2014 Vasilevskis
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2014 Vasilevskis, provisional designation Template:Mp, is a stony Phocaean asteroid from the inner regions of the asteroid belt, approximately Script error: No such module "convert". in diameter. It was discovered on 2 May 1973, by American astronomer Arnold Klemola at the U.S. Lick Observatory on Mount Hamilton, California. It was named after Stanislavs Vasilevskis, staff member at the discovering observatory.[1][2]
Orbit and classification
Vasilevskis is a member of the Phocaea family (701Script error: No such module "Check for unknown parameters".),[3] a group of asteroids with similar orbital characteristics, named after the family's namesake, 25 Phocaea. It orbits the Sun in the inner main-belt at a distance of 1.7–3.1 AU once every 3 years and 9 months (1,360 days). Its orbit has an eccentricity of 0.29 and an inclination of 21° with respect to the ecliptic.[4] No precoveries were taken prior to its discovery.[2]
Physical characteristics
Vasilevskis has been characterized as a common S-type asteroid.[5]
Rotation period
In May 2014, a photometric lightcurve analysis by American astronomer Robert Stephens at the Center for Solar System Studies (U81Script error: No such module "Check for unknown parameters".), California, gave a rotation period of Script error: No such module "val". hours with a brightness variation of 0.26 in magnitude (U=3-Script error: No such module "Check for unknown parameters".).[6]
Alternative measurements also made in 2014, include an observation by astronomer René Roy, which rendered a period of Script error: No such module "val". hours with an amplitude of 0.31 in magnitude (U=2Script error: No such module "Check for unknown parameters".),[7] and an analysis at the Burleith Observatory (I13Script error: No such module "Check for unknown parameters".), with a period of Script error: No such module "val". hours, or 49% of the first period (U=2-Script error: No such module "Check for unknown parameters".).[8]
Diameter and albedo
According to the space-based surveys carried out by the Japanese Akari satellite and the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, the asteroid measures between 9.1 and 11.8 kilometers in diameter, and its surface has an albedo between 0.265 and 0.451.[9][10] The Collaborative Asteroid Lightcurve Link assumes an albedo 0.23 – derived from 25 Phocaea, the family's largest member and namesake – and calculates a diameter of 9.6 kilometers with an absolute magnitude of 12.3.[5]
Naming
This minor planet was named after astronomer Stanislavs Vasilevskis (died 1988), long-time staff member at the discovering Lick Observatory from 1949 to 1974.[1]
A specialist for astrometric instrumentation, in particular the computational analysis of the position of astronomical objects from photographic plates, he has also performed broad astronomical surveys to obtain the parallax and proper motion of stars.[1] The official Template:MoMP was published by the Minor Planet Center on 30 June 1977 (M.P.C. 4190Script error: No such module "Check for unknown parameters".).[11]
References
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