+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   52266 Van Flandern (1986 AD) Classification: Main-belt Asteroid          SPK-ID: 2052266 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2456400.5 (2013-Apr-18.0) TDB Reference: MPO244612 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e 0.2203744 n/a   a 2.3341459 n/a AU q 1.8197599 n/a AU i 23.71116 n/a deg node 302.19171 n/a deg peri 229.80849 n/a deg M 193.92332 n/a deg tp 2457001.3922314 (2014-Dec-09.89223140) n/a JED period 1302.5381004 3.57 n/a n/a d yr n 0.27638347 n/a deg/d Q 2.8485319 n/a AU   Orbit Determination Parameters    # obs. used (total)      519      first obs. used      1975-??-??      last obs. used      2012-11-14      # oppositions      12      planetary ephem.      DE403      condition code      0      fit RMS      0.52      data source      MPC:mpn      producer      MPCLINUX   Additional Information  T_jup = 3.426  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 13.9 mag n/a MPO244612   rotation period rot_per 9.890 h n/a Asteroid Lightcurve DataBase (Rev. 2013-May-01) Published Reference List: [Ditteon, R.; West, J. (2011) Minor Planet Bul. 38, 214-217.] [Brinsfield, J.W. (2011) Minor Planet Bul. 38, 154-155.] [Behrend, R. (2011) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] 52266 Van Flandern           Discovered 1986 Jan. 10 by C. S. Shoemaker and E. M. Shoemaker at Palomar. Tom Van Flandern (1940-2009) predicted and comprehensively analyzed lunar occultations at the U.S. Naval Observatory in the 1970s. In 1979 he published pioneering papers on the dynamics of binary minor planets. He helped improve GPS accuracies and established Meta Research to support alternative cosmological ideas. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20090209/MPCPages.arc Last Updated: 2009-02-11 Alternate Designations  1986 AD = 1975 CJ = 1998 QX81 = 2002 QQ  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] 2013-Jun-20 09:03 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin