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Proceedings Paper

Software development of fiber positioning sequencer for prime focus spectrograph of Subaru telescope
Author(s): Chi-Hung Yan; Chih-Yi Wen; Jennifer Karr; Shiang-Yu Wang; Johannes Gross; Hrand Aghazarian; Naoyuki Tamura; Atsushi Shimono; Craig P. Loomis; Robert H. Lupton
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Paper Abstract

The Prime Focus Spectrograph (PFS) is a new optical/near-infrared multi-fiber spectrograph designed for the prime focus of the 8.2m Subaru telescope. PFS will cover a 1.3-degree diameter field with 2394 fibers to complement the imaging capability of Hyper SuprimeCam (HSC). The Fiber Positioning System (FPS) is an automated system that controls the sequences for the operation of the PFS subsystems to achieve accurate positioning of the science fibers for astronomical observations. FPS will be operated continuously for 14 hours a night and accomplish the fiber positioning sequence every 15 minutes. The success rate of each alignment should be 95% or more and FPS should finish the fiber alignment procedure in 105 seconds. A fast centroid algorithm is implemented for measuring 2349 fiber spots within 1 second. In this report, the latest status of the development of FPS system will be given, including the system performance and closed-loop simulations.

Paper Details

Date Published: 6 July 2018
PDF: 7 pages
Proc. SPIE 10707, Software and Cyberinfrastructure for Astronomy V, 1070728 (6 July 2018); doi: 10.1117/12.2312348
Show Author Affiliations
Chi-Hung Yan, Institute of Astronomy and Astrophysics - Academia Sinica (Taiwan)
Chih-Yi Wen, Institute of Astronomy and Astrophysics - Academia Sinica (Taiwan)
Jennifer Karr, Institute of Astronomy and Astrophysics - Academia Sinica (Taiwan)
Shiang-Yu Wang, Institute of Astronomy and Astrophysics - Academia Sinica (Taiwan)
Johannes Gross, Jet Propulsion Lab. (United States)
Hrand Aghazarian, Jet Propulsion Lab. (United States)
Naoyuki Tamura, Kavli Institute for the Physics and Mathematics of the Universe (Japan)
Atsushi Shimono, Kavli Institute for the Physics and Mathematics of the Universe (Japan)
Craig P. Loomis, Princeton Univ. (United States)
Robert H. Lupton, Princeton Univ. (United States)


Published in SPIE Proceedings Vol. 10707:
Software and Cyberinfrastructure for Astronomy V
Juan C. Guzman; Jorge Ibsen, Editor(s)

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