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Preliminary Results on Lunar Interior Properties from the GRAIL MissionThe Gravity Recovery and Interior Laboratory (GRAIL) mission has provided lunar gravity with unprecedented accuracy and resolution. GRAIL has produced a high-resolution map of the lunar gravity field while also determining tidal response. We present the latest gravity field solution and its preliminary implications for the Moon's interior structure, exploring properties such as the mean density, moment of inertia of the solid Moon, and tidal potential Love number k2. Lunar structure includes a thin crust, a deep mantle, a fluid core, and a suspected solid inner core. An accurate Love number mainly improves knowledge of the fluid core and deep mantle. In the future GRAIL will search for evidence of tidal dissipation and a solid inner core.
Document ID
20130013614
Acquisition Source
Goddard Space Flight Center
Document Type
Conference Paper
Authors
Williams, James G. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Konopliv, Alexander S. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Asmar, Sami W. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Lemoine, H. Jay (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Melosh, H. Jay (Purdue Univ. West Lafayette, IN, United States)
Neumann, Gregory A. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Phillips, Roger J. (Southwest Research Inst. Boulder, CO, United States)
Smith, David E. (Massachusetts Inst. of Tech. Cambridge, MA, United States)
Solomon, Sean C. (Lamont-Doherty Geological Observatory Palisades, NY, United States)
Watkins, Michael M. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Wieczorek, Mark A. (Institut de Physique du Globe Paris, France)
Zuber, Maria T. (Massachusetts Inst. of Tech. Cambridge, MA, United States)
Andrews-Hanna, Jeffrey C. (Colorado School of Mines Golden, CO, United States)
Head, James W. (Brown Univ. Providence, RI, United States)
Kiefer, Walter S. (Lunar and Planetary Inst. Houston, TX, United States)
Matsuyama, Isamu (Arizona Univ. Tucson, AZ, United States)
McGovern, Patrick J. (Lunar and Planetary Inst. Houston, TX, United States)
Nimmo, Francis (California Univ. Santa Cruz, CA, United States)
Weber, Renee C. (NASA Marshall Space Flight Center Huntsville, AL, United States)
Boggs, D. H. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Goossens, Sander J. (Maryland Univ. Baltimore County Baltimore, MD, United States)
Kruizinga, Gerhard L. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Mazarico, Erwan (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Park, Ryan S. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Yuan, Dah-Ning (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Date Acquired
August 27, 2013
Publication Date
March 18, 2013
Subject Category
Lunar And Planetary Science And Exploration
Report/Patent Number
GSFC-E-DAA-TN7319
Meeting Information
Meeting: 44th Lunar and Planetary Science Conference
Location: The Woodlands, TX
Country: United States
Start Date: March 18, 2013
End Date: March 22, 2013
Sponsors: Lunar and Planetary Inst.
Funding Number(s)
CONTRACT_GRANT: NNG06EO90A
CONTRACT_GRANT: NNX09AM53G
Distribution Limits
Public
Copyright
Public Use Permitted.

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