1202 Marina

Main-belt asteroid October 2019 yes 1202 Marina #D6D6D6 G. Neujmin Simeiz Obs. 13 September 1931 (1202) Marina 1931 RL1931 TH1980 BL 3A924 WGA924 YA Marina Lavrova–Berg(Soviet scientist) main-belt(outer)Hilda 4 September 2017 (JD 2458000.5) 0 92.99 yr (33,964 days) 4.6621 AU 3.3339 AU 3.9980 AU 0.1661 7.99 yr (2,920 days) 346.16° 0.1233 ms / day 3.3338° 49.880° 307.45° 0.7908 AU 54.93 2.6 km55.07 km (derived)63.76 1.28 km 9.45 h9.571 0.0042 h 0.026 0.0010.0337 0.0030.045 (derived) Tholen P 9.756 0.001 (R)10.010.09 0.2310.2810.60 1202 Marina (provisional designation 1931 RL) is a primitive Hildian background asteroid from the outermost regions of the asteroid belt, approximately 55 kilometers in diameter. It was discovered by Grigory Neujmin at the Simeiz Observatory in 1931, and later named in honor of Marina Lavrova–Berg, a scientific collaborator at Pulkovo Observatory, who died at an early age during WWII. Discovery Marina was discovered on 13 September 1931, by Soviet astronomer Grigory Neujmin at the Simeiz Observatory on the Crimean peninsula. Two nights later, it was independently discovered by German astronomer Karl Reinmuth at the Heidelberg Observatory on 15 September 1931. The Minor Planet Center only recognizes the first discoverer. The asteroid was first observed as A924 WG at Heidelberg Observatory in November 1924. The body's observation arc also begins at Heidelberg in January 1925, more than 6 years prior to its official discovery observation at Simeiz. Orbit and classification Marina is a non-family background asteroid of the Hilda group, located in the outermost region of the main-belt and in a 3:2 resonance with the giant planet Jupiter. It orbits the Sun at a distance of 3.3–4.7 AU once every 7 years and 12 months (2,920 days; semi-major axis of 4.00 AU). Its orbit has an eccentricity of 0.17 and an inclination of 3° with respect to the ecliptic. Physical characteristics In the Tholen classification, Marina is a primitive P-type asteroid. Rotation period In the 1990s, a rotational lightcurve of Marina was obtained from a survey of Hildian asteroids by European astronomers. Lightcurve analysis gave a well-defined rotation period of 9.45 hours with a brightness variation of 0.29 magnitude (U=3). In October 2010, photometric observations in the R-band by astronomers at the Palomar Transient Factory in California gave a similar period of 9.571 hours and an amplitude of 0.09 (U=1). Diameter and albedo According to the surveys carried out by the Infrared Astronomical Satellite IRAS and the Japanese Akari satellite, Marina measures 54.93 and 63.76 kilometers in diameter and its surface has a low albedo of 0.0337 and 0.026, respectively. The Collaborative Asteroid Lightcurve Link derives an albedo of 0.045 and a diameter of 55.07 kilometers based on an absolute magnitude of 10.28. Naming This minor planet was named after Marina Davydovna Lavrova–Berg (1898–1943), a scientific collaborator who worked at the Pulkovo Observatory near Saint Petersburg during 1931–1942. References 30em 2017-11-25 last obs. JPL Small-Body Database Browser: 1202 Marina (1931 RL) https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2001202 Jet Propulsion Laboratory 5 January 2018 Schmadel Lutz D. Dictionary of Minor Planet Names Springer Berlin Heidelberg 100 2007 978-3-540-00238-3 10.1007/978-3-540-29925-7_1203 (1202) Marina 1202 Marina (1931 RL) Minor Planet Center https://www.minorplanetcenter.net/db_search/show_object?object_id=1202 5 January 2018 Asteroid 1202 Marina – Proper Elements AstDyS-2, Asteroids – Dynamic Site https://newton.spacedys.com/astdys/index.php?pc=1.1.6&n=1202 28 October 2019 1202 5 January 2018 E. F. Tedesco P. V. Noah M. Noah S. D. Price October 2004 IRAS Minor Planet Survey V6.0 https://sbnarchive.psi.edu/pds3/iras/IRAS_A_FPA_3_RDR_IMPS_V6_0/data/diamalb.tab NASA Planetary Data System 12 IRAS-A-FPA-3-RDR-IMPS-V6.0 2004PDSS...12.....T 22 October 2019 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 M. Dahlgren J. F. Lahulla C.-I. Lagerkvist J. Lagerros S. Mottola A. Erikson M. Gonano-Beurer M. Di Martino June 1998 A Study of Hilda Asteroids. V. Lightcurves of 47 Hilda Asteroids http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=1998Icar..133..247D Icarus 133 2 247–285 1998Icar..133..247D 10.1006/icar.1998.5919 5 January 2018 6 Adam Waszczak Chan-Kao Chang Eran O. Ofek Russ Laher Frank Masci David Levitan Jason Surace Yu-Chi Cheng Wing-Huen Ip Daisuke Kinoshita George Helou Thomas A. Prince Shrinivas Kulkarni September 2015 Asteroid Light Curves from the Palomar Transient Factory Survey: Rotation Periods and Phase Functions from Sparse Photometry http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2015AJ....150...75W The Astronomical Journal 150 3 35 2015AJ....150...75W 10.1088/0004-6256/150/3/75 1504.04041 8342929 5 January 2018 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 53493339 5 January 2018 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 1202 1201 Strenua 1202 1203 Nanna 001202 Category:Discoveries by Grigory Neujmin Category:Named minor planets 19310913