer, University of Maryland College Park, Astronomy, College Park, MD, United States and Emily Kramer, JPL/NASA/Caltech, Pasadena, United States
 
The New Horizons Mission: Pluto and the Kuiper Belt Up-Close (Invited) (558816)
Kelsi N Singer1, Alan Stern2, Jeffrey M Moore3, John R Spencer1, William B McKinnon4, Oliver L White5, Paul Schenk6, Simon Porter7, Anne Verbiscer8, Alex H Parker7, Marc W Buie1, Mark Showalter9, Orkan M Umurhan9, Leslie A Young1, Richard P Binzel10,11, William M Grundy12, Silvia Protopapa7, Harold A Weaver Jr13, Catherine Olkin14, Kimberly Ennico Smith15, Joel Wm Parker1 and The New Horizons Science Team, (1)Southwest Research Institute, Boulder, CO, United States, (2)Southwest Research Institute San Antonio, San Antonio, TX, United States, (3)NASA Ames Research Center, Moffett Field, United States, (4)Washington Univ, Saint Louis, MO, United States, (5)SETI Institute Mountain View, Mountain View, United States, (6)Lunar and Planetary Institute, Houston, TX, United States, (7)Southwest Research Institute Boulder, Boulder, United States, (8)University of Virginia, Charlottesville, VA, United States, (9)SETI Institute Mountain View, Mountain View, CA, United States, (10)MIT Rm 54-410, Cambridge, MA, United States, (11)Massachusetts Institute of Technology, Department of Earth, Atmospheric, and Planetary Sciences, Cambridge, MA, United States, (12)Lowell Observatory, Flagstaff, AZ, United States, (13)The Johns Hopkins University, Laurel, MD, United States, (14)Southwest Research Institute Boulder, Boulder, CO, United States, (15)NASA Ames Research Center, Moffett Field, CA, United States
 
U-Pb Chronology of Zircons from Anomalous Eucrite Serra Pelada (570473)
Qin Zhou1, Qing-Zhu Yin2, Matthew Sanborn2, Karen G Ziegler3, Qiu-Li Li4, Chun-Lai Li1 and Yu Liu5, (1)National Astronomical Observatories, Chinese Academy of Sciences, Beijing, China, (2)University of California Davis, Davis, CA, United States, (3)Univ of NM-Inst of Meteoritics, Albuquerque, NM, United States, (4)Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, China, (5)INSTITUTE OF GEOLOGY AND GEOPHYSICS CHINESE ACADEMY OF SCIENCES, Beijing, China
 
Condensation and Formation of Ice on Planets as a Consequence of Gravity (597802)
Maria Vincent, University of California Los Angeles, Earth, Planetary and Space Sciences, Los Angeles, CA, United States and David J Stevenson, California Institute of Technology, Pasadena, CA, United States
 
Impact-Driven Mobilization of Deep Crustal Brines on Dwarf Planet Ceres (619679)
Carol A Raymond1, Anton Ermakov1, Julie C Castillo-Rogez1, Simone Marchi2, Brandon C Johnson3, Marc A Hesse4, Jennifer E. C. Scully1, Debra Buczkowski5, Hanna G Sizemore6, Paul Schenk7, Andreas Nathues8, Ryan S Park1, Thomas H Prettyman9, Marc Rayman1 and Christopher T Russell10, (1)Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, United States, (2)Southwest Research Institute, Boulder, CO, United States, (3)Brown University, Earth, Environmental and Planetary Sciences, Providence, RI, United States, (4)University of Texas at Austin, Geological Sciences, Austin, TX, United States, (5)Johns Hopkins Applied Physics Laboratory, Laurel, MD, United States, (6)Planetary Science Institute Tucson, Tucson, AZ, United States, (7)Lunar and Planetary Institute, Houston, TX, United States, (8)Max Planck Institute for Solar System Research, Katlenburg-Lindau, Germany, (9)Planetary Science Institute Albuquerque, Albuquerque, NM, United States, (10)University of California Los Angeles, Department of Earth Planetary and Space Sciences, Los Angeles, CA, United States
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