Participating UA astronomers and telescopes include the UA/Smithsonian Institution's 6.5-meter (260-inch) MMT on Mount Hopkins. Steward Observatory astronomers Donald W. McCarthy and Craig Kulesa will use a wide-field infrared camera called "PISCES" that may spot clouds or haze if they exist in Pluto's atmosphere. At the same time, Susan Kern and Michael Person of MIT will use a "POETS" camera loaned by Lowell Observatory to observe at optical wavelengths. POETS is an acronym for Portable Occultation Eclipse and Transit System.