+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   259563 (2003 UD165) Classification: Main-belt Asteroid          SPK-ID: 2259563 [ 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 .2323387613818257 4.5961e-08   a 2.270779722716785 9.9088e-09 au q 1.743189574569802 1.0217e-07 au i 4.443846862313077 4.2032e-06 deg node 113.6015931390233 6.9893e-05 deg peri 189.9784093936965 7.0723e-05 deg M 10.69599924203477 1.2476e-05 deg tp 2458963.365310170612 (2020-Apr-23.86531017) 4.3191e-05 TDB period 1249.858758968693 3.42 8.1809e-06 2.24e-08 d yr n .2880325456110336 1.8853e-09 deg/d Q 2.798369870863769 1.2211e-08 au   Orbit Determination Parameters    # obs. used (total)      364      data-arc span      7834 days (21.45 yr)      first obs. used      1999-06-06      last obs. used      2020-11-16      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .56813      source      ORB      producer      Otto Matic      solution date      2020-Dec-18 00:16:51   Additional Information  Earth MOID = .728085 au   Jupiter MOID = 2.44629 au   T_jup = 3.573  [ 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 17.1   n/a MPO437205   259563 (2003 UD165)          Discovered 2003-Oct-21 by NEAT at Palomar Reference: 20110119/Numbers.arc Last Updated: 2011-01-25 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Jan-17 23:32 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin