+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   (2009 RH) Classification: Apollo [NEO]          SPK-ID: 3467048 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2455090.5 (2009-Sep-16.0) TDB Reference: JPL 14 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .3061893703738235 0.00079003   a 1.246023371470977 0.0010202 au q .8645042598892101 0.00027661 au i 3.569427147408597 0.0095985 deg node 165.9468786212649 0.0025169 deg peri 264.5507753619055 0.00081624 deg M 313.5753836877694 0.076239 deg tp 2455156.013911814209 (2009-Nov-20.51391181) 0.027132 TDB period 508.028070592837 1.39 0.62391 0.001708 d yr n .7086222609311774 0.00087026 deg/d Q 1.627542483052745 0.0013325 au   Orbit Determination Parameters    # obs. used (total)      32      data-arc span      14 days      first obs. used      2009-09-10      last obs. used      2009-09-24      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      8      norm. resid. RMS      .47789      source      ORB      producer      Otto Matic      solution date      2021-Apr-15 02:50:40   Additional Information  Earth MOID = .0197563 au   Jupiter MOID = 3.65777 au   T_jup = 5.106  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 23.8   n/a MPO162557   [ show close-approach data ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ] 2021-Apr-18 06:48 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin