1113 Katja

Background asteroid October 2019 yes 1113 Katja #D6D6D6 P. Shajn Simeiz Obs. 15 August 1928 (1113) Katja 1928 QCA909 DH Ekaterina Iosko(assistant at Simeiz Observatory) main-belt(outer)background 4 September 2017 (JD 2458000.5) 0 108.74 yr (39,719 days) 3.5537 AU 2.6687 AU 3.1112 AU 0.1422 5.49 yr (2,004 days) 341.95° 0.1796 ms / day 13.280° 324.54° 119.15° 38.20 0.58 km38.50 2.0 km38.65 km (derived)44.792 0.626 km51.949 1.531 km 18 1 h18.42 0.02 h18.465 0.010 h18.47 0.05 h 0.1144 0.02660.168 0.0260.195 0.0180.2071 0.0230.211 0.0080.2253 (derived) C (assumed) 9.309.409.49 0.20 1113 Katja (provisional designation 1928 QC) is a background asteroid from the outer regions of the asteroid belt, approximately 39 kilometers in diameter. It was discovered by Pelageya Shajn at the Simeiz Observatory in 1928, and named after Ekaterina Iosko, a staff member at the discovering observatory. Discovery Katja was discovered on 15 August 1928, by Soviet astronomer Pelageya Shajn at the Simeiz Observatory on the Crimean peninsula. Nine nights later, it was independently discovered by Max Wolf at the German Heidelberg Observatory on 24 August 1928. The Minor Planet Center only recognizes the first discoverer. The asteroid was first observed as A909 DH at Heidelberg in February 1909. Orbit and classification Katja is a non-family asteroid of the main belt's background population. It orbits the Sun in the outer asteroid belt at a distance of 2.7–3.6 AU once every 5 years and 6 months (2,004 days; semi-major axis of 3.11 AU). Its orbit has an eccentricity of 0.14 and an inclination of 13° with respect to the ecliptic. The body's observation arc begins at Heidelberg, 10 days after its official discovery observation at Simeiz. Physical characteristics Although Katja is an assumed, carbonaceous C-type asteroid, it is rather of stony composition due to its high albedo. Rotation period Between 2002 and 2011, several rotational lightcurves of Katja were obtained from photometric observations by French amateur astronomers Maurice Audejean, René Roy and Laurent Brunetto (U=2/2/2-). Best rated lightcurve, however, was obtained at the Sunflower (739), Blackberry (929) and Universidad de Monterrey (720) observatories in January 2002. Lightcurve analysis gave a well-defined synodic rotation period of 18.465 hours with a brightness amplitude of 0.17 magnitude (U=3). 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, Katja measures between 38.20 and 51.949 kilometers in diameter and its surface has an albedo between 0.1144 and 0.211. The Collaborative Asteroid Lightcurve Link derives an albedo of 0.2253 and a diameter of 38.65 kilometers based on an absolute magnitude of 9.3. Naming This minor planet was named for Ekaterina ("Katja") Iosko, a laboratory assistant and orbit calculator at the discovering Simeiz Observatory (AN 238, 149). She was the daughter of Iosif Gavrilovich Iosko, who also worked as a mechanician at the observatory. References 30em 2017-11-25 last obs. JPL Small-Body Database Browser: 1113 Katja (1928 QC) https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2001113 Jet Propulsion Laboratory 26 January 2018 Dictionary of Minor Planet Names – (1113) Katja Schmadel Lutz D. Springer Berlin Heidelberg 94 2007 978-3-540-00238-3 10.1007/978-3-540-29925-7_1114 (1113) Katja 1113 Katja (1928 QC) Minor Planet Center https://www.minorplanetcenter.net/db_search/show_object?object_id=1113 26 January 2018 Asteroids and comets rotation curves – (1113) Katja Behrend Raoul Geneva Observatory http://obswww.unige.ch/~behrend/page3cou.html#001113 26 January 2018 3 December 2002 https://web.archive.org/web/20021203214643/http://obswww.unige.ch/~behrend/page3cou.html#001113 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 1113 Katja – Proper Elements AstDyS-2, Asteroids – Dynamic Site https://newton.spacedys.com/astdys/index.php?pc=1.1.6&n=1113 28 October 2019 1113 26 January 2018 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) 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 26 January 2018 L. E. Robinson P. V. Sada W. R. Jr. Cooney September 2002 CCD Photometry of Asteroid 1113 Katja http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2002MPBu...29...54R The Minor Planet Bulletin 29 54 2002MPBu...29...54R 26 January 2018 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 26 January 2018 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 1113 1112 Polonia 1113 1114 Lorraine 001113 Category:Discoveries by Pelageya Shajn Category:Named minor planets 19280815