+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   180218 (2003 UB29) Classification: Main-belt Asteroid          SPK-ID: 2180218 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 16 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .08829106892191201 3.5618e-08   a 2.210438409518423 1.1074e-08 au q 2.01527643955599 7.8169e-08 au i 6.257959063604142 5.8139e-06 deg node 40.61369371609296 4.4914e-05 deg peri 60.13018187172506 5.9483e-05 deg M 27.26270508666607 3.9275e-05 deg tp 2459109.596103453693 (2020-Sep-17.09610345) 0.00013079 TDB period 1200.372547501765 3.29 9.0207e-06 2.47e-08 d yr n .29990689203051 2.2538e-09 deg/d Q 2.405600379480856 1.2052e-08 au   Orbit Determination Parameters    # obs. used (total)      304      data-arc span      6353 days (17.39 yr)      first obs. used      2003-10-19      last obs. used      2021-03-11      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .69868      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 21:25:37   Additional Information  Earth MOID = 1.04014 au   Jupiter MOID = 2.70123 au   T_jup = 3.645  [ 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 17.2   n/a MPO440013   180218 (2003 UB29)          Discovered 2003-Oct-22 by Uppsala-DLR Asteroid Survey at Kvistaberg Reference: 20080321/Numbers.arc Last Updated: 2008-03-26 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Apr-14 23:37 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin