+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   6325 (1991 EA1) Classification: Main-belt Asteroid          SPK-ID: 2006325 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2456400.5 (2013-Apr-18.0) TDB Reference: MPO250270 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e 0.1991998 n/a   a 2.7393517 n/a AU q 2.1936734 n/a AU i 10.00116 n/a deg node 40.05578 n/a deg peri 161.93283 n/a deg M 296.75481 n/a deg tp 2456691.4344241 (2014-Feb-02.93442410) n/a JED period 1656.0372840 4.53 n/a n/a d yr n 0.21738641 n/a deg/d Q 3.2850300 n/a AU   Orbit Determination Parameters    # obs. used (total)      785      first obs. used      1955-??-??      last obs. used      2013-01-18      # oppositions      19      planetary ephem.      DE403      condition code      0      fit RMS      0.56      data source      MPC:mpn      producer      MPCLINUX   Additional Information  T_jup = 3.300  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 12.2 mag n/a PDS3 (MPC 28115)   6325 (1991 EA1)          Discovered 1991-Mar-14 by Arai & Mori at Yorii Reference: DISCOVERY.DB Last Updated: 2003-08-29 Alternate Designations  1991 EA1 = 1989 WR4  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] 2013-Jun-18 04:34 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin