+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   52304 (1991 RB10) Classification: Main-belt Asteroid          SPK-ID: 2052304 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2456400.5 (2013-Apr-18.0) TDB Reference: MPO257213 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e 0.1376108 n/a   a 2.2969598 n/a AU q 1.9808733 n/a AU i 4.54653 n/a deg node 300.37459 n/a deg peri 37.56575 n/a deg M 91.80167 n/a deg tp 2456076.2525186 (2012-May-28.75251860) n/a JED period 1271.5356191 3.48 n/a n/a d yr n 0.28312223 n/a deg/d Q 2.6130463 n/a AU   Orbit Determination Parameters    # obs. used (total)      651      first obs. used      1991-??-??      last obs. used      2013-03-12      # oppositions      12      planetary ephem.      DE403      condition code      0      fit RMS      0.54      data source      MPC:mpn      producer      MPCLINUX   Additional Information  T_jup = 3.577  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 14.5 mag n/a MPO257213   52304 (1991 RB10)          Discovered 1991-Sep-12 by Holt, H. E. at Palomar (675) Reference: 20030216/Numbers.arc Last Updated: 2004-04-19 Alternate Designations  1991 RB10 = 1998 QD29  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] 2013-Jun-19 20:50 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin