Astronomy and Astrophysics – Astronomy
Scientific paper
Apr 1982
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982ncgb.conf...57h&link_type=abstract
IN: Workshop on the Need for Coordinated Ground-Based Observations of Halley's Comet, Paris, France, April 29, 30, 1982, Proceed
Astronomy and Astrophysics
Astronomy
Astrometry, Giotto Mission, Halley'S Comet, Space Navigation, Spacecraft Trajectories, Linear Systems, Orbit Calculation, Orbital Maneuvers
Scientific paper
Since the Giotto spacecraft cannot employ its on-board camera for targeting, earth based astrometric measurements of the comet position will have to be used for the spacecraft navigation. Consequently, Halley Watch needs to establish operational data processing and communication between the spacecraft control centers and the observers providing standardized astrometric observations on a coordinated schedule. Also noted is the importance of an early recovery of the comet after perihelion passage for the navigation of the spacecraft. Information concerning the observation errors and the location of the nucleus in the comet's coma would substantiate modelling of the cometary motion.
Hechler Friedhelm
Hechler Martin
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