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6 July 2018 New Hobby Eberly telescope metrology systems: design, implementation, and on-sky performance
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Abstract
The Hobby-Eberly Telescope is an innovative 10-meter telescope, located at the McDonald Observatory. We have completed a major multi-year upgrade of the HET that has substantially increased the field of view to 22 arcminutes by replacing the optical corrector, tracker, and prime focus instrument package and by developing a new telescope control and metrology systems. The metrology systems include four independent optical sensors to provide fully redundant alignment and pointing information to keep the telescope aligned to within a few microns and a few arc seconds. We detail the design, implementation, on-sky performance, and lessons learned.
© (2018) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Hanshin Lee, Gary J. Hill, Niv Drory, Brian L. Vattiat, Jason Ramsey, Randy Bryant, Matthew Shetrone, Stephen Odewahn, Sergey Rostopchin, Martin Landriau, Jim Fowler, Ron Leck, Herman Kriel, and George Damm "New Hobby Eberly telescope metrology systems: design, implementation, and on-sky performance", Proc. SPIE 10700, Ground-based and Airborne Telescopes VII, 107002B (6 July 2018); https://doi.org/10.1117/12.2314138
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