+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   312902 (2011 UL300) Classification: Main-belt Asteroid          SPK-ID: 2312902 [ 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 12 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1096104822462652 5.7245e-08   a 3.091579656914044 4.5164e-08 au q 2.752710119816953 1.6858e-07 au i 8.539532613549548 7.0761e-06 deg node 218.0410315773134 3.8282e-05 deg peri 236.535171017166 4.9861e-05 deg M 178.678411146548 3.1619e-05 deg tp 2458015.040752106348 (2017-Sep-18.54075211) 0.00017197 TDB period 1985.49632809721 5.44 4.3508e-05 1.191e-07 d yr n .1813148656613251 3.9731e-09 deg/d Q 3.430449194011135 5.0114e-08 au   Orbit Determination Parameters    # obs. used (total)      205      data-arc span      6783 days (18.57 yr)      first obs. used      2000-11-03      last obs. used      2019-05-31      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .66078      source      ORB      producer      Otto Matic      solution date      2020-Feb-25 18:48:54   Additional Information  Earth MOID = 1.78057 au   Jupiter MOID = 1.84723 au   T_jup = 3.198  [ hide covariance matrix ] Orbital Elements at Epoch 2457572.5 (2016-Jul-03.0) TDB Reference: JPL 12 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1121681887728509 5.7612e-08   q 2.739887020021226 1.7025e-07 au tp 2458012.711126981601 (2017-Sep-16.21112698) 0.00016641 TDB node 218.1245892764127 3.8187e-05 deg peri 235.5654669234912 4.9181e-05 deg i 8.555846638392172 7.0886e-06 deg   Orbit Determination Parameters    # obs. used (total)      205      data-arc span      6783 days (18.57 yr)      first obs. used      2000-11-03      last obs. used      2019-05-31      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .66078      source      ORB      producer      Otto Matic      solution date      2020-Feb-25 18:48:54   Additional Information  Jupiter MOID = 1.84723 au   T_jup = 3.198  Orbit Covariance (6×6)   e q tp node peri i e 3.31915521222742E-15 -9.553299150893089E-15 -1.255051381991087E-12 -3.068537174887637E-15 -3.649126640373795E-13 -2.422624497005363E-15 q -9.553299150893089E-15 2.898584178996521E-14 4.152344761468449E-12 6.196399605207319E-15 1.084602710764841E-12 7.691755769570971E-15 tp -1.255051381991087E-12 4.152344761468449E-12 2.769070841440362E-8 3.248865654316763E-12 5.169727325897243E-9 -1.455049786039628E-11 node -3.068537174887637E-15 6.196399605207319E-15 3.248865654316763E-12 1.45825566975225E-9 -1.44086075152092E-9 -2.746587269543151E-12 peri -3.649126640373795E-13 1.084602710764841E-12 5.169727325897243E-9 -1.44086075152092E-9 2.418726000922503E-9 1.921026469899553E-13 i -2.422624497005363E-15 7.691755769570971E-15 -1.455049786039628E-11 -2.746587269543151E-12 1.921026469899553E-13 5.024814274529373E-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 15.6   n/a MPO437380   312902 (2011 UL300)          Discovered 2005-Oct-01 by CSS at Catalina Reference: 20120109/Numbers.arc Last Updated: 2012-01-11 [ show close-approach data ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jan-15 22:19 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin