+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   (2011 AG5) Classification: Apollo [NEO, PHA]          SPK-ID: 3555071 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2456400.5 (2013-Apr-18.0) TDB Reference: JPL 52 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .390200698625485 7.1842e-08   a 1.430761044178588 1.0983e-07 AU q .8724770851739747 6.018e-08 AU i 3.680379426804628 1.0164e-05 deg node 135.6848051202182 6.507e-05 deg peri 53.53870886708997 6.5975e-05 deg M 75.2221013651787 4.8726e-05 deg tp 2456269.885302780933 (2012-Dec-08.38530278) 7.0025e-05 JED period 625.0994075609668 1.71 7.1976e-05 1.971e-07 d yr n .575908400560896 6.6312e-08 deg/d Q 1.989045003183202 1.5268e-07 AU   Orbit Determination Parameters    # obs. used (total)      222      data-arc span      719 days (1.97 yr)      first obs. used      2010-11-08      last obs. used      2012-10-27      planetary ephem.      DE405      SB-pert. ephem.      SB405-CPV-2      condition code      1      fit RMS      .49906      data source      ORB      producer      Otto Matic      solution date      2012-Dec-21 10:10:10   Additional Information  Earth MOID = .000363849 AU   T_jup = 4.600  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Close-Approach Data ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 21.86 mag .61288 52 autocmod 2.5b [ show close-approach data ] [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Close-Approach Data ] 2013-May-19 05:50 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin