(75482) 1999 XC173

Vestian asteroid yes (75482) 1999 XC 173 #D6D6D6 10 December 1999 LINEAR Lincoln Lab's ETS (75482) 1999 XC 173 2001 KY 49 main-beltVestian 4 September 2017 (JD 2458000.5) 0 16.82 yr (6,143 days) 2.5436 AU 2.1844 AU 2.3640 AU 0.0760 3.63 yr (1,328 days) 310.28° 0.2712 ms / day 6.1205° 58.882° 48.553° 2.96 km (calculated) 1234.1709 89.9916 h 0.20 (assumed) S 14.514.557 0.004 (R)15.01 (75482) 1999 XC 173 is a stony Vestian asteroid and an exceptionally slow rotating body from the inner regions of the asteroid belt, approximately 3 kilometers in diameter. It was discovered on 10 December 1999, by LINEAR at Lincoln Laboratory's Experimental Test Site in Socorro, New Mexico, United States. Classification and orbit The body is classified as a S-type member of the Vesta family by the Collaborative Asteroid Lightcurve Link Light Curve Data Base (LCDB) . It orbits the Sun at a distance of 2.2–2.5 AU once every 3 years and 8 months (1,328 days). Its orbit has an eccentricity of 0.08 and an inclination of 6° with respect to the ecliptic. A first precovery was obtained at the discovering observatory in October 1999, extending the asteroid's observation arc by 2 months prior to its official discovery observation. Physical characteristics A rotational lightcurve was obtained for this asteroid from photometric observations at the Californian Palomar Transient Factory in September 2013. It gave a rotation period of 1234 hours with an estimated error margin of ±90 hours. 2016, it is the 6th slowest rotating minor planet known to exist. Its high brightness variation of 0.69 magnitude indicates that it has a non-spheroidal shape (U=2). According to the LCDB, the body's surface has an assumed standard albedo for stony asteroids of 0.20 and a calculated diameter of 2.96 kilometers with an absolute magnitude of 15.01. Numbering and naming This minor planet was numbered by the Minor Planet Center on 15 April 2004. As of 2018, it has not been named. References 2016-08-07 last obs. JPL Small-Body Database Browser: 75482 (1999 XC173) https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2075482 Jet Propulsion Laboratory 1 June 2017 75482 (1999 XC173) Minor Planet Center https://www.minorplanetcenter.net/db_search/show_object?object_id=75482 13 September 2016 MPC/MPO/MPS Archive Minor Planet Center https://www.minorplanetcenter.net/iau/ECS/MPCArchive/MPCArchive_TBL.html 24 February 2018 75482 13 September 2016 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 13 September 2016 External links Asteroid Lightcurve Database (LCDB), query form (info https://web.archive.org/web/20171216050541/http://www.minorplanet.info/lightcurvedatabase.html 2017-12-16 ) 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 2016-07-29 – Observatoire de Genève, Raoul Behrend Discovery Circumstances: Numbered Minor Planets (75001)-(80000) – Minor Planet Center 75482 (1999 XC173) 2075482 75482 Category:Vesta asteroids Category:Discoveries by LINEAR Category:Slow rotating minor planets 19991210