+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   160457 (2005 YW168) Classification: Main-belt Asteroid          SPK-ID: 2160457 [ 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 12 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .17016236441672 5.4974e-08   a 2.266297341042677 1.2232e-08 au q 1.880658827019529 1.2701e-07 au i 9.888625228282418 5.9398e-06 deg node 46.44182611487706 3.7034e-05 deg peri 349.6726244309112 4.1261e-05 deg M 141.3662267184615 1.8603e-05 deg tp 2458511.153004544265 (2019-Jan-27.65300454) 6.3059e-05 TDB period 1246.159867553844 3.41 1.0089e-05 2.762e-08 d yr n .2888874929880898 2.3389e-09 deg/d Q 2.651935855065824 1.4314e-08 au   Orbit Determination Parameters    # obs. used (total)      386      data-arc span      8837 days (24.19 yr)      first obs. used      1996-02-10      last obs. used      2020-04-21      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .53635      source      ORB      producer      Otto Matic      solution date      2020-May-21 01:33:17   Additional Information  Earth MOID = .889014 au   Jupiter MOID = 2.7694 au   T_jup = 3.577  [ 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 16.6   n/a MPO454062   160457 (2005 YW168)          Discovered 2005-Dec-29 by NEAT at Palomar Reference: 20070730/Numbers.arc Last Updated: 2007-08-06 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2020-Aug-08 05:51 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin