Adaptive field-of-view ultraviolet integral-field spectroscopy with the Ultraviolet Micromirror Imaging Spectrograph (UMIS)

The study of solar system bodies in the ultraviolet is often the study of extended sources, including vapor plumes, atmospheres, cometary tails, and planetary surfaces. These objects are traditionally studied with long-slit spectrographs that can sample only one dimension of spatial information at a time. The Ultraviolet Micromirror Imaging Spectrograph (UMIS) is a new instrument concept that will provide adaptive ultraviolet integral-field spectroscopy for the first time. UMIS employs a reconfigurable micromirror array at the focal plane to dissect portions of a 3 x 3 degree field-of-view into arbitrarily shaped apertures, each of which is then sampled spectroscopically on sub-arcminute scales and sub-nanometer resolution. The micromirror array enables this performance over a far larger field-of-regard than static image slicers, enabling efficient mapping of dynamic extended objects in the ultraviolet for the first time. UMIS is under fabrication at the University of Colorado, Laboratory for Atmospheric and Space Physics for potential future deployment on planetary science missions. This proceedings presents the UMIS optical design and development schedule.