1033 Simona
1033 Simona, provisional designation, is a stony Eoan asteroid from the outer regions of the asteroid belt, approximately 20 kilometers in diameter. The asteroid was discovered by George Van Biesbroeck in 1924, who named it after his daughter Simona.
Discovery
Simona was discovered on 4 September 1924, by Belgian–American astronomer George Van Biesbroeck at Yerkes Observatory in Wisconsin, United States. On the following night, it was independently discovered by Soviet astronomer Sergey Belyavsky at Simeiz Observatory on the Crimean peninsula. As an anomaly, the asteroid's astrometric discovery record from 1924,, is missing in the observational history table provided by the Minor Planet Center. The first given observation is from 30 August 1938, made at Heidelberg Observatory.Orbit and classifications
Simona is a member of the Eos family, a collisional outer-belt family of untypical stony asteroids. It orbits the Sun at a distance of 2.6–3.4 AU once every 5 years and 2 months. Its orbit has an eccentricity of 0.12 and an inclination of 11° with respect to the ecliptic. The body's observation arc begins almost 13 years after its official discovery observation, with its identification at Uccle Observatory in February 1937.Physical characteristics
Lightcurves
In September 2007, photometric observations at the Oakley Observatory in Indiana, United States, gave a fragmentary lightcurve with a rotation period of 10.07 hours and a brightness variation of 0.15 magnitude.Another fragmentary lightcurve of Simona was obtained by French amateur astronomer René Roy in August 2012. Lightcurve analysis gave a period of 9.6 hours with an amplitude of 0.02 magnitude.