SCUBA (for Submillimetre Common-Use Bolometer Array) is
is the name of two instruments (SCUBA-1 and SCUBA-2)
on the James Clerk Maxwell Telescope (JCMT) in Hawaii.
SCUBA-1 had 91 pixels at 450 microns and 37 pixels
at 850 microns, and detects thermal Emission from
Cosmic Dust. It was deployed in the 1990s and
retired in 2005.
SCUBA-2 has 5120 array elements at each of the same two
Wavelengths, and was deployed in November 2011.
With was produced the SCUBA-2 All Sky Survey (SASSy),
a survey of the northern sky with an Angular Resolution
of 14 arcseconds.
James Clerk Maxwell Telescope (JCMT)
Submillimeter Galaxy Designator