The James Clerk Maxwell Telescope (JCMT) is a sub-millimeter Infrared (Far Infrared) telescope near summit of Mauna Kea in Hawaii. It was brought into service in 1987 and is used to study the Solar System, interstellar Dust and gas, and distant galaxies. Instruments:

• SCUBA-2 - Submillimetre Common-User Bolometer Array.
• HARP - heterodyne array receiver.
• ACSIS - digital autocorrelation Spectrometer.