1504 Lappeenranta

Main-belt asteroid October 2019 yes 1504 Lappeenranta #D6D6D6 L. Oterma Turku Obs. 23 March 1939 (1504) Lappeenranta 1939 FM Lappeenranta(Finnish city) main-belt(inner)background 4 September 2017 (JD 2458000.5) 0 78.15 yr (28,544 days) 2.7784 AU 2.0207 AU 2.3995 AU 0.1579 3.72 yr (1,358 days) 67.942° 0.2652 ms / day 11.049° 94.866° 51.074° 11.336 0.149 km11.931 0.069 km12.42 0.48 km12.65 km (derived)12.70 1.2 km13.35 2.34 km 8 h (dated)10.44 h15.16 0.01 h15.190 0.009 hlcdb-Garlitz-2013 0.1765 (derived)0.1939 0.0420.1997 0.03120.213 0.0200.270 0.0340.434 0.184 Tholen SSB–V 0.880U–B 0.418 10.9011.47 0.3211.8811.99 1504 Lappeenranta (provisional designation 1939 FM) is a stony background asteroid from the inner regions of the asteroid belt, approximately 12 kilometers in diameter. It was discovered on 23 March 1939, by Finnish astronomer Liisi Oterma at the Iso-Heikkilä Observatory, and named after the city of Lappeenranta in Finland. Orbit and classification Lappeenranta is a non-family asteroid from the main belt's background population. It orbits the Sun in the inner asteroid belt at a distance of 2.0–2.8 AU once every 3 years and 9 months (1,358 days). Its orbit has an eccentricity of 0.16 and an inclination of 11° with respect to the ecliptic. The body's observation arc begins four nights prior to its official discovery observation at Turku. Physical characteristics In the Tholen classification, Lappeenranta is a common S-type asteroid. Pan-STARRS photometric survey has also characterized it as an S-type. Rotation period Lappeenranta has an ambiguous rotation period. Recent photometric observations gave a period of 15.16 and 15.190 hours with a brightness variation of 0.09 and 0.22 magnitude, respectively (U=2/2+),lcdb-Garlitz-2013 while Richard Binzel obtained a period of 10.44 hours and an amplitude of 0.29 magnitude in the mid-1980s (U=2). An alternative period of 8 hours, which was measured by Laurent Bernasconi and Fernand van den Abbeel (2002) as well as by René Roy (2006), has been superseded (U=1/1). Diameter and albedo According to the surveys carried out by the Infrared Astronomical Satellite IRAS, the Japanese Akari satellite and the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Lappeenranta measures between 11.336 and 13.35 kilometers in diameter and its surface has an albedo between 0.1939 and 0.434. The Collaborative Asteroid Lightcurve Link derives an albedo of 0.1765 and a diameter of 12.65 kilometers based on an absolute magnitude of 11.99. Naming This minor planet was named after the city of Lappeenranta in southeastern Finland. The official 1504 naming citation was published by the Minor Planet Center on 20 February 1976 (M.P.C. 3928). Notes lcdb-Garlitz-2013 Garlitz (2013) web: observations from February 2013 gave a rotation period 15.190 0.009 hours with a brightness amplitude of 0.22 mag. Summary figures for (1504) Lappeenranta at LCDB References 30em 2017-07-05 last obs. JPL Small-Body Database Browser: 1504 Lappeenranta (1939 FM) https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2001504 Jet Propulsion Laboratory 18 October 2017 Dictionary of Minor Planet Names – (1504) Lappeenranta Schmadel Lutz D. Springer Berlin Heidelberg 120 2007 978-3-540-00238-3 10.1007/978-3-540-29925-7_1505 (1504) Lappeenranta 1504 Lappeenranta (1939 FM) Minor Planet Center https://www.minorplanetcenter.net/db_search/show_object?object_id=1504 18 October 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 – (1504) Lappeenranta Behrend Raoul Geneva Observatory http://obswww.unige.ch/~behrend/page4cou.html#001504 18 October 2017 3 August 2003 https://web.archive.org/web/20030803183423/http://obswww.unige.ch/~behrend/page4cou.html#001504 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 18 October 2017 Asteroid 1504 Lappeenranta – Proper Elements AstDyS-2, Asteroids – Dynamic Site https://newton.spacedys.com/astdys/index.php?pc=1.1.6&n=1504 29 October 2019 1504 18 October 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 18 October 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) 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 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 Binzel, R. P. October 1987 A photoelectric survey of 130 asteroids http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=1987Icar...72..135B Icarus 72 1 135–208 0019-1035 1987Icar...72..135B 10.1016/0019-1035(87)90125-4 18 October 2017 Tom Polakis Brian A. Skiff October 2017 Lightcurve Analysis for 341 California, 594 Mireille, 1115 Sabauda 1504 Lappeenranta, and 1926 Demiddelaer http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2017MPBu...44..299P The Minor Planet Bulletin 44 4 299–302 1052-8091 2017MPBu...44..299P 18 October 2017 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 18 October 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 1504 1503 Kuopio 1504 1505 Koranna 001504 Category:Discoveries by Liisi Oterma Category:Named minor planets 001504 19390323