After identification, ULAS1335 was imaged using the UFTI camera on the UKIRT, on Mauna Kea, Hawaii, to confirm its photometric properties and location. It was spectroscopically confirmed as a T9 dwarf using the Gemini North telescope, also at Mauna Kea, and was imaged using IRAC on the Spitzer Space Telescope. The IRAC imaging confirmed it as the reddest (in near-to-mid infrared colors) T dwarf yet discovered, and by inference the coolest.