8 February 2001 Image stability requirements for a Geostationary Imaging Fourier Transform Spectrometer (GIFTS)
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Abstract
A geostationary Imaging Fourier Transform Spectrometer (GIFTS) has been selected for the NASA New Millennium Program (NMP) Earth Observing-3 (EO-3) mission. Our paper will discuss one of the key GIFTS NMP mission is designed to demonstrate new and emerging sensor and data processing technologies with the goal of making revolutionary improvements in meteorological observational capability and forecasting accuracy. The GIFTS payload is a versatile imaging FTS with programmable spectral resolution and spatial scene selection that allows radiometric accuracy and atmospheric sounding precision to be traded in near real time for area coverage. The GIFTS sensor combines high sensitivity with a massively parallel spatial data collection scheme to allow high spatial resolution measurement of the Earth's atmosphere and rapid broad area coverage. An objective of the GIFTS mission is to demonstrate the advantages of high spatial resolution on temperature and water vapor retrieval by allowing sampling in broken cloud regions. This small gsd, may require extremely good pointing control. This paper discusses the analysis of this requirement.
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Gail E. Bingham, G. Cantwell, Richard C. Robinson, Henry E. Revercomb, William L. Smith, "Image stability requirements for a Geostationary Imaging Fourier Transform Spectrometer (GIFTS)", Proc. SPIE 4151, Hyperspectral Remote Sensing of the Land and Atmosphere, (8 February 2001); doi: 10.1117/12.416999; https://doi.org/10.1117/12.416999
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