+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   136163 (2003 UY40) Classification: Main-belt Asteroid          SPK-ID: 2136163 [ 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 16 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2302689567012052 5.4881e-08   a 2.273857373774 1.1834e-08 au q 1.750258608627719 1.2747e-07 au i 2.032944630376222 6.9048e-06 deg node 353.1450329842014 0.00011955 deg peri 323.4289882719422 0.00012027 deg M 1.624669103046674 1.2253e-05 deg tp 2458994.847954126269 (2020-May-25.34795413) 4.2604e-05 TDB period 1252.40057235491 3.43 9.7771e-06 2.677e-08 d yr n .2874479682830918 2.244e-09 deg/d Q 2.797456138920281 1.4559e-08 au   Orbit Determination Parameters    # obs. used (total)      315      data-arc span      8697 days (23.81 yr)      first obs. used      1996-10-07      last obs. used      2020-07-30      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .60766      source      ORB      producer      Otto Matic      solution date      2020-Aug-25 11:01:52   Additional Information  Earth MOID = .737339 au   Jupiter MOID = 2.50537 au   T_jup = 3.574  [ 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 16.7   n/a MPO432823   diameter diameter 3.007 km 0.792 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2017AJ....154..168M)   geometric albedo albedo 0.037   0.031 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2017AJ....154..168M)   136163 (2003 UY40)          Discovered 2003-Oct-16 by LONEOS at Anderson Mesa Reference: 20060907/Numbers.arc Last Updated: 2006-09-10 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2020-Sep-24 00:00 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin