Mitsubishi Electric was contracted to develop TMT’s main structure and segment-handling system (SHS). The operational headquarters of the TMT Observatory will be situated within a two-hour drive of the summit area. The support facilities will include electrical and mechanical plant, accommodation facilities, maintenance yard, personnel spaces, computer room, mechanical workshop, storage and warehousing facility, as well as the shipping and receiving area. The TMT’s operational support facility will handle telescope operations, and maintenance of mirrors, basic engineering and technical activities. It will also enable the capture, transfer and storage of all science and engineering data sets. The TMT will be installed with the observation execution system (OES), which will support the control architecture and ensure the efficient structure of the observatory system for scientific observations. The science instruments of the TMT telescope will include a wide-field, multi-object spectrograph working at optical wavelengths (WFOS), an integral-field unit spectrometer with imaging capability working at near-infrared wavelengths (IRIS), and a multi-slit, near-infrared spectrometer with imaging capability (IRMS).
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Science instruments and software architecture The telescope will be 200x faster and capture objects that are 200x fainter than existing telescopes. The secondary mirror, with a diameter of 3.1m, will be mounted on a steel mirror cell, whereas the flat-shaped tertiary mirror will be placed in the middle of the primary mirror. The images will be formed 20m from the centre of the tertiary mirror and the focal ratio of the telescope will be f/15. “The telescope will be 200x faster and capture objects that are 200x fainter than existing telescopes.” The primary mirror will have a diameter of 30m and a total collecting area of 655m². The telescope with 492 hexagonal mirror segments will have three mirrors, including aspheric primary and secondary mirrors, as well as a flat tertiary mirror. The elevation axis will be 3.5m above the primary mirror vertex, while the back focal distance will be 16.5m. TMT will integrate an aplanatic Cassegrain (Ritchey-Chrétien) optical design. It will house elevators, stairs and walkways to access all subsystems of the telescope. The structure of the TMT will be based on an altitude over azimuth (alt-az) mount powered by direct-drive linear motors.
Design and features of Thirty Meter Telescope The permission for the construction of the telescope on Maunakea site was granted by the BLNR in September 2017. In July 2009, TMT scientists carried out the five-year site testing campaign and selected Maunakea as the location for the telescope, as it is situated above approximately 40% of Earth’s atmosphere and has good atmospheric properties.Ĭonstruction of the telescope was, however, halted in 2015 when the Hawaii Supreme Court cancelled the Conservation District Use Permit issued by the Board of Land and Natural Resources (BLNR) to the University of Hawaii for building TMT on Maunakea. Gordon and Betty Moore Foundation initially invested $50m for the design of the TMT in 2003, followed by an additional $200m in 2007. Thirty Meter Telescope project background It is a joint initiative of Caltech, the University of California, the National Institutes of Natural Sciences of Japan, the National Astronomical Observatories of the Chinese Academy of Sciences, the Department of Science and Technology of India, the National Research Council (Canada), and the Association of Universities for Research in Astronomy (AURA). TIO is a non-profit organisation established in May 2014. The official groundbreaking ceremony of the project was held in Maunakea in October 2014. It will enable the detection and investigation of black holes in distant galaxies, as well as in the centre of the Milky Way. The telescope will be situated at an altitude of 4,012m in Maunakea, Hawaii Island. Thirty Meter Telescope (TMT) is a powerful next-generation optical telescope being built by TMT International Observatory (TIO). The first light of the telescope is expected to be obtained in July 2027. TMT will have primary, secondary and tertiary mirrors. The Thirty Meter Telescope (TMT) will be positioned at Maunakea in Hawaii.
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