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OSIRIS-REx Gravity Field Estimates for Bennu Using Spacecraft and Natural Particle Tracking DataThe current best estimates of Bennu’s gravity field will be presented, based on the independent solutions from four different teams involved on the OSIRIS-REx mission. The discovery of ejected particles about Bennu that may remain in orbit for several days or more provide a unique opportunity to probe the gravity field to higher degree and order than possible by using conventional spacecraft tracking. However, the non-gravitational forces acting on these particles must also be characterized, and their impact on solution accuracy must be assessed. This talk will present the latest results from the mission, incorporating spacecraft tracking from the lowest orbit in which the satellite will be during the mission.
Document ID
20190030862
Acquisition Source
Goddard Space Flight Center
Document Type
Conference Paper
Authors
Scheeres, D. J. (Colorado Univ. Boulder, CO, United States)
French, A. S. (Colorado Univ. Boulder, CO, United States)
McMahon, J. W. (Colorado Univ. Boulder, CO, United States)
Davis, A. B. (Colorado Univ. Boulder, CO, United States)
Brack, D. N. (Colorado Univ. Boulder, CO, United States)
Leonard, J. M. (KinetX Aerospace, Inc Simi Valley, CA, United States)
Antreasian, P. (KinetX Aerospace, Inc Simi Valley, CA, United States)
Brozovic, M. (Jet Propulsion Laboratory (JPL), California Institute of Technology (CalTech) Pasadena, CA, United States)
Chesley, S. R. (Jet Propulsion Laboratory (JPL), California Institute of Technology (CalTech) Pasadena, CA, United States)
Farnocchia, D. (Jet Propulsion Laboratory (JPL), California Institute of Technology (CalTech) Pasadena, CA, United States)
Jacobson, R. A. (Jet Propulsion Laboratory (JPL), California Institute of Technology (CalTech) Pasadena, CA, United States)
Takahashi, Y. (Jet Propulsion Laboratory (JPL), California Institute of Technology (CalTech) Pasadena, CA, United States)
Mazarico, E. M. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Liounis, A. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Rowlands, D. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Highsmith, D. E. (Aerospace Corp. Greenbelt, MD, United States)
Getzandanner, K. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Moreau, M. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Tricarico, P. (Planetary Science Inst. Tucson, AZ, United States)
Goossens, S. (Maryland Univ. Baltimore County (UMBC) Baltimore, MD, United States)
Johnson, C. L. (Planetary Science Inst. Tucson, AZ, United States)
Al Asad, M. M. (University of British Columbia Vancouver, British Columbia, Canada)
Daly, M. G. (York University Toronto, Ontario, Canada)
Seabrook, J. A. (York University Toronto, Ontario, Canada)
Roberts, J. (Johns Hopkins Univ. Baltimore, MD, United States)
Perry, M. (Johns Hopkins Univ. Baltimore, MD, United States)
Barnouin, O. S. (Johns Hopkins Univ. Baltimore, MD, United States)
Hergenrother, C. W. (Arizona Univ. Tucson, AZ, United States)
Nolan, M. C. (Arizona Univ. Tucson, AZ, United States)
Lauretta, D. S. (Arizona Univ. Tucson, AZ, United States)
Date Acquired
September 19, 2019
Publication Date
September 15, 2019
Subject Category
Lunar And Planetary Science And Exploration
Report/Patent Number
GSFC-E-DAA-TN68580
Meeting Information
Meeting: European Planetary Science Congress / Division for Planetary Sciences Joint Meeting (EPSC-DPS 2019)
Location: Geneva
Country: Switzerland
Start Date: September 15, 2019
End Date: September 20, 2019
Sponsors: Europlanet Society
Distribution Limits
Public
Copyright
Use by or on behalf of the US Gov. Permitted.
Technical Review
NASA Peer Committee

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