+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   233842 (2008 UO303) Classification: Main-belt Asteroid          SPK-ID: 2233842 [ 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 18 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2163882186425305 4.8837e-08   a 2.372133525353748 2.1453e-08 au q 1.858831777420225 1.2082e-07 au i 7.569713934579301 5.6083e-06 deg node 251.8347880934286 4.44e-05 deg peri 24.8578164309484 4.7713e-05 deg M 185.6289556430744 2.3646e-05 deg tp 2459646.866726639824 (2022-Mar-08.36672664) 9.4452e-05 TDB period 1334.464804340061 3.65 1.8103e-05 4.956e-08 d yr n .2697710713907007 3.6596e-09 deg/d Q 2.885435273287272 2.6095e-08 au   Orbit Determination Parameters    # obs. used (total)      291      data-arc span      7106 days (19.46 yr)      first obs. used      2000-08-31      last obs. used      2020-02-14      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .57152      source      ORB      producer      Otto Matic      solution date      2020-Nov-12 01:51:11   Additional Information  Earth MOID = .845614 au   Jupiter MOID = 2.24397 au   T_jup = 3.500  [ hide covariance matrix ] Orbital Elements at Epoch 2457108.5 (2015-Mar-27.0) TDB Reference: JPL 18 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2165859048368954 4.8684e-08   q 1.858061108078061 1.2043e-07 au tp 2456979.006156135264 (2014-Nov-17.50615614) 6.9458e-05 TDB node 251.8630959446385 4.4433e-05 deg peri 24.94876905541625 4.7759e-05 deg i 7.567045109585631 5.6071e-06 deg   Orbit Determination Parameters    # obs. used (total)      291      data-arc span      7106 days (19.46 yr)      first obs. used      2000-08-31      last obs. used      2020-02-14      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .57152      source      ORB      producer      Otto Matic      solution date      2020-Nov-12 01:51:11   Additional Information  Jupiter MOID = 2.24397 au   T_jup = 3.500  Orbit Covariance (6×6)   e q tp node peri i e 2.370172679006521E-15 -5.808912759167809E-15 1.15961786666431E-14 1.634477705745456E-14 -1.042411425431325E-13 -3.917758522421558E-15 q -5.808912759167809E-15 1.450252935456793E-14 6.1928273914339E-13 -4.382910989732595E-14 4.175135295984745E-13 9.403128429319793E-15 tp 1.15961786666431E-14 6.1928273914339E-13 4.824421972102702E-9 9.366084402586433E-12 1.243591161974347E-9 -1.070759557474987E-11 node 1.634477705745456E-14 -4.382910989732595E-14 9.366084402586433E-12 1.974307247679119E-9 -1.954663834647056E-9 -6.598172162061396E-11 peri -1.042411425431325E-13 4.175135295984745E-13 1.243591161974347E-9 -1.954663834647056E-9 2.280905680014571E-9 6.264511197776005E-11 i -3.917758522421558E-15 9.403128429319793E-15 -1.070759557474987E-11 -6.598172162061396E-11 6.264511197776005E-11 3.144007045252449E-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 16.6   n/a MPO450070   233842 (2008 UO303)          Discovered 2008-Oct-29 by Spacewatch at Kitt Peak Reference: 20100228/Numbers.arc Last Updated: 2010-03-03 Alternate Designations  2008 UO303 = 2000 SH363  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Jan-26 10:36 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin