1102 Pepita

Stony background asteroid October 2019 yes 1102 Pepita #D6D6D6 1102Pepita (Lightcurve Inversion).png Lightcurve-based 3D-model of Pepita J. Comas Solà Fabra Obs. 5 November 1928 (1102) Pepita 1928 VA1960 WQA899 KB Josep Comas i Solà(discoverer himself) main-belt(outer)background 4 September 2017 (JD 2458000.5) 0 86.24 yr (31,499 days) 3.4119 AU 2.7311 AU 3.0715 AU 0.1108 5.38 yr (1,966 days) 267.80° 0.1831 ms / day 15.828° 216.59° 116.55° 30.88 1.59 km36.632 0.378 km39.27 2.1 km41.02 0.74 km41.733 0.308 km 5.1 0.1 h5.1040 0.0003 h5.10532 0.00005 h5.1054 0.0002 h 0.1842 0.02200.188 0.0070.1991 0.0230.229 0.0540.322 0.058 Tholen CSMASS SB–V 0.724U–B 0.424 8.68 0.659.40 1102 Pepita, provisional designation 1928 VA, is a stony background asteroid from the outer regions of the asteroid belt, approximately 39 kilometers in diameter. It was discovered on 5 November 1928, by Catalan astronomer Josep Comas i Solà at the Fabra Observatory in Barcelona, Spain. It was named after the discoverer by the feminine form of his nickname. The asteroid has a rotation period of 5.1 hours. Orbit and classification Pepita is a non-family asteroid from the main belt's background population. It orbits the Sun in the outer asteroid belt at a distance of 2.7–3.4 AU once every 5 years and 5 months (1,966 days; semi-major axis of 3.07 AU). Its orbit has an eccentricity of 0.11 and an inclination of 16° with respect to the ecliptic. In May 1899, the asteroid was first observed as A899 KB at Harvard's Boyden Station in Arequipa, Peru (800). The body's observation arc begins with its official discovery observation at Barcelona. Physical characteristics In the SMASS classification, Pepita is a stony S-type asteroid, which agrees with the body's measured geometric albedo (see below). Conversely, it is also classified as a carbonaceous C-type asteroid by Tholen. Rotation period and poles Three rotational lightcurves of Pepita were obtained from photometric observations by astronomers Hilari Pallares and Enric Forné (2006, U=2), Pierre Antonini and René Roy (2007, U=3), as well as by Robert Stephens (2007, U=3). The consolidated lightcurve gave a well-defined rotation period of 5.1054 hours with a brightness amplitude between 0.31 and 0.36 magnitude. In 2011, a modeled lightcurve using data from the Uppsala Asteroid Photometric Catalogue and other sources gave a concurring sidereal period 5.10532 hours, as well as two spin axes of (25.0°, −34.0°) and (231.0°, −30.0°) in ecliptic coordinates (λ, β). 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, Pepita measures between 30.88 and 41.733 kilometers in diameter and its surface has an albedo between 0.1842 and 0.322. The Collaborative Asteroid Lightcurve Link adopts the results obtained by IRAS, that is, an albedo of 0.1991 and a diameter of 39.27 kilometers based on an absolute magnitude of 9.40. Naming This minor planet was named after the discoverer, Josep Comas i Solà (1868–1937), by the feminine form of his nickname, "Pepito". He was the first director of the discovering Fabra Observatory and founded the Astronomical Society of Spain and America (es Sociedad Astronomica de España y América, SADEYA). The official naming citation was mentioned in The Names of the Minor Planets by Paul Herget in 1955 (H 104). The asteroid 1655 Comas Solà is also named after him, as is the Martian crater Comas Sola.1276 Martian crater Comas Solá References 30em 2017-07-05 last obs. JPL Small-Body Database Browser: 1102 Pepita (1928 VA) https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2001102 Jet Propulsion Laboratory 2 February 2018 Dictionary of Minor Planet Names – (1102) Pepita Schmadel Lutz D. Springer Berlin Heidelberg 94 2007 978-3-540-00238-3 10.1007/978-3-540-29925-7_1103 1102 Pepita (1928 VA) Minor Planet Center https://www.minorplanetcenter.net/db_search/show_object?object_id=1102 2 February 2018 Asteroids and comets rotation curves – (1102) Pepita Behrend Raoul Geneva Observatory http://obswww.unige.ch/~behrend/page3cou.html#001102 2 February 2018 3 December 2002 https://web.archive.org/web/20021203214643/http://obswww.unige.ch/~behrend/page3cou.html#001102 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 The Astrophysical Journal 791 2 11 2014ApJ...791..121M 10.1088/0004-637X/791/2/121 1406.6645 Asteroid 1102 Pepita – Proper Elements AstDyS-2, Asteroids – Dynamic Site https://newton.spacedys.com/astdys/index.php?pc=1.1.6&n=1102 28 October 2019 1102 2 February 2018 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 The Astrophysical Journal Letters 759 1 5 2012ApJ...759L...8M 10.1088/2041-8205/759/1/L8 1209.5794 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 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 (online, AcuA catalog p. 153) Robert D. Stephens Pedro V. Sada December 2007 Lightcurve Analysis of 1102 Pepita The Minor Planet Bulletin 34 4 111 1052-8091 2007MPBu...34..111S 6 Hanus, J. Durech, J. Broz, M. Warner, B. D. Pilcher, F. Stephens, R. Oey, J. Bernasconi, L. Casulli, S. Behrend, R. Polishook, D. Henych, T. Lehký, M. Yoshida, F. Ito, T. June 2011 A study of asteroid pole-latitude distribution based on an extended set of shape models derived by the lightcurve inversion method Astronomy & Astrophysics 530 16 2011A&A...530A.134H 10.1051/0004-6361/201116738 1104.4114 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 Icarus 261 34–47 2015Icar..261...34V 10.1016/j.icarus.2015.08.007 1506.00762 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 1102 1101 Clematis 1102 1103 Sequoia 001102 Category:Discoveries by Josep Comas Solà Category:Named minor planets 001102 001102 19281105