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Measurement approach and design of the CubeSat Infrared Atmospheric Sounder (CIRAS)

Show simple item record Pagano, Thomas S. Rider, Dave Rud, Mayer Ting, David Yee, Karl 2019-05-28T21:28:46Z 2019-05-28T21:28:46Z 2016-08-28
dc.identifier.citation SPIE Optics and Photonics, San Diego, California, August 28 - September 1, 2016 en_US
dc.identifier.clearanceno 16-3382
dc.description.abstract The CubeSat Infrared Atmospheric Sounder (CIRAS) will measure upwelling infrared radiation of the Earth in the MWIR region of the spectrum from space on a CubeSat. The observed radiances can be assimilated into weather forecast models and be used to retrieve lower tropospheric temperature and water vapor for climate studies. Multiple units can be flown to improve temporal coverage or in formation to provide new data products including 3D motion vector winds. CIRAS incorporates key new instrument technologies including a 2D array of High Operating Temperature Barrier Infrared Detector (HOT-BIRD) material, selected for its high uniformity, low cost, low noise and higher operating temperatures than traditional materials. The detectors are hybridized to a commercial ROIC and commercial camera electronics. The second key technology is an MWIR Grating Spectrometer (MGS) designed to provide imaging spectroscopy for atmospheric sounding in a CubeSat volume. The MGS has no moving parts and includes an immersion grating to reduce the volume and reduce distortion. The third key technology is an infrared blackbody fabricated with black silicon to have very high emissivity in a flat plate construction. JPL will also develop the mechanical, electronic and thermal subsystems for CIRAS, while the spacecraft will be a commercially available CubeSat. The integrated system will be a complete 6U CubeSat capable of measuring temperature and water vapor profiles with good lower tropospheric sensitivity. The CIRAS is the first step towards the development of an Earth Observation Nanosatellite Infrared (EON-IR) capable of meeting the replacement needs of the CrIS on JPSS. 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, 2016 en_US
dc.subject Infrared en_US
dc.subject Sounding en_US
dc.subject CubeSat en_US
dc.subject Grating en_US
dc.subject Spectrometer en_US
dc.title Measurement approach and design of the CubeSat Infrared Atmospheric Sounder (CIRAS) en_US
dc.type Preprint en_US

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