14627 Emilkowalski

Main-belt asteroid October 2019 yes 14627 Emilkowalski #D6D6D6 014627-asteroid shape model (14627) Emilkowalski.png Emilkowalski modeled from its lightcurve R. A. Kowalski Quail Hollow Obs. 761 7 November 1998 (14627) Emilkowalski 1998 VA Emil Kowalski(discoverer's family) main-belt(middle)Emilkowalski24 4 September 2017 (JD 2458000.5) 0 62.93 yr (22,985 days) 2.9885 AU 2.2112 AU 2.5998 AU 0.1495 4.19 yr (1,531 days) 151.54° 0.2351 ms / day 17.751° 41.443° 44.474° 6.98 2.55 km7.105 0.106 km7.84 2.33 km10.61 km (calculated) 11.131 0.005 hlcdb-Pravec11.131 h 0.057 (assumed)0.09 0.100.120 0.1080.201 0.017 CDLS 13.113.38 (R)13.613.713.8514.19 0.75 14627 Emilkowalski (prov. designation: 1998 VA) is a stony asteroid from the central region of the asteroid belt, approximately 7 km mi off 2 us in diameter. It was discovered on 7 November 1998, by American astronomer Richard Kowalski at the Quail Hollow Observatory (761) in Zephyrhills, Florida, United States. The asteroid is the namesake of the recently formed Emilkowalski family of asteroids. It was named after Emil Kowalski, mentor of the discoverer. Orbit and classification Emilkowalski orbits the Sun in the central main-belt at a distance of 2.2–3.0 AU once every 4 years and 2 months (1,531 days). Its orbit has an eccentricity of 0.15 and an inclination of 18° with respect to the ecliptic. The first unused observation at Palomar Observatory (DSS) dates back to 1953. The first used precovery was taken at Siding Spring Observatory in 1975, extending the asteroid's observation arc by 23 years prior to its discovery. Emilkowalski family Emilkowalski is the biggest member and namesake of a collisional group of asteroids, that resulted from the destruction of a larger parent body. The disruption happened approximately 220,000 years ago and it is one of the most recent asteroid breakups discovered in the main belt. The recently formed stony Emilkowalski family (family identification number: 523) consist of only 4 identified members.8,24 The other members are 126761 (126761) 2002 DW 10, 224559 (224559) 2005 WU 178 and 256124 (256124) 2006 UK 337. Naming This minor planet is named after American Emil Kowalski (1918–1994) from Syosset, New York, who inspired the discoverer of space science when he was still a child. The approved naming citation was published by the Minor Planet Center on 4 August 2001 (M.P.C. 43192). Physical characteristics Emilkowalski has been characterized as a rare DL-type by Pan-STARRS photometric survey. It has also been assigned a taxonomic type of a darker carbonaceous and a common stony asteroid, respectively.24 Rotation period Between January and March 2012, photometric observations for this asteroid were made by a team led by Petr Pravec at Ondřejov Observatory, Czech Republic. The three obtained rotational lightcurves gave an identical period of 11.131 hours with a brightness variation of 0.55, 0.64 and 0.65 in magnitude, respectively (U=3/2+/3-).lcdb-Pravec Previously, in 2008, a lightcurve was obtained from observations at the Simeiz Observatory and the Chuguev Observing Station (121) in Ukraine, as well as at Maidanak Observatory in Uzbekistan. It also gave a period of 11.131 hours with an amplitude of 0.85 in magnitude, which implies an elongated shape (U=n.a.). Diameter and albedo According to the surveys carried out by NASA's Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, Emilkowalski measures between 6.98 and 7.84 kilometers in diameter and its surface has an albedo of 0.09 and 0.201. The Collaborative Asteroid Lightcurve Link assumes a standard albedo for carbonaceous asteroids of 0.057 and hence calculates a larger diameter of 10.6 kilometers. Notes lcdb-Pravec Pravec (2012) web: 3 rotational light-curves constructed in January, February and March 2012, gave a rotation period 11.131 hours (for all three lightcurves) with a brightness amplitude of 0.55, 0.64 and 0.66 in magnitude, respectively. Summary figures for (14627) Emilkowalski at LCDB and at Ondrejov Asteroid Photometry Project References 30em 2017-05-05 last obs. JPL Small-Body Database Browser: 14627 Emilkowalski (1998 VA) https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2014627 Jet Propulsion Laboratory 25 June 2017 Dictionary of Minor Planet Names Schmadel Lutz D. Springer Berlin Heidelberg (14627) Emilkowalski 815 2007 978-3-540-00238-3 10.1007/978-3-540-29925-7_9030 14627 Emilkowalski (1998 VA) Minor Planet Center https://www.minorplanetcenter.net/db_search/show_object?object_id=14627 6 April 2016 MPC/MPO/MPS Archive Minor Planet Center https://www.minorplanetcenter.net/iau/ECS/MPCArchive/MPCArchive_TBL.html 20 May 2016 D. Nesvorný D. Vokrouhlický November 2006 New Candidates for Recent Asteroid Breakups http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2006AJ....132.1950N The Astronomical Journal 132 5 1950–1958 2006AJ....132.1950N 10.1086/507989 6 April 2016 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 978-0-8165-3213-1 M. Broz A. Morbidelli W. F. Bottke J. Rozehnal D. Vokrouhlický D. Nesvorný March 2013 Constraining the cometary flux through the asteroid belt during the late heavy bombardment Astronomy and Astrophysics 551 16 2013A&A...551A.117B 10.1051/0004-6361/201219296 1301.6221 Krugly etal May 2008 Photometry of asteroids: detection of the YORP effect The Solar System Bodies: from Optics to Geology http://www.astron.kharkov.ua/conference/ssb/08/index.php Astronomical Institute of Kharkiv Kharkiv, Ukraine http://www.astron.kharkov.ua/conference/ssb/08/abstracts/SSB08-Krugly.pdf 7 December 2008 14627 25 June 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 20 May 2016 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 http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2011ApJ...741...90M The Astrophysical Journal 741 2 25 2011ApJ...741...90M 10.1088/0004-637X/741/2/90 1109.6407 20 May 2016 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 20 May 2016 6 Joseph R. Masiero A. K. Mainzer T. Grav J. M. Bauer R. M. Cutri J. Dailey P. R. M. Eisenhardt R. S. McMillan T. B. Spahr M. F. Skrutskie D. Tholen R. G. Walker E. L. Wright E. DeBaun D. Elsbury T. IV Gautier S. Gomillion A. Wilkins November 2011 Main Belt Asteroids with WISE/NEOWISE. I. Preliminary Albedos and Diameters http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2011ApJ...741...68M The Astrophysical Journal 741 2 20 2011ApJ...741...68M 10.1088/0004-637X/741/2/68 1109.4096 3 December 2016 6 C. R. Nugent A. Mainzer J. Bauer R. M. Cutri E. A. Kramer T. Grav J. Masiero S. Sonnett E. L. Wright September 2016 NEOWISE Reactivation Mission Year Two: Asteroid Diameters and Albedos The Astronomical Journal 152 3 12 2016AJ....152...63N 10.3847/0004-6256/152/3/63 1606.08923 free External links Maidanak astronomical observatory (MAO), of the Ulugh Beg Astronomical Institute (UBAI), Uzbekistan Academy of Sciences Lightcurve Database Query (LCDB), at www.minorplanet.info 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 – Geneva Observatory, Raoul Behrend Discovery Circumstances: Numbered Minor Planets (10001)-(15000) – Minor Planet Center 14627 14627 014627 014627 Category:Discoveries by Richard Kowalski Category:Named minor planets 19981107