Title: The Snow and Water Imaging Spectrometer (SWIS): Progress, optomechanical, and detector updates
Presenting Author: Holly Bender
Organization:Jet Propulsion Laboratory
Co-Author(s): Pantazis Mouroulis

Abstract:
The Snow and Water Imaging Spectrometer is a scalable imaging spectrometer capable of addressing the demanding needs of coastal ocean science and snow monitoring simultaneously, while being suitable for implementation from a CubeSat platform. The development is entering the second year of a three-year Instrument Incubator award. In this talk we describe progress in the optomechanical design and the on-board calibration (OBC) mechanism, the design for which has now been completed. Stringent alignment and stability tolerances are achieved. Also, an innovative single drive performs a dual mechanism function of positioning the OBC as well as providing a shutter for dark frames. In addition, an excellent detector linear variable antireflection coating that meets requirements has been demonstrated on test coupons.