The Spitzer Space Telescope (SST, or Space Infrared Telescope Facility, SIRTF) is an Infrared (IR) satellite launched 2003. Most instruments failed in 2009 when the liquid Helium (He) supply ran out, but "IRAC' still can image in some of its bands, so it continues to be used as the Spitzer Warm Mission.
It has a heliocentric orbit, trailing Earth's orbit by about .1 Astronomical Unit (AU). It is named for scientist Lyman Spitzer.
Ritchey-Chrétien Telescope (RCT)
Spitzer Extended Deep Survey (SEDS)
Spitzer HETDEX Exploratory Large Area Survey (SHELA)