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GOES-R STATIONKEEPING AND MOMENTUM MANAGEMENTThe NOAA Geostationary Operational Environmental Satellites (GOES) fire thrusters to remain within a 1deg longitude-latitude box and to dump accumulated angular momentum. In the past, maneuvers have disrupted GOES imaging due to attitude transients and the loss of orbit knowledge. If the R-series of spacecraft to be launched starting in 2012 were to follow current practice, maneuvers would still fail to meet Image Navigation and Registration (INR) specifications during and after thruster firings. Although maneuvers and recovery take only one percent of spacecraft lifetime, they sometimes come at inopportune times, such as hurricane season, when coverage is critical. To alleviate this problem, thruster firings small enough not to affect imaging are being considered. Eliminating post-maneuver recovery periods increases availability and facilitates autonomous operation. Frequent maneuvers also reduce 1ongitudeAatitude variation and allow satellite co-location. Improved orbit observations come from a high-altitude GPS receiver, and improved attitude control comes from thruster torque compensation. This paper reviews the effects of thruster firings on position knowledge and pointing control and suggests that low-thrust burns plus GPS and feedforward control offer a less disruptive approach to GOES-R stationkeeping and momentum management.
Document ID
20060012315
Document Type
Conference Paper
Authors
Chu, Donald (Swales Aerospace Beltsville, MD, United States)
Chen, Sam (National Oceanic and Atmospheric Administration Suitland, MD, United States)
Early, Derrick (Swales Aerospace Beltsville, MD, United States)
Freesland, Doug (ACS Engineering Silver Spring, MD, United States)
Krimchansky, Alexander (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Naasz, Bo (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Reth, Alan (Chesapeake Aerospace Grasonville, MD, United States)
Tadikonda, Kumar (Science Applications International Corp. McLean, VA, United States)
Tsui, John (National Oceanic and Atmospheric Administration Suitland, MD, United States)
Walsh, Tim (National Oceanic and Atmospheric Administration Suitland, MD, United States)
Date Acquired
August 23, 2013
Publication Date
January 1, 2006
Subject Category
Space Communications, Spacecraft Communications, Command and Tracking
Report/Patent Number
AAS-06-046
Meeting Information
29th Annual AAS Guidance and Control Conference(Breckenridge, CO)
Funding Number(s)
CONTRACT_GRANT: NAS5-01090
Distribution Limits
Public
Copyright
Public Use Permitted.

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