1243 Pamela

Main-belt asteroid October 2019 yes 1243 Pamela #D6D6D6 C. Jackson Johannesburg Obs. 7 May 1932 (1243) Pamela 1932 JE1929 XD1934 VL1951 AN1954 JO Pamela Jackson(discoverer's daughter) main-belt(outer)background 4 September 2017 (JD 2458000.5) 0 85.66 yr (31,287 days) 3.2409 AU 2.9512 AU 3.0960 AU 0.0468 5.45 yr (1,990 days) 165.56° 0.1809 ms / day 13.286° 245.68° 56.586° 66.11 23.05 km69.883 0.420 km69.991 1.389 km70.06 km (derived)70.07 5.9 km70.25 1.00 km70.97 20.63 km76.42 0.67 km 26.00 0.01 h26.0 0.1 h26 0.5 h26.017 0.003 hLightcurve-plot-Warner 0.040 0.0050.04 0.020.04 0.060.0474 (derived)0.048 0.0020.0483 0.0090.0484 0.0102 CC (assumed) 9.609.689.709.719.90 0.29 1243 Pamela, provisional designation 1932 JE, is a carbonaceous background asteroid from the outer regions of the asteroid belt, approximately 70 kilometers in diameter. It was discovered on 7 May 1932, by South African astronomer Cyril Jackson at the Union Observatory in Johnannesburg. The asteroid was named for Pamela Jackson, daughter of the discoverer. Orbit and classification Pamela is a non-family asteroid from the main belt's background population. It orbits the Sun in the outer main-belt at a distance of 3.0–3.2 AU once every 5 years and 5 months (1,990 days; semi-major axis of 3.10 AU). Its orbit has an eccentricity of 0.05 and an inclination of 13° with respect to the ecliptic. The asteroid was first observed at Lowell Observatory in November 1929. The body's observation arc begins at Johannesburg in April 1932, or one month prior to its official discovery observation. Physical characteristics Pamela has been characterized as a carbonaceous C-type asteroid by Pan-STARRS photometric survey. Rotation period In October 1999, a first rotational lightcurve of Pamela was obtained from photometric observations by Brian Warner at his Palmer Divide Observatory in Colorado, United States. Lightcurve analysis gave a rotation period of 26.017 hours with a brightness amplitude of 0.49 magnitude (U=2).Lightcurve-plot-Warner Other lightcurves were taken by the Spanish amateur group OBAS in 2015 (U=2), as well as by René Roy and Stéphane Charbonnel in France, and Roberto Crippa and Federico Manzini at Sozzago Astronomical Station (A12) in Piedmont, Italy, between 2005 and 2010 (U=2/1/2/2-). 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, Pamela measures between 66.11 and 76.42 kilometers in diameter and its surface has an albedo between 0.040 and 0.0484. The Collaborative Asteroid Lightcurve Link derives an albedo of 0.0474 and a diameter of 70.06 kilometers based on an absolute magnitude of 9.7. Naming This minor planet was named after Cyril Jackson's daughter, Pamela Jackson. The official naming citation was mentioned in The Names of the Minor Planets by Paul Herget in 1955 (H 114). Notes Lightcurve-plot-Warner Lightcurve plot of 1243 Pamela, Palmer Divide Observatory, B. D. Warner (1999). Rotation period 26.017 0.003 hours with a brightness amplitude of 0.49 0.03 mag. Summary figures at the LCDB. References 30em 2017-12-01 last obs. JPL Small-Body Database Browser: 1243 Pamela (1932 JE) https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2001243 Jet Propulsion Laboratory 4 January 2018 Dictionary of Minor Planet Names – (1243) Pamela Schmadel Lutz D. Springer Berlin Heidelberg 103 2003 978-3-540-00238-3 10.1007/978-3-540-29925-7_1244 (1243) Pamela 1243 Pamela (1932 JE) Minor Planet Center https://www.minorplanetcenter.net/db_search/show_object?object_id=1243 4 January 2018 Asteroids and comets rotation curves – (1243) Pamela Behrend Raoul Geneva Observatory http://obswww.unige.ch/~behrend/page3cou.html#001243 4 January 2018 23 April 2019 https://web.archive.org/web/20190423121547/http://obswww.unige.ch/~behrend/page3cou.html#001243 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 119293330 Asteroid 1243 Pamela – Proper Elements AstDyS-2, Asteroids – Dynamic Site https://newton.spacedys.com/astdys/index.php?pc=1.1.6&n=1243 29 October 2019 1243 4 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 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 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 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 4 January 2018 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 4 January 2018 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 4 January 2018 6 Alfonso Carreno Garceran Amadeo Aznar Enrique Arce Mansego Pedro Brines Rodriguez Juan Lozano de Haro Alvaro Fornas Silva Gonzalo Fornas Silva Vincente Mas Martinez Onofre Rodrigo Chiner January 2016 Nineteen Asteroids Lightcurves at Asteroids Observers (OBAS) - MPPD: 2015 April – September http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2016MPBu...43...92G The Minor Planet Bulletin 43 1 92–97 1052-8091 2016MPBu...43...92G 4 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 53493339 4 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 1243 1242 Zambesia 1243 1244 Deira 001243 Category:Discoveries by Cyril Jackson (astronomer) Category:Named minor planets 19320507