Optical design of the Mapping Imaging Spectrometer for Europa (MISE)

摘要

The Mapping Imaging Spectrometer for Europa (MISE) is a high-throughput pushbroom imaging spectrometer designedfor NASA’s planned flyby mission to Jupiter’s moon Europa. The MISE design utilizes heritage from previouslydemonstrated instruments on airborne platforms, while advancing the state of the art to operate within Europa’s challengingenvironment. The instrument operates at F/1.4 and covers a spectral range from 0.8 to 5 microns with 10 nm spectralsampling. Through high resolution mapping, MISE is designed to identify distributions of organics, salts, acid hydrates,water ice phases, altered silicates, radiolytic compounds, and warm thermal anomalies at global, regional, and local scales.Such distribution maps will help study surface and subsurface geologic processes, and assess the habitability of Europa’socean. We discuss the optical specifications and baseline performance of the MISE optical design.