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The Prototype HyspIRI Thermal Infrared Radiometer (PHyTIR) : A high speed, multispectral, thermal instrument development in support of HyspIRI-TIR

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dc.contributor.author Hook, Simon
dc.date.accessioned 2013-10-25T21:42:18Z
dc.date.available 2013-10-25T21:42:18Z
dc.date.issued 2011-06-21
dc.identifier.citation 2011 Earth Science Technology Forum (ESTF2011), Pasadena, California, June 21-23, 2011. en_US
dc.identifier.clearanceno 11-2246
dc.identifier.uri http://hdl.handle.net/2014/43935
dc.description.abstract The Prototype HyspIRI Thermal Infrared Radiometer (PHyTIR) is being developed as part of the risk reduction activities associated with the Hyperspectral Infrared Imager (HyspIRI). The HyspIRI mission was recommended by the National Research Council Decadal Survey and includes a visible shortwave infrared (SWIR) pushboom spectrometer and a multispectral whiskbroom thermal infrared (TIR) imager. Data from the HyspIRI mission will be used to address key science questions related to the Solid Earth and Carbon Cycle and Ecosystems focus areas of the NASA Science Mission Directorate. The HyspIRI TIR system will have 60m ground resolution, better than 200mK noise equivalent delta temperature (NEDT), 0.5C absolute temperature resolution with a 5-day repeat from LEO orbit. PHyTIR addresses the technology readiness level (TRL) of certain key subsystems of the TIR imager, primarily the detector assembly and scanning mechanism. PHyTIR will use Mercury Cadmium Telluride (MCT) technology at the focal plane and operate in time delay integration mode. A custom read out integrated circuit (ROIC) will provide the high speed readout hence allowing the high data rates needed for the 5 day repeat. PHyTIR will also demonstrate a newly developed interferometeric metrology system. This system will provide an absolute measurement of the scanning mirror to an order of magnitude better than conventional optical encoders. This will minimize the reliance on ground control points hence minimizing post-processing (e.g. geo-rectification computations). en_US
dc.description.sponsorship NASA/JPL en_US
dc.language.iso en_US en_US
dc.publisher Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2011. en_US
dc.subject National Research Council Decadal Survey en_US
dc.subject signal-to-noise specifications en_US
dc.subject long-wavelength channels en_US
dc.subject Focal Plane Array (FPA), en_US
dc.title The Prototype HyspIRI Thermal Infrared Radiometer (PHyTIR) : A high speed, multispectral, thermal instrument development in support of HyspIRI-TIR en_US
dc.type Preprint en_US


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