View Instrument

Instrument Type: sounder, Operational Mode: crosstrack, Collection Type: whiskbroom, Other Information: CrIS is a Fourier Transform Spectrometer (FTS) instrument. There are 3 bands in the CrIS spectral range: long-wave infrared, mid-wave infrared, and short-wave infrared, denoted LWIR (650-1095 cm-1), MWIR (1210-1750 cm-1), and SWIR (2155-2550 cm-1). The field of regard of each band is 3.1 degrees. The field of regard is divided into nine circular Fields Of View (FOV). The ground footprint of each FOV at nadir is approximately 14 km. The instrument's field of regard is stepped to each of 30 crosstrack locations such that coverage is a minimum 2200 km swath on earth.