+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   10511 (1989 OD) Classification: Main-belt Asteroid          SPK-ID: 2010511 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2456400.5 (2013-Apr-18.0) TDB Reference: MPO234899 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e 0.1373092 n/a   a 2.7807213 n/a AU q 2.3989027 n/a AU i 8.81566 n/a deg node 358.44740 n/a deg peri 288.37212 n/a deg M 20.35199 n/a deg tp 2456304.7499503 (2013-Jan-12.24995030) n/a JED period 1693.6927494 4.64 n/a n/a d yr n 0.21255331 n/a deg/d Q 3.1625399 n/a AU   Orbit Determination Parameters    # obs. used (total)      902      first obs. used      1976-??-??      last obs. used      2012-07-20      # oppositions      16      planetary ephem.      DE403      condition code      0      fit RMS      0.55      data source      MPC:mpn      producer      MPCLINUX   Additional Information  T_jup = 3.302  [ 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 34439)   10511 (1989 OD)          Discovered 1989-Jul-21 by McNaught, R. H. at Siding Spring (413) Reference: 19990504/Numbers.arc Last Updated: 2004-04-19 Alternate Designations  1989 OD = 1976 SK2 = 1981 SR7 = 1981 TJ1 = 1990 TY8 = 1998 FN115  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] 2013-May-23 15:10 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin