2012 Guo Shou-Jing

Main-belt asteroid October 2019 yes 2012 Guo Shou-Jing #D6D6D6 9 October 1964 Purple Mountain Obs. Purple Mountain Obs. (2012) Guo Shou-Jing 1964 TE 21971 SF 11974 MS Guo Shoujing(Chinese astronomer) main-beltFloraInterloper 4 September 2017 (JD 2458000.5) 0 63.80 yr (23,303 days) 2.7436 AU 1.9137 AU 2.3286 AU 0.1782 3.55 yr (1,298 days) 6.7252° 0.2774 ms / day 2.9066° 277.11° 36.696° 5.67 km (calculated)11.65 0.26 km11.931 0.080 km12.248 0.035 km12.82 3.11 km14.46 4.71 km14.70 4.42 km 12 h 0.030 0.0060.035 0.0410.04 0.040.04 0.030.0486 0.00160.070 0.0040.24 (assumed) CS 13.2013.3013.413.4613.51 0.2213.56 2012 Guo Shou-Jing, provisional designation 1964 TE 2, is a carbonaceous asteroid and Florian interloper from the inner regions of the asteroid belt, approximately 13 kilometers in diameter. It was discovered on 9 October 1964, by astronomers at the Purple Mountain Observatory in Nanking, China. The asteroid was named after Chinese astronomer Guo Shoujing. Orbit and classification Guo Shou-Jing orbits the Sun at a distance of 1.9–2.7 AU once every 3 years and 7 months (1,298 days). Its orbit has an eccentricity of 0.18 and an inclination of 3° with respect to the ecliptic. The body's observation arc begins 11 years prior to its official discovery observation, with a precovery taken at Palomar Observatory in August 1953. Florian interloper Guo Shou-Jing is a dark, carbonaceous asteroid but possesses the orbital characteristics of a member of the Flora family, which is one of the largest groups of bright, stony S-type asteroids in the main-belt. It is therefore thought to be an unrelated interloper that does not origin from the Flora family's parent body. Physical characteristics Guo Shou-Jing has been characterized as a carbonaceous C-type asteroid by Pan-STARRS photometric survey. Fragmentary lightcurve In August 2010, a fragmentary rotational lightcurve of Guo Shou-Jing was obtained from photometric observations by French amateur astronomer René Roy . Lightcurve analysis gave a rotation period of 12 hours with a brightness variation of 0.05 magnitude (U=1+). 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, Guo Shou-Jing measures between 11.65 and 14.70 kilometers in diameter and its surface has a low albedo between 0.030 and 0.070. Based on purely orbital criteria, the Collaborative Asteroid Lightcurve Link (erroneously) assumes an albedo of 0.24 – derived from 8 Flora, the largest member and namesake of the Flora family – and subsequently calculates a smaller diameter of 5.67 kilometers. Naming This minor planet was named after Chinese astronomer and engineer Guo Shoujing (1231–1316) who lived during the Yuan Dynasty. He designed and constructed several astronomical instruments for precise observations and has been called the "Tycho Brahe of China". The official 2012 naming citation was published by the Minor Planet Center on 1 August 1978 (M.P.C. 4420). References 30em 2017-06-03 last obs. JPL Small-Body Database Browser: 2012 Guo Shou-Jing (1964 TE2) https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2002012 Jet Propulsion Laboratory 28 June 2017 Dictionary of Minor Planet Names – (2012) Guo Shou-Jing Schmadel Lutz D. Springer Berlin Heidelberg 163 2007 978-3-540-00238-3 10.1007/978-3-540-29925-7_2013 (2012) Guo Shou-Jing 2012 Guo Shou-Jing (1964 TE2) Minor Planet Center https://www.minorplanetcenter.net/db_search/show_object?object_id=2012 28 June 2017 Dictionary of Minor Planet Names – Addendum to Fifth Edition (2006–2008) Appendix – Publication Dates of the MPCs Schmadel Lutz D. 2009 Springer Berlin Heidelberg 221 978-3-642-01964-7 10.1007/978-3-642-01965-4 2009dmpn.book.....S Asteroids and comets rotation curves – (2012) Guo Shou-Jing Behrend Raoul Geneva Observatory http://obswww.unige.ch/~behrend/page4cou.html#002012 28 June 2017 3 August 2003 https://web.archive.org/web/20030803183423/http://obswww.unige.ch/~behrend/page4cou.html#002012 dead 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 28 June 2017 2012 28 June 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) 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 35447010 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 46350317 28 June 2017 6 C. R. Nugent A. Mainzer J. Masiero J. Bauer R. M. Cutri T. Grav E. Kramer S. Sonnett R. Stevenson E. L. Wright December 2015 NEOWISE Reactivation Mission Year One: Preliminary Asteroid Diameters and Albedos http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2015ApJ...814..117N The Astrophysical Journal 814 2 13 2015ApJ...814..117N 10.1088/0004-637X/814/2/117 1509.02522 9341381 28 June 2017 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 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 28 June 2017 2011 Veteraniya 2012 2013 Tucapel Category:Guo Shoujing 002012 002012 Category:Named minor planets 19641009