1671 Chaika

Main-belt asteroid December 2018 yes 1671 Chaika #D6D6D6 G. Neujmin Simeiz Obs. 3 October 1934 (1671) Chaika 1934 TD1930 WE1952 BX1955 XA1963 SO1971 RCA907 GM Valentina Tereshkova(Soviet cosmonaut) main-belt(middle)backgroundAstraea 27 April 2019 (JD 2458600.5) 0 87.90 yr (32,107 d) 3.2516 AU 1.9223 AU 2.5870 AU 0.2569 4.16 yr (1,520 d) 80.231° 0.2369 ms / day 3.9660° 177.17° 250.27° 7.478 0.728 km9.37 0.46 km10.222 0.048 km13.29 1.71 km 3.7718 0.0002 h 0.1200.1450.24630.291 S (assumed) 12.1 1671 Chaika, provisional designation 1934 TD, is a background asteroid from the Astraea region in the central asteroid belt, approximately 10 km mi off 1 us in diameter. It was discovered on 3 October 1934, by Soviet astronomer Grigory Neujmin at the Simeiz Observatory on the Crimean peninsula. The assumed S-type asteroid has a rotation period of 3.8 hours. It was named for Soviet cosmonaut Valentina Tereshkova. Orbit and classification According to a HCM-analysis by Nesvorný, Chaika is a non-family asteroid from the main belt's background population, while for Milani and Knežević, it is a member of the larger Astraea family, named after 5 Astraea. The Astraea family is not recognized by Nesvorný as a collisional asteroid family, who rather considers it an artifact in the model due to a resonant alignment. It orbits the Sun in the central asteroid belt at a distance of 1.9–3.3 AU once every 4 years and 2 months (1,520 days; semi-major axis of 2.59 AU). Its orbit has an eccentricity of 0.26 and an inclination of 4° with respect to the ecliptic. The asteroid was first observed at the Lowell Observatory in April 1907. The body's observation arc begins at the Tokyo Observatory 389 in November 1930, almost 4 years prior to its official discovery observation at Simeiz–Crimea. Naming This minor planet was named in honor of Soviet cosmonaut Valentina "Chaika" Tereshkova (born 1937). Tereshkova received the call sign "Chaika" – the Russian word for seagull – as she was the first woman to fly in space. The asteroid's name was proposed by the Institute of Theoretical Astronomy (ITA) in St Petersburg. The official 1671 naming citation was published by the Minor Planet Center on 1 June 1967 (M.P.C. 2740). Physical characteristics Chaika is an assumed, stony S-type asteroid. Rotation period In November 2005, a rotational lightcurve of Chaika was obtained from photometric observations by Italian astronomers Roberto Crippa, Federico Manzini and Josep Coloma. Lightcurve analysis gave a rotation period of 3.7718 0.0002 hours with a brightness variation of 0.18 magnitude (U=3). John Menke in collaboration with Walter Cooney and David Higgins determined a concurring period of 3.774 0.003 hours with an amplitude of 0.20 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, Chaika measures between 7.5 and 13.3 kilometers in diameter and its surface has an albedo between 0.12 and 0.29. The Collaborative Asteroid Lightcurve Link assumes a standard albedo for a stony asteroid of 0.20 and calculates a diameter of 11.30 kilometers based on an absolute magnitude of 12.1. References 30em 2018-10-18 last obs. JPL Small-Body Database Browser: 1671 Chaika (1934 TD) https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2001671 Jet Propulsion Laboratory 10 December 2018 Schmadel Lutz D. Dictionary of Minor Planet Names Springer Berlin Heidelberg 133 2007 978-3-540-00238-3 10.1007/978-3-540-29925-7_1672 (1671) Chaika 1671 Chaika (1934 TD) Minor Planet Center https://www.minorplanetcenter.net/db_search/show_object?object_id=1671 10 December 2018 Dictionary of Minor Planet Names – Addendum to Fifth Edition (2006–2008) 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 2009 https://cds.cern.ch/record/1339661 Asteroids and comets rotation curves – (1671) Chaika Behrend Raoul Geneva Observatory http://obswww.unige.ch/~behrend/page4cou.html#001671 10 December 2018 1 April 2019 https://web.archive.org/web/20190401181659/http://obswww.unige.ch/~behrend/page4cou.html#001671 dead Asteroid (1671) Chaika – Proper elements AstDyS-2, Asteroids – Dynamic Site https://newton.spacedys.com/astdys/index.php?n=1671&pc=1.1.6 10 December 2018 Asteroid 1671 Chaika Small Bodies Data Ferret https://sbntools.psi.edu/ferret/SimpleSearch/results.action?targetName=1671+Chaika 10 December 2018 https://web.archive.org/web/20181214071249/https://sbntools.psi.edu/ferret/SimpleSearch/results.action?targetName=1671+Chaika 14 December 2018 dead 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 1671 10 December 2018 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 (catalog) Sunao Hasegawa Thomas G. Müller Daisuke Kuroda Satoshi Takita Fumihiko Usui April 2013 The Asteroid Catalog Using AKARI IRC Slow-Scan Observations Publications of the Astronomical Society of Japan 65 2 11 2013PASJ...65...34H 10.1093/pasj/65.2.34 1210.7557 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 The Astrophysical Journal Letters 759 1 5 2012ApJ...759L...8M 10.1088/2041-8205/759/1/L8 1209.5794 6 A. K. Mainzer J. M. Bauer R. M. Cutri T. Grav E. A. Kramer J. R. Masiero C. R. Nugent S. M. Sonnett R. A. Stevenson E. L. Wright June 2016 NEOWISE Diameters and Albedos V1.0 https://sbnarchive.psi.edu/pds3/non_mission/EAR_A_COMPIL_5_NEOWISEDIAM_V1_0/data/neowise_mainbelt.tab NASA Planetary Data System EAR-A-COMPIL-5-NEOWISEDIAM-V1.0 2016PDSS..247.....M 10 December 2018 John Menke Walt Cooney John Gross Dirk Terrell David Higgins October 2008 Asteroid Lightcurve Analysis at Menke Observatory The Minor Planet Bulletin 35 4 155–160 1052-8091 2008MPBu...35..155M 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/20241208174218/http://obswww.unige.ch/~behrend/page_cou.html 8 December 2024 – Observatoire de Genève, Raoul Behrend Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center 1671 1670 Minnaert 1671 1672 Gezelle 001671 Category:Discoveries by Grigory Neujmin Category:Named minor planets Category:Valentina Tereshkova 19341003