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High Fidelity Reconstructed Attitude Estimation Using Cassini Flight Telemetry

Show simple item record Burk, Thomas A. 2019-07-02T18:34:05Z 2019-07-02T18:34:05Z 2018-01-01
dc.identifier.citation AIAA Science and Technology Forum and Exposition (AIAA SciTech 2018), Kissimmee, Florida, January 8-12, 2018 en_US
dc.identifier.clearanceno CL#17-6210
dc.description.abstract The Cassini Grand Finale capped the 20 year Cassini mission with 22 one-week-long orbits each with periapsis inside the ring plane just above Saturn’s cloud tops. One aspect of these remarkable orbits was unprecedented measurements of Saturn’s magnetic field very close to the planet. Processing this data required precise estimates of Cassini’s orientation during these ring plane crossings. These periods coincided with planned gyro-only attitude propagation due to the enormous bright bodies in the star tracker field-of-view. This paper describes how attitude reacquisition information, when the star tracker reacquires an absolute inertial reference, can be used to correct errors introduced during gyro-only propagation. The resulting high fidelity reconstruction significantly improves the extraction of Saturn’s magnetic field from the raw data obtained during gyro-only periods when Cassini’s changing orientation makes precise attitude estimation a challenge. 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 High Fidelity Reconstructed Attitude Estimation Using Cassini Flight Telemetry en_US
dc.type Preprint en_US

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