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Completion and performance of the Hobby-Eberly Telescope wide field upgrade
Author(s): Gary J. Hill; Niv Drory; John M. Good; Hanshin Lee; Brian L. Vattiat; Herman Kriel; Jason Ramsey; Randy Bryant; Jim Fowler; Martin Landriau; Ron Leck; Emily Mrozinski; Stephen Odewahn; Matthew Shetrone; Amy Westfall; Eusebio Terrazas; Edmundo Balderrama; Emily Bevins; Brent Buetow; John Caldwell; George Damm; Phillip MacQueen; Jerry Martin; Amanda Martin; Justin Pautzke; Katie Smither; Sergey Rostopchin; Greg Smith; Renny Spencer; Taft Armandroff; Karl Gebhardt; Lawrence W. Ramsey
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Paper Abstract

The Hobby-Eberly Telescope (HET) is an innovative large telescope with 10 meter aperture, located in West Texas at the McDonald Observatory. The HET operates with a fixed segmented primary and has a tracker, which moves the fourmirror corrector and prime focus instrument package to track the sidereal and non-sidereal motions of objects. 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 system. The upgrade has replaced all hardware and systems except for the structure, enclosure, and primary mirror. The new, reinvented wide-field HET feeds the revolutionary Visible Integral-field Replicable Unit Spectrograph (VIRUS‡), fed by 35,000 fibers, in support of the Hobby-Eberly Telescope Dark Energy Experiment (HETDEX§), a new low resolution spectrograph (LRS2), the Habitable Zone Planet Finder (HPF), and the upgraded high resolution spectrograph (HRS2). The HET Wide Field Upgrade has now been commissioned and has been in science operations since mid 2016 and in full science operations from mid 2018. This paper reviews and summarizes the upgrade, lessons learned, and the operational performance of the new HET.

Paper Details

Date Published: 6 July 2018
PDF: 19 pages
Proc. SPIE 10700, Ground-based and Airborne Telescopes VII, 107000P (6 July 2018); doi: 10.1117/12.2312350
Show Author Affiliations
Gary J. Hill, McDonald Observatory (United States)
The Univ. of Texas at Austin (United States)
Niv Drory, McDonald Observatory (United States)
The Univ. of Texas at Austin (United States)
John M. Good, McDonald Observatory (United States)
The Univ. of Texas at Austin (United States)
Hanshin Lee, McDonald Observatory (United States)
The Univ. of Texas at Austin (United States)
Brian L. Vattiat, McDonald Observatory (United States)
The Univ. of Texas at Austin (United States)
Herman Kriel, McDonald Observatory (United States)
The Univ. of Texas at Austin (United States)
Hobby-Eberly Telescope (United States)
Jason Ramsey, McDonald Observatory (United States)
The Univ. of Texas at Austin (United States)
Randy Bryant, McDonald Observatory (United States)
The Univ. of Texas at Austin (United States)
Jim Fowler, Hobby-Eberly Telescope (United States)
Martin Landriau, Lawrence Berkeley National Lab. (United States)
Ron Leck, McDonald Observatory (United States)
The Univ. of Texas at Austin (United States)
Emily Mrozinski, Hobby-Eberly Telescope (United States)
Stephen Odewahn, Hobby-Eberly Telescope (United States)
Matthew Shetrone, Hobby-Eberly Telescope (United States)
Amy Westfall, Hobby-Eberly Telescope (United States)
Eusebio Terrazas, Hobby-Eberly Telescope (United States)
Edmundo Balderrama, Hobby-Eberly Telescope (United States)
Emily Bevins, Hobby-Eberly Telescope (United States)
Brent Buetow, Hobby-Eberly Telescope (United States)
John Caldwell, Hobby-Eberly Telescope (United States)
George Damm, Hobby-Eberly Telescope (United States)
Phillip MacQueen, McDonald Observatory (United States)
The Univ. of Texas at Austin (United States)
Jerry Martin, Hobby-Eberly Telescope (United States)
Amanda Martin, Hobby-Eberly Telescope (United States)
Justin Pautzke, Hobby-Eberly Telescope (United States)
Katie Smither, Hobby-Eberly Telescope (United States)
Sergey Rostopchin, Hobby-Eberly Telescope (United States)
Greg Smith, Hobby-Eberly Telescope (United States)
Renny Spencer, Hobby-Eberly Telescope (United States)
Taft Armandroff, McDonald Observatory (United States)
The Univ. of Texas at Austin (United States)
Karl Gebhardt, McDonald Observatory (United States)
The Univ. of Texas at Austin (United States)
Lawrence W. Ramsey, The Pennsylvania State Univ. (United States)


Published in SPIE Proceedings Vol. 10700:
Ground-based and Airborne Telescopes VII
Heather K. Marshall; Jason Spyromilio; Roberto Gilmozzi, Editor(s)

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