(10115) 1992 SK

Apollo minor planet, NEO and PHA April 2020 yes 10115 1992 SK #FFC2E0 24 September 1992 E. F. HelinJ. Alu Palomar Obs. (10115) 1992 SK 1985 SD1985 TO 2 ApolloNEOPHA 4 September 2017 (JD 2458000.5) 0 63.57 yr (23,219 days) 1.6539 AU 0.8429 AU 1.2484 AU 0.3248 1.39 yr (509 days) 47.505° 0.7066 ms / day 15.322° 8.9232° 233.63° 0.0449 AU17.5 LD 0.90 0.20 km0.938 0.294 km1.000 0.085 km1.0 0.21.18 km (calculated) 7.31 0.02 h7.31832 h7.319 h7.323 0.005 h7.328 0.002 hlcdb-Pravec7.320232 0.000010 h -56° 94° 0.20 (assumed)0.2799 0.13970.318 0.2140.34 0.250.38 0.24 SMASS = SSS/Sq 17.017.4lcdb-Pravec 10115 1992 SK is a stony near-Earth object and potentially hazardous asteroid on an eccentric orbit. It belongs to the group of Apollo asteroids and measures approximately 1 km mi off 1 us in diameter. It was discovered by American astronomers Eleanor Helin and Jeff Alu at the Palomar Observatory in California on 24 September 1992. Classification and orbit The asteroid orbits the Sun at a distance of 0.8–1.7 AU once every 17 months (509 days). Its orbit has an eccentricity of 0.32 and an inclination of 15° with respect to the ecliptic. Its Earth minimum orbit intersection distance is 0.0449 AU km 3 on off. This makes the body a potentially hazardous asteroid, because its MOID is less than 0.05 AU and its diameter is greater than 150 meters. The first precovery was obtained at Palomar Observatory in 1953, extending the asteroid's observation arc by 39 years prior to its discovery. Physical characteristics In the SMASS classification, 1992 SK is characterized as a common stony S-type asteroid. Rotation period Several rotational lightcurves form photometric observations have been obtained for this body. In 1999, Czech astronomer Petr Pravec constructed a lightcurve, that rendered a rotation period of 7.328 hours and a brightness variation of 0.72 in magnitude (U=n/a).lcdb-Pravec In March 2006, observations by astronomer David Polishook from the ground-based Wise Observatory, Israel, gave a rotation period of 7.31 and amplitude of 0.70 mag (U=2), and in November 2011, American astronomer Brian Warner at the Palmer Divide Observatory, Colorado, obtained the first well-defined period of 7.323 hours with an amplitude of 0.50 mag (U=3). The rotation period of 1992 SK is slowly accelerating due to the YORP effect.10.1051/0004-6361/202141844 Rotation acceleration of asteroids (10115) 1992 SK, (1685) Toro, and (1620) Geographos due to the YORP effect 2022 Ďurech J. Vokrouhlický D. Pravec P. Krugly Yu. N. Kim M.-J. Polishook D. Ayvazian V. V. Bonev T. Choi Y.-J. Datashvili D. G. Donchev Z. Ehgamberdiev S. A. Hornoch K. Inasaridze R. Ya. Kapanadze G. V. Kim D.-H. Kučáková H. Kusakin A. V. Kušnirák P. Lee H.-J. Molotov I. E. Moon H.-K. Mykhailova S. S. Nikolenko I. V. Novichonok A. Oey J. Omarov Ch. T. Pollock J. T. Reva I. V. Rumyantsev V. V. Astronomy & Astrophysics 657 A5 2110.06548 2022A&A...657A...5D 238744034 1 Diameter and albedo According to the surveys carried out by NASA's space-based Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, the asteroid measures 1.0 and 0.94 kilometers in diameter and its surface has an albedo of 0.28 to 0.32, respectively. The ExploreNEOs project finds an albedo of 0.34, with a diameter of 0.9 kilometers, and the Collaborative Asteroid Lightcurve Link calculates a diameter of 1.18 kilometers based on an assumed standard albedo for stony asteroids of 0.20 and an absolute magnitude of 17.0. Numbering and naming This minor planet was numbered by the Minor Planet Center on 2 March 1999. 2019, it has not been named. Notes lcdb-Pravec Pravec (1999) web: rotation period 7.328 0.002 hours with a brightness amplitude of 0.72 mag. Two more light-curves rendered similar periods. No quality rating by CALL. Summary figures at http://www.minorplanet.info/PHP/generateOneAsteroidInfo.php?AstInfo=10115%7C Collaborative Asteroid Lightcurve Link (CALL) for (10115) References 30em 2017-05-08 last obs. JPL Small-Body Database Browser: 10115 (1992 SK) https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2010115 Jet Propulsion Laboratory 26 May 2017 10115 (1992 SK) Minor Planet Center https://www.minorplanetcenter.net/db_search/show_object?object_id=10115 1 April 2016 MPC/MPO/MPS Archive Minor Planet Center https://www.minorplanetcenter.net/iau/ECS/MPCArchive/MPCArchive_TBL.html 24 February 2018 10115 1 April 2016 6 Michael Mueller M. Delbo' J. L. Hora D. E. Trilling B. Bhattacharya W. F. Bottke S. Chesley J. P. Emery G. Fazio A. W. Harris A. Mainzer M. Mommert B. Penprase H. A. Smith T. B. Spahr J. A. Stansberry C. A. Thomas April 2011 ExploreNEOs. III. Physical Characterization of 65 Potential Spacecraft Target Asteroids http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2011AJ....141..109M The Astronomical Journal 141 4 9 2011AJ....141..109M 10.1088/0004-6256/141/4/109 44827674 1 April 2016 free 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 35447010 1 April 2016 6 A. Mainzer T. Grav J. Masiero J. Bauer R. M. Cutri R. S. McMillan C. R. Nugent D. Tholen R. Walker E. L. Wright November 2012 Physical Parameters of Asteroids Estimated from the WISE 3-Band Data and NEOWISE Post-Cryogenic Survey http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2012ApJ...760L..12M The Astrophysical Journal Letters 760 1 6 2012ApJ...760L..12M 10.1088/2041-8205/760/1/L12 1 April 2016 1210.0502 41459166 6 Michael W. Busch Steven J. Ostro Lance A. M. Benner Jon D. Giorgini Raymond F. Jurgens Randy Rose Christopher Magri Petr Pravec Daniel J. Scheeres Stephen B. Broschart March 2006 Radar and optical observations and physical modeling of near-Earth Asteroid 10115 (1992 SK) http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2006Icar..181..145B Icarus 181 1 145–155 2006Icar..181..145B 10.1016/j.icarus.2005.10.024 1 April 2016 Polishook, David July 2012 Lightcurves and Spin Periods of Near-Earth Asteroids, The Wise Observatory, 2005 - 2010 http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2012MPBu...39..187P The Minor Planet Bulletin 39 3 187–192 1052-8091 2012MPBu...39..187P 1 April 2016 Warner, Brian D. April 2014 Near-Earth Asteroid Lightcurve Analysis at CS3-Palmer Divide Station: 2013 September–December http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2014MPBu...41..113W The Minor Planet Bulletin 41 2 113–124 32494788 7268210 1052-8091 2014MPBu...41..113W 1 April 2016 6 C. A. Thomas D. E. Trilling J. P. Emery M. Mueller J. L. Hora L. A. M. Benner B. Bhattacharya W. F. Bottke S. Chesley M. Delbó G. Fazio A. W. Harris A. Mainzer M. Mommert A. Morbidelli B. Penprase H. A. Smith T. B. Spahr J. A. Stansberry September 2011 ExploreNEOs. V. Average Albedo by Taxonomic Complex in the Near-Earth Asteroid Population The Astronomical Journal 142 3 12 2011AJ....142...85T 10.1088/0004-6256/142/3/85 free Cristina A. Thomas Joshua P. Emery David E. Trilling Marco Delbó Joseph L. Hora Michael Mueller January 2014 Physical characterization of Warm Spitzer-observed near-Earth objects http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2014Icar..228..217T Icarus 228 217–246 2014Icar..228..217T 10.1016/j.icarus.2013.10.004 1 April 2016 1310.2000 2060/20140012047 119278697 External links space.frieger.com – 3D Model of (10115) 1992 SK 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 10115 10115 1992SK 10115 (1992 SK) 10114 Greifswald 10115 10116 Robertfranz 010115 Category:Discoveries by Eleanor F. Helin Category:Discoveries by Jeff T. Alu 010115 19920924