On-sky performance of the SDSS-V wide field corrector

Aidan C. Gray; Robert H. Barkhouser; Stephen A. Smee; Randy P. Hammond; Albert Harding; Solange Ramírez; Stefanie Wachter; Juna Kollmeier; Dmitry Bizyaev; Jamey Eriksen; Dylan Gatlin; Katie Grabowski; Karen Kinemuchi; Dan Long; Viktor Malanushenko; Fred Mrozek; Tracy Naugle; Audrey Oravetz; Daniel Oravetz; Kaike Pan; Ryan Wagner; John Wilson

doi:10.1117/12.2630539

29 August 2022 On-sky performance of the SDSS-V wide field corrector

Aidan C. Gray, Robert H. Barkhouser, Stephen A. Smee, Randy P. Hammond, Albert Harding, Solange Ramírez, Stefanie Wachter, Juna Kollmeier, Dmitry Bizyaev, Jamey Eriksen, Dylan Gatlin, Katie Grabowski, Karen Kinemuchi, Dan Long, Viktor Malanushenko, Fred Mrozek, Tracy Naugle, Audrey Oravetz, Daniel Oravetz, Kaike Pan, Ryan Wagner, John Wilson

Author Affiliations +

Proceedings Volume 12184, Ground-based and Airborne Instrumentation for Astronomy IX; 1218462 (2022) https://doi.org/10.1117/12.2630539
Event: SPIE Astronomical Telescopes + Instrumentation, 2022, Montréal, Québec, Canada

Conference Poster

Abstract

We present the on-sky performance of the new wide field corrector for the fifth generation of the Sloan Digital Sky Survey (SDSS-V). This new three-element corrector was designed to replace the previous two-element design, which had an aspherical focal surface and was not optimized for the infrared (H-band). The purpose of the new corrector is to improve the imaging performance required for a new robotic Fiber Positioning System (FPS). For commissioning, a Focal Surface Camera (FSC) was developed and used to determine the focal surface location relative to the telescope interface, and to verify imaging performance across the 3-degree field of view of the corrector. This paper discusses the commissioning process in detail, describes how the imaging data were processed, and presents the measured image quality across the field.

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Aidan C. Gray, Robert H. Barkhouser, Stephen A. Smee, Randy P. Hammond, Albert Harding, Solange Ramírez, Stefanie Wachter, Juna Kollmeier, Dmitry Bizyaev, Jamey Eriksen, Dylan Gatlin, Katie Grabowski, Karen Kinemuchi, Dan Long, Viktor Malanushenko, Fred Mrozek, Tracy Naugle, Audrey Oravetz, Daniel Oravetz, Kaike Pan, Ryan Wagner, and John Wilson "On-sky performance of the SDSS-V wide field corrector", Proc. SPIE 12184, Ground-based and Airborne Instrumentation for Astronomy IX, 1218462 (29 August 2022); https://doi.org/10.1117/12.2630539

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