+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   5903 (1989 AN1) Classification: Main-belt Asteroid          SPK-ID: 2005903 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2456400.5 (2013-Apr-18.0) TDB Reference: MPO256907 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e 0.0940781 n/a   a 2.7443824 n/a AU q 2.4861961 n/a AU i 2.10177 n/a deg node 45.93644 n/a deg peri 94.62386 n/a deg M 97.03308 n/a deg tp 2455952.9076090 (2012-Jan-26.40760900) n/a JED period 1660.6013203 4.55 n/a n/a d yr n 0.21678894 n/a deg/d Q 3.0025687 n/a AU   Orbit Determination Parameters    # obs. used (total)      1057      first obs. used      1988-??-??      last obs. used      2013-03-19      # oppositions      17      planetary ephem.      DE403      condition code      0      fit RMS      0.56      data source      MPC:mpn      producer      MPCLINUX   Additional Information  T_jup = 3.341  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 12.7 mag n/a PDS3 (MPC 28114)   5903 (1989 AN1)          Discovered 1989-Jan-06 by Ueda and Kaneda at Kushiro (399) Reference: DISCOVERY.DB Last Updated: 2003-08-29 Alternate Designations  1989 AN1 = 1976 GD6 = 1980 BW5  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] 2013-Jun-18 07:25 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin