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Sizes, Shapes, and Satellites of Asteroids from Occultations

Published online by Cambridge University Press:  01 March 2016

David W. Dunham ,
David Herald ,
Steve Preston ,
Brad Timerson ,
Paul Maley ,
Eric Frappa ,
Tsutomu Hayamizu ,
John Talbot  and
Atila Poro
David W. Dunham
Affiliation:
International Occultation Timing Association (IOTA), 3719 Kara Ct., Greenbelt, MD 20770-3016, USA email: [email protected]
David Herald
Affiliation:
IOTA, 3 Lupin Place, Murrambateman, NSW 2582, Australia email: [email protected]
Steve Preston
Affiliation:
IOTA, 7640 NE 32nd St., Medina, WA 98039, USA email: [email protected]
Brad Timerson
Affiliation:
IOTA, 623 Bell Rd., Newark, NY 14513-8805, USA email: [email protected]
Paul Maley
Affiliation:
IOTA, 4535 Cedar Ridge Trail, Houston, TX 77059, USA email: [email protected]
Eric Frappa
Affiliation:
Euraster, 1B cours J. Bouchard, F-42000 St-Etienne, France email: [email protected]
Tsutomu Hayamizu
Affiliation:
Sendai Space Hall, 2133-6, Nagatoshi-Cho, Satsumasendai City, Kagoshima Prefecture, 895-0005, Japan email: [email protected]
John Talbot
Affiliation:
Royal Astronomical Society of New Zealand, Occultation Section, 3 Hughes St., Waikanae Beach, NZ email: [email protected]
Atila Poro
Affiliation:
IOTA/Middle East Section, Tehran, Iran email: [email protected]
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Abstract

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For 40 years, the sizes and shapes of many dozens of asteroids have been determined from observations of asteroidal occultations, and over a thousand high-precision positions of the asteroids relative to stars have been measured. Some of the first evidence for satellites of asteroids was obtained from the early efforts; now, the orbits and sizes of some satellites discovered by other means have been refined from occultation observations. Also, several close binary stars have been discovered, and the angular diameters of some stars have been measured from analysis of these observations. The International Occultation Timing Association (IOTA) coordinates this activity worldwide, from predicting and publicizing the events, to accurately timing the occultations from as many stations as possible, and publishing and archiving the observations.

Keywords

minor planetsasteroidsoccultations
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 10 , Issue S318: Asteroids: New Observations, New Models , August 2015 , pp. 177 - 180
Copyright
Copyright © International Astronomical Union 2016 

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