+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   295800 (2008 UR286) Classification: Main-belt Asteroid          SPK-ID: 2295800 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB Reference: JPL 10 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .07197990041178791 6.4315e-08   a 2.710531786478856 3.0038e-08 au q 2.515427978425122 1.8069e-07 au i 3.535951675562831 8.1106e-06 deg node 146.3525553203036 0.00011145 deg peri 282.2785692608228 0.00012623 deg M 190.251564632666 5.9386e-05 deg tp 2459769.070061153877 (2022-Jul-08.57006115) 0.00027224 TDB period 1629.972149178586 4.46 2.7095e-05 7.418e-08 d yr n .2208626694520025 3.6714e-09 deg/d Q 2.905635594532589 3.22e-08 au   Orbit Determination Parameters    # obs. used (total)      132      data-arc span      6634 days (18.16 yr)      first obs. used      2001-02-03      last obs. used      2019-04-04      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .59253      source      ORB      producer      Otto Matic      solution date      2019-Jul-14 11:31:36   Additional Information  Earth MOID = 1.53246 au   Jupiter MOID = 2.2861 au   T_jup = 3.357  [ hide covariance matrix ] Orbital Elements at Epoch 2456619.5 (2013-Nov-23.0) TDB Reference: JPL 10 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .07327128654329611 6.4017e-08   q 2.512549385306925 1.8025e-07 au tp 2456516.956077183357 (2013-Aug-12.45607718) 0.00025828 TDB node 146.3990754007718 0.00011162 deg peri 283.684499411163 0.00012592 deg i 3.532944236044034 8.1045e-06 deg   Orbit Determination Parameters    # obs. used (total)      132      data-arc span      6634 days (18.16 yr)      first obs. used      2001-02-03      last obs. used      2019-04-04      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .59253      source      ORB      producer      Otto Matic      solution date      2019-Jul-14 11:31:36   Additional Information  Jupiter MOID = 2.2861 au   T_jup = 3.357  Orbit Covariance (6×6)   e q tp node peri i e 4.098142523227561E-15 -1.139737126374746E-14 -3.489944711962476E-12 -2.208492867181414E-14 -8.97152519269645E-13 -2.289694164385977E-15 q -1.139737126374746E-14 3.249072887951892E-14 9.799468682528247E-12 5.923260776760625E-14 2.514310236973419E-12 6.722248517262767E-15 tp -3.489944711962476E-12 9.799468682528247E-12 6.671097983743312E-8 -1.186274177010481E-11 1.509071693361502E-8 -7.369753692488576E-13 node -2.208492867181414E-14 5.923260776760625E-14 -1.186274177010481E-11 1.245876611424287E-8 -1.243696069083893E-8 1.881153549447363E-10 peri -8.97152519269645E-13 2.514310236973419E-12 1.509071693361502E-8 -1.243696069083893E-8 1.585497182660365E-8 -1.878693837163451E-10 i -2.289694164385977E-15 6.722248517262767E-15 -7.369753692488576E-13 1.881153549447363E-10 -1.878693837163451E-10 6.568236716045274E-11 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 16.9   n/a MPO471118   295800 (2008 UR286)          Discovered 2008-Oct-28 by Mt. Lemmon Survey at Mount Lemmon Reference: 20110912/Numbers.arc Last Updated: 2011-09-14 [ show close-approach data ] Alternate Designations  2008 UR286 = 2006 GJ33  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2020-Aug-09 00:46 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin