1033 Simona

Stony Eoan asteroid from the outer regions of the asteroid belt October 2019 yes 1033 Simona #D6D6D6 4 September 1924 G. van Biesbroeck Yerkes Obs. (1033) Simona 1924 SM1937 CG Simona Van Biesbroeck(discoverer's daughter) main-beltEos 4 September 2017 (JD 2458000.5) 0 80.76 yr (29,498 days) 3.3538 AU 2.6474 AU 3.0006 AU 0.1177 5.20 yr (1,898 days) 268.12° 0.1896 ms / day 10.664° 188.95° 217.96° 19.195 0.194 km20.247 0.260 km20.29 6.38 km23.72 1.70 km24.71 km (derived) 9.6 h10.07 0.06 h 0.1050 (derived)0.12 0.100.125 0.0190.1725 0.02010.196 0.041 S 11.011.1 1033 Simona, provisional designation 1924 SM, 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, 1924 SM, 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 (1,898 days). 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 1937 CG 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 (U=1+). 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 (U=n.a.). Diameter and albedo According to the surveys carried out by the Japanese Akari satellite and the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Simona measures between 19.195 and 23.72 kilometers in diameter and its surface has an albedo between 0.12 and 0.196. The Collaborative Asteroid Lightcurve Link derives an albedo of 0.1050 and a diameter of 24.71 kilometers based on an absolute magnitude of 11.1. Naming This minor planet was named after the discoverer's daughter Simona Titus (née Van Biesbroeck). The official naming citation was published by Paul Herget in The Names of the Minor Planets (H 98). References 30em 2016-08-23 last obs. JPL Small-Body Database Browser: 1033 Simona (1924 SM) https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2001033 Jet Propulsion Laboratory 30 June 2017 Dictionary of Minor Planet Names – (1033) Simona Schmadel Lutz D. Springer Berlin Heidelberg 89 2007 978-3-540-00238-3 10.1007/978-3-540-29925-7_1034 (1033) Simona 1033 Simona (1924 SM) Minor Planet Center https://www.minorplanetcenter.net/db_search/show_object?object_id=1033 30 June 2017 Asteroids and comets rotation curves – (1033) Simona Behrend Raoul Geneva Observatory http://obswww.unige.ch/~behrend/page3cou.html#001033 30 June 2017 3 December 2002 https://web.archive.org/web/20021203214643/http://obswww.unige.ch/~behrend/page3cou.html#001033 dead 6 Joseph R. Masiero T. Grav A. K. Mainzer C. R. Nugent J. M. Bauer R. Stevenson S. Sonnett August 2014 Main-belt Asteroids with WISE/NEOWISE: Near-infrared Albedos http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2014ApJ...791..121M The Astrophysical Journal 791 2 11 2014ApJ...791..121M 10.1088/0004-637X/791/2/121 1406.6645 30 June 2017 1033 30 June 2017 6 Fumihiko Usui Daisuke Kuroda Thomas G. Müller Sunao Hasegawa Masateru Ishiguro Takafumi Ootsubo Daisuke Ishihara Hirokazu Kataza Satoshi Takita Shinki Oyabu Munetaka Ueno Hideo Matsuhara Takashi Onaka October 2011 Asteroid Catalog Using Akari: AKARI/IRC Mid-Infrared Asteroid Survey Publications of the Astronomical Society of Japan 63 5 1117–1138 2011PASJ...63.1117U 10.1093/pasj/63.5.1117 (online, AcuA catalog p. 153) 6 A. Mainzer T. Grav J. Masiero E. Hand J. Bauer D. Tholen R. S. McMillan T. Spahr R. M. Cutri E. Wright J. Watkins W. Mo C. Maleszewski November 2011 NEOWISE Studies of Spectrophotometrically Classified Asteroids: Preliminary Results The Astrophysical Journal 741 2 25 2011ApJ...741...90M 10.1088/0004-637X/741/2/90 1109.6407 6 C. R. Nugent A. Mainzer J. Masiero J. Bauer R. M. Cutri T. Grav E. Kramer S. Sonnett R. Stevenson E. L. Wright December 2015 NEOWISE Reactivation Mission Year One: Preliminary Asteroid Diameters and Albedos http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2015ApJ...814..117N The Astrophysical Journal 814 2 13 2015ApJ...814..117N 10.1088/0004-637X/814/2/117 1509.02522 30 June 2017 6 Heath Shipley Alex Dillard Jordan Kendall Matthew Reichert Jason Sauppe Nelson Shaffer Thomas Kleeman Richard Ditteon September 2008 Asteroid Lightcurve Analysis at the Oakley Observatory - September 2007 http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2008MPBu...35...99S The Minor Planet Bulletin 35 3 99–102 1052-8091 2008MPBu...35...99S 30 June 2017 External links Asteroid Lightcurve Database (LCDB), query form (info https://web.archive.org/web/20171216050541/http://www.minorplanet.info/lightcurvedatabase.html 16 December 2017 ) Dictionary of Minor Planet Names, Google books Asteroids and comets rotation curves, CdR https://web.archive.org/web/20160729213840/http://obswww.unige.ch/~behrend/page_cou.html 29 July 2016 – Observatoire de Genève, Raoul Behrend Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center 1033 1032 Pafuri 1033 1034 Mozartia 001033 Category:Discoveries by George Van Biesbroeck Category:Named minor planets 19240904