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Beam Steering Mechanism (BSM) Lessons LearnedThis paper describes the design, testing, and lessons learned during the development of the Advanced Topographic Laser Altimeter System (ATLAS) Beam Steering Mechanism (BSM). The BSM is a 2 degree-of-freedom tip-tilt mechanism for the purpose of pointing a flat mirror to tightly control the co-alignment of the transmitted laser and the receiver telescope of the ATLAS instrument. High resolution needs of the mission resulted in sub-arcsecond pointing and knowledge requirements, which have been met. Development of methodology to verify performance was a significant effortadvancement. The BSM will fly as part of the Ice, Cloud, and Elevation Satellite 2 Mission (ICESat 2), which is scheduled to be launched in 2017. The ICESat 2 primary mission is to map the earths surface topography for the determination of seasonal changes of ice sheet thickness as well as vegetation canopy thickness.
Document ID
20160005838
Acquisition Source
Goddard Space Flight Center
Document Type
Presentation
Authors
Blumenstock, Kenneth A. (NASA Goddard Space Flight Center Greenbelt, MD United States)
Cramer, Alexander K. (NASA Goddard Space Flight Center Greenbelt, MD United States)
Gostin, Alan B. (NASA Goddard Space Flight Center Greenbelt, MD United States)
Hakun, Claef F. (NASA Goddard Space Flight Center Greenbelt, MD United States)
Haney, Paul G. (NASA Goddard Space Flight Center Greenbelt, MD United States)
Hinkle, Matthew R. (NASA Goddard Space Flight Center Greenbelt, MD United States)
Lee, Kenneth Y. (NASA Goddard Space Flight Center Greenbelt, MD United States)
Lugo, Carlos F. (NASA Goddard Space Flight Center Greenbelt, MD United States)
Matuszeski, Adam J. (NASA Goddard Space Flight Center Greenbelt, MD United States)
Morell, Armando (NASA Goddard Space Flight Center Greenbelt, MD United States)
Armani, Nerses V. (SGT, Inc. Greenbelt, MD, United States)
Bonafede, Joseph (SGT, Inc. Greenbelt, MD, United States)
Jackson, Molly I. (SGT, Inc. Greenbelt, MD, United States)
Steigner, Peter J. (SGT, Inc. Greenbelt, MD, United States)
Stromsdorfer, Juan J. (SGT, Inc. Greenbelt, MD, United States)
Date Acquired
May 5, 2016
Publication Date
May 4, 2016
Subject Category
Spacecraft Instrumentation And Astrionics
Spacecraft Design, Testing And Performance
Report/Patent Number
GSFC-E-DAA-TN31752
Meeting Information
Meeting: Aerospace Mechanisms Symposium
Location: Santa Clara, CA
Country: United States
Start Date: May 4, 2016
End Date: May 6, 2016
Sponsors: NASA Ames Research Center
Funding Number(s)
CONTRACT_GRANT: NNG15CR64C
CONTRACT_GRANT: NNG12CR29C
CONTRACT_GRANT: NNG12CR31C
Distribution Limits
Public
Copyright
Public Use Permitted.
Keywords
Mechanism
Controls
Pointing

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