+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   12712 (1991 EY3) Classification: Main-belt Asteroid          SPK-ID: 2012712 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2456400.5 (2013-Apr-18.0) TDB Reference: MPO247478 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e 0.1350430 n/a   a 2.8579384 n/a AU q 2.4719938 n/a AU i 1.33601 n/a deg node 316.80964 n/a deg peri 239.61955 n/a deg M 169.12409 n/a deg tp 2455571.4500613 (2011-Jan-09.95006130) n/a JED period 1764.7277684 4.83 n/a n/a d yr n 0.20399747 n/a deg/d Q 3.2438830 n/a AU   Orbit Determination Parameters    # obs. used (total)      781      first obs. used      1991-??-??      last obs. used      2012-12-10      # oppositions      15      planetary ephem.      DE403      condition code      0      fit RMS      0.57      data source      MPC:mpn      producer      MPCLINUX   Additional Information  T_jup = 3.289  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 13.7 mag n/a PDS3 (MPC 37041)   12712 (1991 EY3)          Discovered 1991-Mar-12 by Debehogne, H. at La Silla (809) Reference: 19991222/Numbers.arc Last Updated: 2004-04-19 Alternate Designations  1991 EY3 = 1993 RX10  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] 2013-May-21 09:18 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin