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Nanoradian ground-based astrometry, optical navigation, and artificial reference stars

Show simple item record Zhai, Chengxing Shao, Michael Biswas, Abhijit Ely, Todd Jacobs, Christopher Lazio, Joseph Martin-Mur, Tomas Owen, William Rud, Mike Saini, Navtej Sandhu, Jagmit Turyshev, Slava Werne, Thomas 2019-03-29T17:38:19Z 2019-03-29T17:38:19Z 2016-06-26
dc.identifier.citation SPIE Astronomical Telescopes + Instrumentation 2016, Edinburgh, Scotland, June 26 - July 1, 2016 en_US
dc.identifier.clearanceno 16-3153
dc.description.abstract Spacecraft carrying optical communication lasers can be treated as artificial stars, whose relative astrometry to Gaia reference stars provides spacecraft positions in the plane-of-sky for optical navigation. To be comparable to current Deep Space Network delta-Differential One-way Ranging measurements, thus sufficient for navigation, nanoradian optical astrometry is required. Here we describe our error budget, techniques for achieving nanoradian level ground-base astrometry, and preliminary results from a 1 m telescope. We discuss also how these spacecraft may serve as artificial reference stars for adaptive optics, high precision astrometry to detect exoplanets, and tying reference frames defined by radio and optical measurements. en_US
dc.description.sponsorship NASA/JPL en_US
dc.language.iso en_US en_US
dc.publisher Pasadena, CA: Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2016 en_US
dc.subject Ground-based astrometry en_US
dc.subject optical navigation en_US
dc.subject narrow angle astrometry en_US
dc.subject artificial reference stars en_US
dc.title Nanoradian ground-based astrometry, optical navigation, and artificial reference stars en_US
dc.type Presentation en_US

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