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|Title: ||Design of an extended mission for GRAIL|
|Authors: ||Sweetser, Theodore H.|
Wallace, Mark S.
Hatch, Sara J.
Roncoli, Ralph B.
low lunar orbit
|Issue Date: ||13-Aug-2012 |
|Publisher: ||Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2012.|
|Citation: ||2012 AIAA/AAS Astrodynamics Specialists Conference Minneapolis, Minnesota, August 13-16, 2012|
|Abstract: ||The GRAIL extended mission will extend the measurement of the lunar gravity field beyond what was achieved by the primary GRAIL mission this past spring (2012). By lowering the orbits of the two GRAIL spacecraft to less than half the altitude of the primary mission orbits on average, the resolution of the gravity field measurements will be improved by a factor of two, yielding a signicant improvement in our knowledge of the structure of the upper crust of the Moon. The challenges of flying so low and the design which will meet those challenges is presented here.|
|Appears in Collections:||JPL TRS 1992+|
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