The Giant Magellan Telescope (GMT) will be featured with two Gregorian secondary mirrors, an adaptive secondary mirror (ASM) and a fast-steering secondary mirror (FSM). The FSM has an effective diameter of 3.2 m and built as seven 1.1 m diameter circular segments, which are conjugated 1:1 to the seven 8.4m segments of the primary. Each FSM segment contains a tip-tilt capability for fine co-alignment of the telescope subapertures and fast guiding to attenuate telescope wind shake and mount control jitter. This tip-tilt capability thus enhances performance of the telescope in the seeing limited observation mode. As the first stage of the FSM development, Phase 0 study was conducted to develop a program plan detailing the design and manufacturing process for the seven FSM segments. The FSM development plan has been matured through an internal review by the GMTO-KASI team in May 2016 and fully assessed by an external review in June 2016. In this paper, we present the technical aspects of the FSM development plan.
| Identifer | oai:union.ndltd.org:arizona.edu/oai:arizona.openrepository.com:10150/622423 |
| Date | 22 July 2016 |
| Creators | Lee, Sungho, Cho, Myung K., Park, Chan, Han, Jeong-Yeol, Jeong, Ueejeong, Yoon, Yang-noh, Song, Je Heon, Park, Byeong-Gon, Dribusch, Christoph, Park, Won Hyun, Jun, Youra, Yang, Ho-Soon, Moon, Il-Kwon, Oh, Chang Jin, Kim, Ho-Sang, Lee, Kyoung-Don, Bernier, Robert, Alongi, Chris, Rakich, Andrew, Gardner, Paul, Dettmann, Lee, Rosenthal, Wylie |
| Contributors | Univ Arizona, Korea Astronomy and Space Science Institute (Korea, Republic of), National Optical Astronomy Observatory (United States), Korea Astronomy and Space Science Institute (Korea, Republic of), Korea Astronomy and Space Science Institute (Korea, Republic of), Korea Astronomy and Space Science Institute (Korea, Republic of), Korea Astronomy and Space Science Institute (Korea, Republic of), Korea Astronomy and Space Science Institute (Korea, Republic of), Korea Astronomy and Space Science Institute (Korea, Republic of), The Univ. of Arizona (United States), The Univ. of Arizona (United States), The Univ. of Arizona (United States), Korea Research Institute of Standards and Science (Korea, Republic of), Korea Research Institute of Standards and Science (Korea, Republic of), The Univ. of Arizona (United States), Institute for Advanced Engineering (Korea, Republic of), Institute for Advanced Engineering (Korea, Republic of), GMTO Corp. (United States), GMTO Corp. (United States), GMTO Corp. (United States), GMTO Corp. (United States), GMTO Corp. (United States), GMTO Corp. (United States) |
| Publisher | SPIE-INT SOC OPTICAL ENGINEERING |
| Source Sets | University of Arizona |
| Language | English |
| Detected Language | English |
| Type | Article |
| Rights | © 2016 SPIE |
| Relation | http://proceedings.spiedigitallibrary.org/proceeding.aspx?doi=10.1117/12.2233710 |
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