+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   1682 Karel (1949 PH) Classification: Main-belt Asteroid          SPK-ID: 2001682 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2456400.5 (2013-Apr-18.0) TDB Reference: MPO250213 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e 0.1909674 n/a   a 2.2387901 n/a AU q 1.8112542 n/a AU i 4.02646 n/a deg node 325.81517 n/a deg peri 9.57354 n/a deg M 356.14543 n/a deg tp 2456413.6006222 (2013-May-01.10062220) n/a JED period 1223.5408859 3.35 n/a n/a d yr n 0.29422801 n/a deg/d Q 2.6663260 n/a AU   Orbit Determination Parameters    # obs. used (total)      1148      first obs. used      1929-??-??      last obs. used      2012-09-03      # oppositions      26      planetary ephem.      DE403      condition code      0      fit RMS      0.55      data source      MPC:mpn      producer      MPCLINUX   Additional Information  T_jup = 3.609  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 12.9 mag n/a PDS3 (MPC 17263)   rotation period rot_per 3.37485 h n/a Asteroid Lightcurve DataBase (Rev. 2013-May-01) Published Reference List: [Behrend, R. (2008) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] [Hanus, J.; Durech, J.; Broz, M.; Warner, B.D.; et al. (2011) Astron. Astrophys. 530, A134.] 1682 Karel (1949 PH)          Discovered 1949-Aug-02 by Reinmuth, K. at Heidelberg (024) Reference: DISCOVERY.DB Last Updated: 2003-08-29 Alternate Designations  1949 PH = 1929 SD = 1939 RK = 1946 WC = 1949 QQ = 1949 QX1 = 1949 SL = 1959 PH = 1988 CR3  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] 2013-May-20 00:17 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin