Title of Paper: The Spaceborne Infrared Atmospheric Sounder (SIRAS) IIP Demonstration

Principal Author: Thomas Pagano

Abstract: The Spaceborne Infrared Atmospheric Sounder (SIRAS) Instrument Incubator Program successfully demonstrated a long wavelength infrared (12-15.4 micron) compact grating spectrometer with resolution of approximately 1000. This system incorporated novel wide field refractive optics including hybrid diffractive/aspheric surfaces to achieve a compact lightweight design. The system was tested at cryogenic temperatures and successfully demonstrated the spectral the throughput performance required. This paper will discuss the design, development and test of the SIRAS spectrometer and potential applications to future Earth Science Missions