+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   442714 (2012 UJ163) Classification: Main-belt Asteroid          SPK-ID: 2442714 [ 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 21 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1446977606473208 6.9603e-08   a 2.297068338535603 2.6507e-08 au q 1.964687693895639 1.5969e-07 au i 3.687894450096851 6.1941e-06 deg node 283.7225717171464 9.065e-05 deg peri 16.02865816013758 9.4356e-05 deg M 153.604962482917 2.5334e-05 deg tp 2458457.922167413477 (2018-Dec-05.42216741) 8.5043e-05 TDB period 1271.625711655452 3.48 2.2011e-05 6.026e-08 d yr n .2831021712602351 4.9002e-09 deg/d Q 2.629448983175566 3.0342e-08 au   Orbit Determination Parameters    # obs. used (total)      142      data-arc span      5193 days (14.22 yr)      first obs. used      2005-10-31      last obs. used      2020-01-19      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .4477      source      ORB      producer      Otto Matic      solution date      2020-Feb-26 10:42:43   Additional Information  Earth MOID = .949301 au   Jupiter MOID = 2.56401 au   T_jup = 3.577  [ hide covariance matrix ] Orbital Elements at Epoch 2457467.5 (2016-Mar-20.0) TDB Reference: JPL 21 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1452389658506658 6.9402e-08   q 1.963076207930685 1.5924e-07 au tp 2457187.159915183400 (2015-Jun-13.65991518) 7.7895e-05 TDB node 283.7789633921292 9.0723e-05 deg peri 16.10169946963996 9.4411e-05 deg i 3.686410667824628 6.1931e-06 deg   Orbit Determination Parameters    # obs. used (total)      142      data-arc span      5193 days (14.22 yr)      first obs. used      2005-10-31      last obs. used      2020-01-19      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .4477      source      ORB      producer      Otto Matic      solution date      2020-Feb-26 10:42:43   Additional Information  Jupiter MOID = 2.56401 au   T_jup = 3.577  Orbit Covariance (6×6)   e q tp node peri i e 4.816683606042842E-15 -1.094046000558438E-14 -1.539963533598643E-13 8.397144329889443E-14 -3.586616299622534E-13 -1.909556496784308E-15 q -1.094046000558438E-14 2.535876546928797E-14 6.774840415062263E-13 -1.896765083364752E-13 9.463068244786212E-13 4.747346439067632E-15 tp -1.539963533598643E-13 6.774840415062263E-13 6.067608298931653E-9 -3.038994963220622E-12 2.030488485302475E-9 -3.867568401316679E-12 node 8.397144329889443E-14 -1.896765083364752E-13 -3.038994963220622E-12 8.230580232229013E-9 -8.218227909860403E-9 1.29180046439908E-10 peri -3.586616299622534E-13 9.463068244786212E-13 2.030488485302475E-9 -8.218227909860403E-9 8.91340624489455E-9 -1.301174034233705E-10 i -1.909556496784308E-15 4.747346439067632E-15 -3.867568401316679E-12 1.29180046439908E-10 -1.301174034233705E-10 3.835486505175092E-11 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 17.3   n/a MPO503572   442714 (2012 UJ163)          Discovered 2012-Oct-08 by Spacewatch at Kitt Peak Reference: Last Updated: 2015-09-02 Alternate Designations  2012 UJ163 = 2015 MY95  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2020-Oct-26 08:27 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin