Colloquium: Christian Drouet d’Aubigny

    Date: 
    Thursday, December 3, 2015 - 3:30pm - 5:00pm
    Location: 
    Meinel 307
    Description: 

    "Optics for the OSIRIS-REx Mission"

    Abstract(s): 

    OSIRIS-REx is a University of Arizona led NASA mission that will travel to an Earth crossing asteroid (Bennu), study it for a year, collect a sample and return it to Earth. The spacecraft’s payload includes a full complement of remote-sensing instruments spanning the electromagnetic spectrum from X-ray all the way to the far IR.

    This presentation will introduce the mission’s concept, scientific goals, and challenges. We will discuss OSIRIS-REx’s five remote sensing instruments: 

    • OVIRS a Visible-IR spectrometer (0.4-4um) developed by NASA Goddard Space Flight Center.
    • OTES a Fourier Transform mid to far infrared (5-50 um) spectrometer designed and built at ASU.
    • OLA a Scanning LIDAR Altimeter provided by the Canadian Space Agency
    • REXIS a coded aperture X-Ray imaging specrometer developed by Harvard and MIT students.
    • OCAMS the OSIRIS-REx Camera Suite (OCAMS) a suite of three optical imagers designed and built at the University of Arizona specifically for OSIRIS-REx.

    Emphasis will be on OCAMS and its three cameras: the PolyCam a 200mm diameter, F/3 Ritchey Chretien telescope, designed and assembled at the College of Optical Science used to navigate to Bennu from millions of kilometers away and later provide sub-centimeter resolution images of its surface from up close. The MapCam, a f=125mm F/3 color mapping camera and the SamCam a wide field camera used to document the sampling event and verify sample acquisition.

    Speaker Bio(s): 

    Christian Drouet d’Aubigny is the Deputy Instrument Scientist and Lead Optical Engineer for the OSIRIS-REx Camera Suite. After receiving his PhD in 2003 from the College of Optical Sciences he worked as a research engineer and later as laboratory manager at Steward Observatory. There he worked on new technology for interferometric beam combiners for NASA’s Terrestrial Planet Finder and on the optical design of a number of ground-based astronomical instruments.  He then joined TeraVision Inc. as VP of Engineering where he helped develop Terahertz radar imaging and spectroscopy technology for security applications before returning to the University of Arizona as a part of the OSIRIS-REx team.