3169 Ostro
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3169 Ostro, provisional designation Template:Mp, is a Hungaria family asteroid from the innermost regions of the asteroid belt, approximately 5 kilometers in diameter.
The asteroid was discovered on 4 June 1981, by American astronomer Edward Bowell at Lowell's Anderson Mesa Station in Flagstaff, Arizona,[1] and named after planetary scientist Steven J. Ostro at JPL.[2]
Orbit and classification
Ostro is a member of the Hungaria family, which form the innermost dense concentration of asteroids in the Solar System. It orbits the Sun at a distance of 1.8–2.0 AU once every 2 years and 7 months (950 days). Its orbit has an eccentricity of 0.07 and an inclination of 25° with respect to the ecliptic.[3]
Physical characteristics
In the Tholen and SMASS taxonomy, Ostro is classified as a TS-type and Xe-type asteroid, respectively.[3] It has also been characterized as an E-type asteroid.[4]
According to the survey carried out by NASA's Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, Ostro measures 4.662 kilometers in diameter and its surface has an outstandingly high albedo of 0.960.[5] The Collaborative Asteroid Lightcurve Link derives an albedo of 0.5152 and a diameter of 5.27 kilometers with an absolute magnitude of 12.73.[4]
In May 2012, a rotational lightcurve of Ostro was obtained from photometric observations by American astronomer Brian Warner. Lightcurve analysis gave a well-defined rotation period of 6.503 hours with a brightness amplitude of 0.79 magnitude (U=3Script error: No such module "Check for unknown parameters".).[6]
Naming
This minor planet was named after American planetary scientist Steven J. Ostro at the Jet Propulsion Laboratory of the California Institute of Technology.[2] The approved naming citation was published by the Minor Planet Center on 14 April 1987 (M.P.C. 11749Script error: No such module "Check for unknown parameters".).[7]
References
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External links
- Lightcurve plot of 3169 Ostro, Palmer Divide Observatory, B. D. Warner (2012)
- Asteroid Lightcurve Database (LCDB), query form (info Template:Webarchive)
- Asteroids with Satellites, Robert Johnston, johnstonsarchive.net
- Dictionary of Minor Planet Names, Google books
- Asteroids and comets rotation curves, CdR – Observatoire de Genève, Raoul Behrend
- Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center
- Template:AstDys
- Template:PAGENAMEBASE at the JPL Small-Body DatabaseTemplate:EditAtWikidata
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