P24A:
Ceres and Vesta: Understanding the Protoplanets of the Asteroid Belt I


Submit an Abstract to this Session


Session ID#: 60131

Session Description:
Many of the outstanding questions about Vesta and Ceres have been addressed by analyzing data from the Dawn mission. A comprehensive mapping campaign was undertaken at both bodies, as well as studies of their compositions, geophysical properties, and interiors, which enabled new understanding of their place in the history of our Solar System. Although, prior to Dawn, thought to be currently geologically inactive, with surfaces modified primarily by impacts, there is evidence for magmatic activity on Vesta, cryovolcanism on Ceres, and tectonic processes on both. Dawn’s second extended mission from the planned 35-km pericenter altitude orbit promises new observations by the time of the meeting that will enable characterization of Ceres at unprecedented resolution.

We encourage abstract submissions related to geologic, geophysical, spectroscopic and compositional analyses of Ceres and Vesta. Possible topics include analyses of Dawn data, telescopic observations, modeling and laboratory experiments. Comparative analyses with other bodies are welcome.

Primary Convener:  Anton Ermakov, University of California Berkeley, Earth and Planetary Sciences, Berkeley, CA, United States; Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, United States
Conveners:  Debra Buczkowski, Johns Hopkins University Applied Physics Laboratory, Laurel, MD, United States, Maria Cristina De Sanctis, IAPS-INAF, Rome, Italy and Harry Y McSween Jr, University of Tennessee, Earth & Planetary Sciences, Knoxville, TN, United States
Primary Liaison:  Anton Ermakov, Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, United States; University of California Berkeley, Earth and Planetary Sciences, Berkeley, CA, United States
Chairs:  Harry Y McSween Jr, University of Tennessee, Earth & Planetary Sciences, Knoxville, TN, United States and Anton Ermakov, University of California, Berkeley, Space Sciences Laboratory, Berkeley, United States
OSPA Liaison:  Anton Ermakov, University of California, Berkeley, Space Sciences Laboratory, Berkeley, United States
Index Terms:

6024 Interiors [PLANETARY SCIENCES: COMETS AND SMALL BODIES]
6055 Surfaces [PLANETARY SCIENCES: COMETS AND SMALL BODIES]
6063 Volcanism [PLANETARY SCIENCES: COMETS AND SMALL BODIES]
6205 Asteroids [PLANETARY SCIENCES: SOLAR SYSTEM OBJECTS]

Abstracts Submitted to this Session:

Dawn’s second extended mission at Ceres: The final harvest (441518)
Carol A Raymond1, Julie C Castillo1, Christopher T Russell2, Maria Cristina De Sanctis3, Andreas Nathues4, Thomas H Prettyman5, Ryan S Park6, Marc Rayman7, Carol Ann Polanskey8, Steven P Joy9, Debra Buczkowski10, Anton Ermakov11, Simone Marchi12, Carle M Pieters13, Lynnae C Quick14, Paul Schenk15, Britney Schmidt16, Jennifer E. C. Scully17, Hanna G Sizemore18, Federico Tosi19 and The Dawn Science Team, (1)Jet Propulsion Laboratory, California Institute of Technology, Pasadena, United States, (2)University of California Los Angeles, Los Angeles, United States, (3)IAPS-INAF, Rome, Italy, (4)Max Planck Institute for Solar System Research, Katlenburg-Lindau, Germany, (5)Planetary Science Institute, Tucson, AZ, United States, (6)NASA Jet Propulsion Laboratory, La Cañada Flintridge, United States, (7)NASA Jet Propulsion Laboratory, Pasadena, CA, United States, (8)Jet Propulsion Laboratory, Pasadena, CA, United States, (9)University of California Los Angeles, Department of Earth, Planetary, and Space Sciences, Los Angeles, CA, United States, (10)Johns Hopkins University Applied Physics Laboratory, Laurel, MD, United States, (11)University of California, Berkeley, Space Sciences Laboratory, Berkeley, United States, (12)Southwest Research Institute, Boulder, United States, (13)Brown University, Providence, RI, United States, (14)Smithsonian Center for Earth and Planetary Studies, Washington, DC, United States, (15)Lunar and Planetary Institute, USRA, Houston, TX, United States, (16)Cornell University, Astronomy and Earth & Atmospheric Sciences, Ithaca, United States, (17)Jet Propulsion Laboratory, Caltech, Pasadena, United States, (18)Planetary Science Institute, Marlinton, WV, United States, (19)INAF, IAPS, Rome, Italy
Occator Crater at 35 km Altitude: Dawn XM2 Mapping of a Pristine Impact Basin on a Hydrous Dwarf Planet (Invited) (385671)
Paul Schenk1, Hanna G Sizemore2, Debra Buczkowski3, Britney Schmidt4, Simone Marchi5, David P O'Brien6, Lynnae C Quick7, Carle M Pieters8, Mark V Sykes6, Carol A Raymond9 and Julie C Castillo10, (1)Lunar and Planetary Institute, USRA, Houston, TX, United States, (2)Planetary Science Institute, Marlinton, WV, United States, (3)Johns Hopkins University Applied Physics Laboratory, Laurel, MD, United States, (4)Cornell University, Astronomy and Earth & Atmospheric Sciences, Ithaca, United States, (5)Southwest Research Institute, Boulder, United States, (6)Planetary Science Institute, Tucson, AZ, United States, (7)Johns Hopkins Univ-Olin Hall, Baltimore, United States, (8)Brown University, Providence, RI, United States, (9)NASA Jet Propulsion Laboratory, Pasadena, CA, United States, (10)Jet Propulsion Laboratory, California Institute of Technology, Pasadena, United States
Ready for Their Close-up: Insights about Occator’s Bright Faculae Derived from New, Highest Resolution Observations of Ceres (442439)
Jennifer E. C. Scully1, David A Williams2, Debra Buczkowski3, Paul Schenk4, Britney Schmidt5, Hanna Sizemore6, Margaret E Landis7, Michael Sori8, Jan Hendrik Pasckert9, Adrian Neesemann10, David P O'Brien11, Julie C Castillo1, Carol A Raymond12, Christopher T Russell13, Ralf Jaumann14, Katrin Stephan15, Mark V Sykes11 and The Dawn Team, (1)Jet Propulsion Laboratory, California Institute of Technology, Pasadena, United States, (2)Arizona State University, Tempe, AZ, United States, (3)Johns Hopkins University Applied Physics Laboratory, Laurel, MD, United States, (4)Lunar and Planetary Institute, USRA, Houston, TX, United States, (5)Cornell University, Astronomy and Earth & Atmospheric Sciences, Ithaca, United States, (6)Planetary Science Institute, Tuscon, United States, (7)Planetary Science Institute Albuquerque, Albuquerque, NM, United States, (8)University of Arizona, Lunar and Planetary Laboratory, Tucson, AZ, United States, (9)University of Münster, Münster, Germany, (10)FU, Berlin, Germany, (11)Planetary Science Institute, Tucson, AZ, United States, (12)NASA Jet Propulsion Laboratory, Pasadena, CA, United States, (13)University of California Los Angeles, Los Angeles, United States, (14)German Aerospace Ctr, Berlin, Germany, (15)German Aerospace Center, Berlin, Germany
The possible role of water and ice in the geology of Ceres’ Occator crater (443889)
Britney Schmidt1, Hanna G Sizemore2, Kayla Duarte3, Isobel Burgess4, Vivian Romero3, Paul Schenk5, Jennifer E. C. Scully6, Debra Buczkowski7, Kynan Hughson8, Andreas Nathues9, Julie C Castillo10, Christopher T Russell11, Carol A Raymond12 and Dawn Science & Mission Teams, (1)Cornell University, Astronomy and Earth & Atmospheric Sciences, Ithaca, United States, (2)Planetary Science Institute, Marlinton, WV, United States, (3)Georgia Institute of Technology Main Campus, Atlanta, GA, United States, (4)Mount Holyoke College, South Hadley, MA, United States, (5)Lunar and Planetary Institute, USRA, Houston, TX, United States, (6)Jet Propulsion Laboratory, Caltech, Pasadena, United States, (7)Johns Hopkins University Applied Physics Laboratory, Laurel, MD, United States, (8)University of Alaska Anchorage, Anchorage, AK, United States, (9)Max Planck Institute for Solar System Research, Katlenburg-Lindau, Germany, (10)Jet Propulsion Laboratory, California Institute of Technology, Pasadena, United States, (11)University of California Los Angeles, Los Angeles, United States, (12)NASA Jet Propulsion Laboratory, Pasadena, CA, United States
Morphometric signatures of subsurface mass migration on Ceres (447785)
Danielle Y Wyrick, Southwest Research Institute, San Antonio, TX, United States, Debra Buczkowski, Johns Hopkins University Applied Physics Laboratory, Laurel, MD, United States and Hanna G Sizemore, Planetary Science Institute, Marlinton, WV, United States
High spatial resolution measurements of Ceres’ elemental composition (401459)
Thomas H Prettyman1, Naoyuki Yamashita1, Margaret E Landis2, Julie C Castillo3, Bethany L Ehlmann4, Harry Y McSween Jr5, Simone Marchi6, Carle M Pieters7, Norbert Schorghofer1, Jennifer E. C. Scully3, Michael J Toplis8, Steven P Joy9, Carol Ann Polanskey10, Marc Rayman11, Christopher T Russell12 and Carol A Raymond11, (1)Planetary Science Institute, Tucson, AZ, United States, (2)Planetary Science Institute Albuquerque, Albuquerque, NM, United States, (3)Jet Propulsion Laboratory, California Institute of Technology, Pasadena, United States, (4)California Institute of Technology, Geological and Planetary Sciences, Pasadena, CA, United States, (5)University of Tennessee, Earth & Planetary Sciences, Knoxville, TN, United States, (6)Southwest Research Institute Boulder, Boulder, CO, United States, (7)Brown University, Providence, RI, United States, (8)CNRS/IRAP, University of Toulouse, Toulouse, France, (9)University of California Los Angeles, Department of Earth, Planetary, and Space Sciences, Los Angeles, CA, United States, (10)Jet Propulsion Laboratory, Pasadena, CA, United States, (11)NASA Jet Propulsion Laboratory, Pasadena, CA, United States, (12)University of California Los Angeles, Los Angeles, United States
What Can Surface Observations Tell Us About Ceres’ Interior? (369361)
Scott D. King, Virginia Polytechnic Institute and State University, Blacksburg, VA, United States, Michael T Bland, USGS Astrogeology Science Center, Flagstaff, United States, Julie C Castillo, Jet Propulsion Laboratory, California Institute of Technology, Pasadena, United States, Anton Ermakov, University of California, Berkeley, Space Sciences Laboratory, Berkeley, United States, Roger R Fu, Harvard University, Cambridge, MA, United States, Simone Marchi, Southwest Research Institute, Boulder, United States, Carol A Raymond, NASA Jet Propulsion Laboratory, Pasadena, CA, United States, Jennifer E. C. Scully, Jet Propulsion Laboratory, Caltech, Pasadena, United States, Hanna G Sizemore, Planetary Science Institute, Marlinton, WV, United States and Christopher T Russell, University of California Los Angeles, Los Angeles, United States
Ceres and Vesta: Understanding the Protoplanets of the Asteroid Belt (Invited) (351282)
Simone Marchi, Southwest Research Institute Boulder, Boulder, CO, United States

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