Panchromatic Fourier Transform Spectrometer (PanFTS) for the Geostationary Coastal and Air Pollution Events (GEO-CAPE) Mission

The NRC decadal survey of earth science from space proposed the GEO-CAPE and GACM missions to study changes in atmospheric composition, global climate and the coastal oceans. To properly address air quality, the decadal survey highlighted the need for vertical profile measurements with sensitivity into the atmospheric boundary layer. The Panchromatic Fourier Transform Spectrometer (PanFTS), a new project within the NASA Instrument Incubator Program, will measure all of the trace species called out in the decadal survey for GEO-CAPE and GACM. With continuous sensitivity from 0.26 to 15 micron and high spectral resolution, PanFTS combines the functionality of separate UV, visible and IR instruments in a single package. This presentation will discuss the design approach and technology development challenges for PanFTS including high speed, high resolution focal plane arrays, and wide spectral coverage optical design.