Title: The Compact Hyperspectral Prism Spectrometer for Sustainable Land Imaging: Continuing the Landsat data record and enabling new discoveries
Presenting Author: Thomas Kampe
Organization: Ball Aerospace & Technologies Corp
Co-Author(s): William Good, Robert Slusher

Abstract:
The Compact Hyperspectral Prism Spectrometer (CHPS) is under developed for technology insertion in the future Sustainable Land Imaging program. The 2013 NRC report Landsat and Beyond: Sustaining and Enhancing the Nations Land Imaging Program recommended that the nation should "maintain a sustained, space-based, land-imaging program, while ensuring the continuity of 42-years of multispectral information." In support of this, NASA's Sustainable Land Imaging-Technology (SLI-T) program aims to develop a new generation of smaller, more capable, less costly payloads that meet or exceed current Landsat imaging capabilities. By providing continuous visible-to-shortwave hyperspectral data at high spectral resolution, CHPS will support legacy Landsat data products as well as a much broader range of land science products. CHPS incorporates full aperture, full optical path calibration, exhibits extremely low straylight and low polarization sensitivity as required to meet SLI measurement objectives. To support the satellite instrument development, Ball is currently developing an airborne prototype. We are now in year 2 of a three-year program and anticipate conducting our initial airborne test flights in 4th-quarter 2018. The development and initial performance test results of the CHPS airborne demonstrator are presented in this paper.