Mechanism prototyping for the GMT acquisition guiding and wavefront sensing system

Daniel Catropa; Brian McLeod; Joseph D'Arco; Daniel Durusky; Jan Kansky; Derek Kopon; Kenneth McCracken; Stuart McMuldroch; William Podgorski; Antonin Bouchez

doi:10.1117/12.2562415

13 December 2020 Mechanism prototyping for the GMT acquisition guiding and wavefront sensing system

Daniel Catropa, Brian McLeod, Joseph D'Arco, Daniel Durusky, Jan Kansky, Derek Kopon, Kenneth McCracken, Stuart McMuldroch, William Podgorski, Antonin Bouchez

Author Affiliations +

Proceedings Volume 11445, Ground-based and Airborne Telescopes VIII; 114453V (2020) https://doi.org/10.1117/12.2562415
Event: SPIE Astronomical Telescopes + Instrumentation, 2020, Online Only

Conference Poster

Abstract

The GMT Acquisition, Guidance and Wavefront Sensing System (AGWS) is responsible for making the measurements required to keep the optics of the seven-segment Giant Magellan Telescope coaligned, phased, pointed correctly and properly figured. Each AGWS probe includes several mechanisms to enable the probe to access and accurately track guide stars within its patrol field. Mechanism performance is crucial to the overall performance of the AGWS as they must be able to handle the large mass of the probe while operating over the wide GMT operational temperature and dynamic motion ranges. Prototyping test results have demonstrated compliance with challenging AGWS requirements.

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Daniel Catropa, Brian McLeod, Joseph D'Arco, Daniel Durusky, Jan Kansky, Derek Kopon, Kenneth McCracken, Stuart McMuldroch, William Podgorski, and Antonin Bouchez "Mechanism prototyping for the GMT acquisition guiding and wavefront sensing system", Proc. SPIE 11445, Ground-based and Airborne Telescopes VIII, 114453V (13 December 2020); https://doi.org/10.1117/12.2562415

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