@inproceedings{90ac080b73d3494da31a0776fb360fa7,
title = "Development of the GMT Telescope Metrology System",
abstract = "The Giant Magellan Telescope, with a 25.4 m primary and operating from the ultraviolet to the long wave infrared, is being built as one of the next-generation Extremely Large Telescopes. The size of the GMT and its doubly segmented design create a unique set of challenges for telescope alignment, from initial alignment during the assembly, integration, verification and commissioning phase to operational alignment between and during the telescope exposures. GMT therefore includes a Telescope Metrology System (TMS) that uses networks of laser trackers and absolute and differential distance-measuring interferometers for improved alignment efficiency and phasing of the mirror segments. The TMS has successfully passed its Preliminary Design Review and entered the Final Design phase. In this paper we present the current design and expected performance of the GMT TMS.",
keywords = "Giant Magellan Telescope, alignment, distance measuring interferometer, laser tracker, metrology, retroreflector, segment piston",
author = "Bo Xin and Bijan Nemati and Richard Demers and Patricio Schurter and Hugo Chiquito and William Schoenell and Josema Filgueira and Haddad, {Juan Pablo} and Peter Thompson and Keath Beifus and Antonin Bouchez and Breann Sitarski and Joel Nissen and Heejoo Choi and Guillermo Gonzalez and David Nemati and Peter Williams",
note = "Publisher Copyright: {\textcopyright} 2024 SPIE.; Ground-Based and Airborne Telescopes X 2024 ; Conference date: 16-06-2024 Through 21-06-2024",
year = "2024",
doi = "10.1117/12.3020638",
language = "English (US)",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
publisher = "SPIE",
editor = "Marshall, {Heather K.} and Jason Spyromilio and Tomonori Usuda",
booktitle = "Ground-Based and Airborne Telescopes X",
}