23 September 2013 Multislit optimized spectrometer: fabrication and assembly update
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Abstract
The NASA ESTO funded Multi-slit Optimized Spectrometer (MOS) Instrument Incubator Program will advance a spatial multiplexing spectrometer for coastal ocean remote sensing from lab demonstration to flight like environment testing. Vibration testing to meet the GEVS requirements for a geostationary orbit launch will be performed. The multiple slit design reduces the required telescope aperture leading to mass and volume reductions over conventional spectrometers when applied to the GEO-CAPE oceans mission. The MOS program is entering year 3 of the 3-year program where assembly and test activities will demonstrate the performance of the MOS concept. This paper discusses the instrument design, fabrication and assembly. It outlines the test plan to realize a technology readiness level of 6. Testing focuses on characterizing radiometric impacts of the multiple slit images multiplexed onto a common focal plane, and assesses the resulting uncertainties imparted to the ocean color data products. The MOS instrument implementation for GEO-CAPE provides system benefits that can lead to cost savings and risk reduction while meeting the science objectives of understanding the dynamic coastal ocean environment.
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Tim Valle, Chuck Hardesty, William Good, Chris Seckar, Don Shea, Peter Spuhler, Curtiss O. Davis, Nicholas Tufillaro, "Multislit optimized spectrometer: fabrication and assembly update", Proc. SPIE 8870, Imaging Spectrometry XVIII, 88700I (23 September 2013); doi: 10.1117/12.2023419; https://doi.org/10.1117/12.2023419
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