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Cassini Orbit Determination Operations Through The Final Titan Flybys and The Mission Grand Finale (February 2016 - September 2017)

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dc.contributor.author Bellerose, Julie
dc.contributor.author Roth, Duane
dc.contributor.author Boone, Dylan
dc.contributor.author Tarzi, Zahi
dc.contributor.author Ionasescu, Rodica
dc.contributor.author Criddle, Kevin
dc.date.accessioned 2020-04-22T02:53:26Z
dc.date.available 2020-04-22T02:53:26Z
dc.date.issued 2018-02-01
dc.identifier.citation American Astronautical Society (AAS) Guidance & Control Conference (GNC), Colorado Springs and Breckenridge, Colorado, Feb 1-7, 2018 en_US
dc.identifier.clearanceno 18-0471
dc.identifier.uri http://hdl.handle.net/2014/48036
dc.description.abstract This paper reports on the orbit determination performance for the final 1.5 years of the Cassini Solstice mission, including the mission’s Grand Finale. During this period, Cassini encountered its final eleven targeted flybys of Titan (T116-T126) and executed its last 62 orbits of Saturn. In these final months, the spacecraft’s inclination was gradually raised from near equatorial to near 63 degrees, critical inclination, to prevent the line of apsides from rotating out of Titan’s orbital plane. Critical inclination enables continued Titan flybys, the last of which places Cassini on an impact trajectory with Saturn, thereby satisfying planetary protection requirements. In this reporting period, the orbit period moved from 16 days to nearly 32 and, for the final 6 months, it was brought down to less than 7 days. By design, the spacecraft entered the Saturn atmosphere on its final orbit and vaporized on September 15, 2017. We also report on the particular challenges associated with a stellar occultation, a flyby of Saturn’s rocks, and the last revolutions of the mission’s Grand Finale. 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, 2018 en_US
dc.title Cassini Orbit Determination Operations Through The Final Titan Flybys and The Mission Grand Finale (February 2016 - September 2017) en_US
dc.type Preprint en_US


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