+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   (2008 TC3) Classification: Apollo [NEO]          SPK-ID: 3430291 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2454746.5 (2008-Oct-07.0) TDB Reference: JPL 15 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .3120649442158607 5.73e-06   a 1.30820103011944 8.74e-06 AU q .8999573486320858 1.5074e-06 AU i 2.542199962627214 4.1364e-05 deg node 194.1011383301041 1.7891e-06 deg peri 234.4489653804233 7.6207e-05 deg M 330.7541044613792 0.00038311 deg tp 2454790.898937852993 (2008-Nov-20.39893785) 0.00014155 JED period 546.5251561871386 1.50 0.0054769 1.499e-05 d yr n .6587070987025719 6.6011e-06 deg/d Q 1.716444711606795 1.1467e-05 AU   Orbit Determination Parameters    # obs. used (total)      295      data-arc span      1 day      first obs. used      2008-10-06      last obs. used      2008-10-07      planetary ephem.      DE405      SB-pert. ephem.      SB405-CPV-2      condition code      4      fit RMS      .4173      data source      ORB      producer      Steven R. Chesley      solution date      2008-Oct-27 15:17:10   Additional Information  Earth MOID = 7.80302E-6 AU   T_jup = 4.929   not valid after 2008-Oct-07.116  [ 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 30.673 mag .37192 15 autocmod 2.4a rotation period rot_per 0.0269409 h n/a Asteroid Lightcurve DataBase (Rev. 2013-May-01) Published Reference List: [Pravec, P.; Harris, A.W.; Kozubal, M.; Dantowitz, R. (2009) DPS 2008 meeting.] [Betzler, A.S; Novaes, A.B,; Beltrane, P.; Naves, R.; Muler, G. (2009) Minor Planet Bul. 36, 58-59.] [Scheirich, P.; Durech, J.; Pravec, P.; Kozubal, M.; et al. (2010) Meteoritics & Planetary Science 45, 1804-1811.] [ show close-approach data ] [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Close-Approach Data ] 2013-May-21 14:37 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin