1325 Inanda

Main-belt asteroid October 2019 yes 1325 Inanda #D6D6D6 C. Jackson Johannesburg Obs. 14 July 1934 (1325) Inanda 1934 NR1926 RP1930 OD Inanda(South African township) main-belt(middle)background 4 September 2017 (JD 2458000.5) 0 82.80 yr (30,241 days) 3.1900 AU 1.8917 AU 2.5408 AU 0.2555 4.05 yr (1,479 days) 165.02° 0.2434 ms / day 7.4205° 14.393° 336.80° 9.97 2.30 km10.87 0.6 km10.890 0.110 km12.34 0.61 km 20.52 0.05 hlightcurve-plot-Warner24 h (poor)141.6 0.2 h (poor) 0.20 0.130.303 0.0340.374 0.0410.3742 0.04070.3756 0.043 S 11.5011.66 0.2812.212.37 1325 Inanda, provisional designation 1934 NR, is a stony background asteroid from the central regions of the asteroid belt, approximately 11 kilometers in diameter. It was discovered on 14 July 1934, by South African astronomer Cyril Jackson at the Union Observatory in Johannesburg. The asteroid was named after the township of Inanda in South Africa. Orbit and classification Inanda is a non-family asteroid of the main belt's background population. It orbits the Sun in the central main-belt at a distance of 1.9–3.2 AU once every 4 years and 1 month (1,479 days; semi-major axis of 2.54 AU). Its orbit has an eccentricity of 0.26 and an inclination of 7° with respect to the ecliptic. The asteroid was first identified as 1926 RP at Johannesburg in September 1926. The body's observation arc begins with its official discovery observation in July 1934. Physical characteristics Inanda has been characterized as a stony, common S-type asteroid by Pan-STARRS photometric survey. Rotation period In November 2007, a rotational lightcurve of Inanda was obtained from photometric observations by American astronomer Brian Warner at his Palmer Divide Observatory in Colorado. Lightcurve analysis gave an ambiguous rotation period of 20.52 hours with an alternative period solution of 35.83 hours and a brightness amplitude of 0.12 magnitude (U=2).lightcurve-plot-Warner The results supersede previous observations that gave a fragmentary lightcurve with a period of 24 and 141.6 hours respectively (U=1/1). 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, Inanda measures between 9.97 and 12.34 kilometers in diameter and its surface has an albedo between 0.20 and 0.3756. The Collaborative Asteroid Lightcurve Link adopts the results obtained by IRAS, that is, an albedo of 0.3756 and a diameter of 10.87 kilometers based on an absolute magnitude of 11.5. Occultation On 12 November 2007, an occultation suggested that Inanda could be a binary asteroid. However, the asteroid's suspected binary nature has not been mentioned in other studies since then. Naming This minor planet was named after the South African, Zulu-speaking Township of Inanda, KwaZulu-Natal. The official naming citation was mentioned in The Names of the Minor Planets by Paul Herget in 1955 (H 121). Notes lightcurve-plot-Warner Lightcurve plot of 1325 Inanda, Palmer Divide Observatory, B. D. Warner (2007), with a period of 20.52 0.05 hours and a brightness amplitude of 0.12 0.01 magnitude. Summary figures for (1325) Inanda at Collaborative Asteroid Lightcurve Link (CALL) References 30em 2017-04-30 last obs. JPL Small-Body Database Browser: 1325 Inanda (1934 NR) https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2001325 Jet Propulsion Laboratory 5 December 2017 Dictionary of Minor Planet Names – (1325) Inanda Schmadel Lutz D. Springer Berlin Heidelberg 108 2007 978-3-540-00238-3 10.1007/978-3-540-29925-7_1326 (1325) Inanda 1325 Inanda (1934 NR) Minor Planet Center https://www.minorplanetcenter.net/db_search/show_object?object_id=1325 5 December 2017 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 118745497 5 December 2017 Asteroid 1325 Inanda – Proper Elements AstDyS-2, Asteroids – Dynamic Site https://newton.spacedys.com/astdys/index.php?pc=1.1.6&n=1325 29 October 2019 2007 Asteroid Occultation Results for North America Brad Timerson 19 February 2008 www.asteroidoccultation.com http://www.asteroidoccultation.com/observations/Results/index2007.html 5 December 2017 https://web.archive.org/web/20171210171810/http://www.asteroidoccultation.com/observations/Results/index2007.html 10 December 2017 Asteroids with Satellites Johnston's Archive 18 February 2017 Robert Johnston http://www.johnstonsarchive.net/astro/asteroidmoons.html 5 December 2017 1325 5 December 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 (online, AcuA catalog p. 153) 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 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 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 John Menke Walt Cooney John Gross Dirk Terrell David Higgins October 2008 Asteroid Lightcurve Analysis at Menke Observatory http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2008MPBu...35..155M The Minor Planet Bulletin 35 4 155–160 1052-8091 2008MPBu...35..155M 5 December 2017 Warner, B. March 2000 Asteroid Photometry at the Palmer Divide Observatory http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2000MPBu...27....4W The Minor Planet Bulletin 27 4–6 2000MPBu...27....4W 5 December 2017 Warner, Brian D. June 2008 Asteroid Lightcurve Analysis at the Palmer Divide Observatory: September-December 2007 http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2008MPBu...35...67W The Minor Planet Bulletin 35 2 67–71 1052-8091 2008MPBu...35...67W 5 December 2017 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 5 December 2017 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 1325 1324 Knysna 1325 1326 Losaka 001325 Category:Discoveries by Cyril Jackson (astronomer) Category:Named minor planets 19340714