1499 Pori

Asteroid October 2019 yes 1499 Pori #D6D6D6 Y. Väisälä Turku Obs. 16 October 1938 (1499) Pori 1938 UF1951 RU 11959 NA Pori (Finnish city) main-belt(middle)Eunomia 4 September 2017 (JD 2458000.5) 0 74.34 yr (27,154 days) 3.1679 AU 2.1729 AU 2.6704 AU 0.1863 4.36 yr (1,594 days) 80.655° 0.2259 ms / day 12.180° 239.62° 74.926° 13.37 0.89 km13.995 0.401 km14.896 0.348 km14.90 0.35 km15.22 km (calculated) 3.3557 0.0004 h3.36 0.01 h3.36 0.01 h3.36 0.05 h 0.21 (assumed)0.240 0.0330.2986 0.05810.330 0.046 S (assumed) 11.2011.3011.4 1499 Pori, provisional designation 1938 UF, is a stony Eunomian asteroid from the central regions of the asteroid belt, approximately 15 kilometers in diameter. It was discovered on 16 October 1938, by Finnish astronomer Yrjö Väisälä at the Turku Observatory in southwest Finland. The asteroid was named after the Finnish city of Pori. Orbit and classification Pori is a member of the Eunomia family (502), a prominent family of stony asteroids and the largest one in the intermediate main belt with more than 5,000 members.23 It orbits the Sun in the central main belt at a distance of 2.2–3.2 AU once every 4 years and 4 months (1,594 days). Its orbit has an eccentricity of 0.19 and an inclination of 12° with respect to the ecliptic. The body's observation arc begins with its official discovery observation at Turku in October 1938. Physical characteristics Pori is an assumed S-type asteroid which corresponds to the Eunomia family's overall spectral type.23 Rotation period Several rotational lightcurves of Pori have been obtained from photometric observations since 2003. In August 2003, photometric observations made by Robert Stephens at the Santana Observatory (646) in California, gave a synodic rotation period of 3.36 hours. The lightcurve shows a brightness variation of 0.28 in magnitude (U=3). In August 2016, another lightcurve by Maurice Audejean gave a refined rotation period of 3.3557 hours with an amplitude of 0.34 magnitude (U=3). 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, Pori measures between 13.37 and 14.90 kilometers in diameter and its surface has an albedo between 0.240 and 0.330. The Collaborative Asteroid Lightcurve Link assumes a standard albedo of 0.21 – derived from 15 Eunomia, the largest member and namesake of the Eunomia family – and calculates a diameter of 15.22 kilometers based on an absolute magnitude of 11.4. Naming This minor planet was named after the city of Pori, located near the Gulf of Bothnia in Finland. The official 1499 naming citation was published by the Minor Planet Center on 20 February 1976 (M.P.C. 3928). References 30em 2016-12-14 last obs. JPL Small-Body Database Browser: 1499 Pori (1938 UF) https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2001499 Jet Propulsion Laboratory 27 September 2017 Dictionary of Minor Planet Names https://archive.org/details/dictionaryminorp00schm limited (1499) Pori Schmadel Lutz D. Springer Berlin Heidelberg 119 2007 978-3-540-00238-3 10.1007/978-3-540-29925-7_1500 1499 Pori (1938 UF) Minor Planet Center https://www.minorplanetcenter.net/db_search/show_object?object_id=1499 27 September 2017 Dictionary of Minor Planet Names – Addendum to Fifth Edition (2006–2008) 2009 https://archive.org/details/dictionaryminorp2008schm limited Appendix – Publication Dates of the MPCs Schmadel Lutz D. Springer Berlin Heidelberg 221 978-3-642-01964-7 10.1007/978-3-642-01965-4 Asteroids and comets rotation curves – (1499) Pori Behrend Raoul Geneva Observatory http://obswww.unige.ch/~behrend/page4cou.html#001499 27 September 2017 3 August 2003 https://web.archive.org/web/20030803183423/http://obswww.unige.ch/~behrend/page4cou.html#001499 dead Asteroid 1499 Pori – Nesvorny HCM Asteroid Families V3.0 Small Bodies Data Ferret https://sbntools.psi.edu/ferret/SimpleSearch/results.action?targetName=1499+Pori#Asteroid%201499%20PoriEAR-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 1499 27 September 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 27 September 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 Stephens, Robert D. March 2004 Photometry of 683 Lanzia, 1101 Clematis, 1499 Pori, 1507 Vaasa, and 3893 DeLaeter http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2004MPBu...31....4S The Minor Planet Bulletin 31 1 4–6 1052-8091 2004MPBu...31....4S 27 September 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 1499 1498 Lahti 1499 1500 Jyväskylä 001499 Category:Discoveries by Yrjö Väisälä Category:Named minor planets 19381016