+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   226709 (2004 OR7) Classification: Main-belt Asteroid          SPK-ID: 2226709 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB Reference: JPL 14 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1849868992061095 3.8717e-08   a 2.614543053495834 2.0027e-08 au q 2.130886841188767 9.8058e-08 au i 4.694121780329949 4.2553e-06 deg node 121.1858474941709 7.9355e-05 deg peri 181.223189698568 8.1018e-05 deg M 268.7615841832671 1.903e-05 deg tp 2459391.851820703876 (2021-Jun-26.35182070) 8.3577e-05 TDB period 1544.159378395926 4.23 1.7742e-05 4.857e-08 d yr n .2331365563922348 2.6787e-09 deg/d Q 3.098199265802902 2.3732e-08 au   Orbit Determination Parameters    # obs. used (total)      291      data-arc span      5767 days (15.79 yr)      first obs. used      2004-07-08      last obs. used      2020-04-22      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .54326      source      ORB      producer      Otto Matic      solution date      2020-May-21 10:29:12   Additional Information  Earth MOID = 1.11549 au   Jupiter MOID = 2.13687 au   T_jup = 3.379  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 16.4   n/a MPO379752   226709 (2004 OR7)          Discovered 2004-Jul-16 by LINEAR at Socorro Reference: 20091202/Numbers.arc Last Updated: 2009-12-04 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2020-Oct-26 08:18 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin