Astronomy and Astrophysics – Astronomy
Scientific paper
Jun 1994
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994aj....107.2295o&link_type=abstract
The Astronomical Journal (ISSN 0004-6256), vol. 107, no. 6, p. 2295-2298
Astronomy and Astrophysics
Astronomy
4
Asteroids, Astrometry, Astronomical Observatories, Charge Coupled Devices, Galileo Spacecraft, Astronomical Catalogs, Cartesian Coordinates, Flyby Missions
Scientific paper
The overlapping plates method has been applied to crossing-point Charge Coupled Device (CCD) observations of minor planet 243 Ida to produce absolute position measurements precise to better than 0.1 sec and differential position measurements precise to better than 0.06 sec. Although these observations numbered only 17 out of the 520 that produced the final ground-based Ida ephemeris for the Galileo spacecraft flyby, their inclusion decreased Ida's downtrack error from 78 to 60 km and its out-of-plane error from 58 to 44 km.
Owen William M. Jr.
Yeomans Donald Keith
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