1364 Safara

Main-belt asteroid October 2019 yes 1364 Safara #D6D6D6 001364-asteroid shape model (1364) Safara.png Modelled shape of Safara from its lightcurve L. Boyer Algiers Obs. 18 November 1935 (1364) Safara 1935 VB1932 EK André Safar(discoverer's acquaintance) main-belt(outer)Eos 4 September 2017 (JD 2458000.5) 0 85.64 yr (31,279 days) 3.2114 AU 2.8133 AU 3.0124 AU 0.0661 5.23 yr (1,910 days) 8.7502° 0.1885 ms / day 11.488° 63.986° 220.38° 21.197 0.201 km21.508 0.266 km24.35 0.47 km25.73 km (calculated)32.63 0.46 km 7.14908 0.0004 h7.25 0.05 hlightcurveplot-PDO 0.087 0.0120.14 (assumed)0.173 0.0070.2231 0.0149 LS (assumed) 10.6010.64 0.1910.70 1364 Safara, incorrectly designated 1935 VB, is an Eoan asteroid from the outer regions of the asteroid belt, approximately 25 kilometers in diameter. It was discovered on 18 November 1935, by French astronomer Louis Boyer at the Algiers Observatory in Algeria, North Africa. The asteroid should have been designated 1935 WB, as the letter "V" only covers discoveries made during 1–15 November. It was named after André Safar, presumably an acquaintance of the discoverer from Algiers. Orbit and classification Safara is a member the Eos family (606), the largest asteroid family of the outer main belt consisting of nearly 10,000 asteroids.23 It orbits the Sun at a distance of 2.8–3.2 AU once every 5 years and 3 months (1,910 days; semi-major axis of 3.01 AU). Its orbit has an eccentricity of 0.07 and an inclination of 11° with respect to the ecliptic. The asteroid was first identified as 1932 EK at Heidelberg Observatory in March 1932. The body's observation arc begins at Algiers with its official discovery observation in November 1935. Physical characteristics The Collaborative Asteroid Lightcurve Link (CALL) assumes Safara to be a stony S-type asteroid, while it has also characterized as a rare L-type asteroid by Pan-STARRS photometric survey. The overall spectral type of the Eos family is that of a K-type.23 Rotation period and poles In February 2002, a rotational lightcurve of Safara was obtained from photometric observations by American astronomer Brian Warner at his Palmer Divide Observatory (716) in Colorado. Lightcurve analysis gave a rotation period of 7.25 hours with a brightness amplitude of 0.36 magnitude (U=3-).lightcurveplot-PDO In 2018, the body's lightcurve has also been modeled in a focused study of Eoan asteroids. Modeling gave a period of 7.14908 hours and two spin axis in ecliptic coordinates (λ, β) of (197.0°, 32.0°) and (10.0°, 12.0°). 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, Safara measures between 21.197 and 32.63 kilometers in diameter and its surface has an albedo between 0.087 and 0.2231. CALL assumes an albedo of 0.14 – derived from 221 Eos, the family's largest member and namesake – and calculates a diameter of 25.73 kilometers based on an absolute magnitude of 10.7. Naming This minor planet was named after André Safar, presumably an acquaintance of the discoverer from Algiers. The official naming citation was mentioned in The Names of the Minor Planets by Paul Herget in 1955 (H 124). Notes lightcurveplot-PDO Lightcurve plot of 1364 Safara, Palmer Divide Observatory, Brian D. Warner (2010) Summary figures at the LCDB References 30em 2017-10-29 last obs. JPL Small-Body Database Browser: 1364 Safara (1935 VB) https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2001364 Jet Propulsion Laboratory 15 November 2017 Schmadel Lutz D. Dictionary of Minor Planet Names Springer Berlin Heidelberg 111 2007 978-3-540-00238-3 10.1007/978-3-540-29925-7_1365 (1364) Safara 1364 Safara (1935 VB) Minor Planet Center https://www.minorplanetcenter.net/db_search/show_object?object_id=1364 15 November 2017 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 15 November 2017 Asteroid 1364 Safara – Nesvorny HCM Asteroid Families V3.0 Small Bodies Data Ferret https://sbntools.psi.edu/ferret/SimpleSearch/results.action?targetName=1364+Safara#Asteroid%201364%20SafaraEAR-A-VARGBDET-5-NESVORNYFAM-V3.0 26 October 2019 October 2026 InternetArchiveBot D. Nesvorný M. Broz V. Carruba December 2014 Identification and Dynamical Properties of Asteroid Families Asteroids IV 297–321 2015aste.book..297N 10.2458/azu_uapress_9780816532131-ch016 1502.01628 9780816532131 1364 15 November 2017 6 Joseph R. Masiero A. K. Mainzer T. Grav J. M. Bauer R. M. Cutri C. Nugent M. S. Cabrera November 2012 Preliminary Analysis of WISE/NEOWISE 3-Band Cryogenic and Post-cryogenic Observations of Main Belt Asteroids http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2012ApJ...759L...8M The Astrophysical Journal Letters 759 1 5 2012ApJ...759L...8M 10.1088/2041-8205/759/1/L8 1209.5794 15 November 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 free (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 Warner, Brian D. July 2010 Asteroid Lightcurve Analysis at the Palmer Divide Observatory: 2009 December - 2010 March http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2010MPBu...37..112W The Minor Planet Bulletin 37 3 112–118 1052-8091 2010MPBu...37..112W 15 November 2017 6 J. Hanus M. Delbo' V. Alí-Lagoa B. Bolin R. Jedicke J. Durech H. Cibulková P. Pravec P. Kusnirák R. Behrend F. Marchis P. Antonini L. Arnold M. Audejean M. Bachschmidt L. Bernasconi L. Brunetto S. Casulli R. Dymock N. Esseiva M. Esteban O. Gerteis H. de Groot H. Gully Hiroko Hamanowa Hiromi Hamanowa P. Krafft M. Lehký F. Manzini J. Michelet E. Morelle J. Oey F. Pilcher F. Reignier R. Roy P. A. Salom B. D. Warner January 2018 Spin states of asteroids in the Eos collisional family Icarus 299 84–96 2018Icar..299...84H 10.1016/j.icarus.2017.07.007 1707.05507 6 Peter Veres Robert Jedicke Alan Fitzsimmons Larry Denneau Mikael Granvik Bryce Bolin Serge Chastel Richard J. Wainscoat William S. Burgett Kenneth C. Chambers Heather Flewelling Nick Kaiser Eugen A. Magnier Jeff S. Morgan Paul A. Price John L. Tonry Christopher Waters November 2015 Absolute magnitudes and slope parameters for 250,000 asteroids observed by Pan-STARRS PS1 - Preliminary results http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2015Icar..261...34V Icarus 261 34–47 2015Icar..261...34V 10.1016/j.icarus.2015.08.007 1506.00762 15 November 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 1364 1363 Herberta 1364 1365 Henyey 001364 Category:Discoveries by Louis Boyer (astronomer) Category:Named minor planets 001364 19351118