Identifying New Mascons of Moon Using Updated Chang'E-1 Lunar Topography and Gravity Models

Details Identifying New Mascons of Moon Using Updated Chang'E-1 Lunar Topography and Gravity Models Identifying New Mascons of Moon Using Updated Chang'E-1 Lunar Topography and Gravity Models

Dec 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011agufm.p41b1611p&link_type=abstract

American Geophysical Union, Fall Meeting 2011, abstract #P41B-1611

Physics

[1221] Geodesy And Gravity / Lunar And Planetary Geodesy And Gravity, [5417] Planetary Sciences: Solid Surface Planets / Gravitational Fields, [5420] Planetary Sciences: Solid Surface Planets / Impact Phenomena, Cratering

Scientific paper

Chinese 1st lunar orbiter Chang'E-1 is playing an important role in selenodetic explorations, by means of modeling topography with laser ranging as well as of improving gravity field model with radio matric tracking data. After carefully checking and validating the laser and tracking data of Chang'E-1 mission, new topography and gravity model have been estimated. The errors due to time tag, instrumental bias, and S/C orbits in LAM data are removed for new topography model. The new gravity model using Chang'E-1 data can success state of art lunar gravity model at long wave length with a factor of two. Also, using the new developed lunar topography model and gravity model of Chang'E -1, some middle scare surface characteristics and old mascon basins and craters have been newly identified and discovered.[This work is supported by Chang'E-1 mission, by NSFC No.10973031 as well as by China national high-tech projects 2010AA122206]

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