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Global Precipitation Measurement (GPM) Orbit Design and Autonomous ManeuversThe NASA Goddard Space Flight Center's Global Precipitation Measurement (GPM) mission will meet a challenge of measuring worldwide precipitation every three hours. The GPM spacecraft, part of a constellation, will be required to maintain a circular orbit in a high drag environment to accomplish this challenge. Analysis by the Flight Dynamics Analysis Branch has shown that the prime orbit altitude of 40% is necessary to prevent ground track repeating. Combined with goals to minimize maneuver impacts to science data collection and enabling reasonable long-term orbit predictions, the GPM project has decided to fly an autonomous maneuver system. This system is a derivative of the successful New Millennium Program technology flown onboard the Earth Observing-1 mission. This paper presents the driving science requirements and goals of the mission and shows how they will be met. Analysis of the orbit optimization and the AV requirements for several ballistic properties are presented. The architecture of the autonomous maneuvering system to meet the goals and requirements is presented along with simulations using a GPM prototype. Additionally, the use of the GPM autonomous system to mitigate possible collision avoidance and to aid other spacecraft systems during navigation outages is explored.
Document ID
20040034123
Acquisition Source
Goddard Space Flight Center
Document Type
Conference Paper
Authors
Folta, David
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Mendelsohn, Chad
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Date Acquired
August 21, 2013
Publication Date
January 1, 2003
Subject Category
Meteorology And Climatology
Meeting Information
Meeting: 2003 AAS/AIAA Astrodynamics Specialist Conference Meeting
Location: Big Sky, MT
Country: United States
Start Date: August 3, 2003
End Date: August 7, 2003
Sponsors: American Inst. of Aeronautics and Astronautics, American Astronautical Society
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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