Estimating the Lunar Core Equatorial Ellipticity Using Lunar Laser Ranging

V. Viswanathan1,2, E. Mazarico1, S. Goossens1,2, N. Rambaux3 and D.E. Smith4 1NASA Goddard Space Flight Center, Greenbelt, MD 20771, USA; 2University of Maryland Baltimore County, Baltimore, MD 21250, USA; 3IMCCE, Observatoire de Paris, Université Pierre et Marie Curie, Paris 75014, France; 4Department of Earth, Atmospheric and Planetary Sciences, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.