+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   351660 (2005 YJ205) Classification: Main-belt Asteroid          SPK-ID: 2351660 [ 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 8 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1887098263973657 6.6333e-08   a 2.315585398753369 2.0215e-08 au q 1.878611680146346 1.4947e-07 au i 4.173577021426185 7.5181e-06 deg node 124.0872229428238 0.0001048 deg peri 16.11555472957569 0.00010863 deg M 14.65241889521928 3.1041e-05 deg tp 2458948.116265589263 (2020-Apr-08.61626559) 0.00011045 TDB period 1287.032845752071 3.52 1.6853e-05 4.614e-08 d yr n .2797131411122891 3.6628e-09 deg/d Q 2.752559117360392 2.4029e-08 au   Orbit Determination Parameters    # obs. used (total)      91      data-arc span      5142 days (14.08 yr)      first obs. used      2005-12-26      last obs. used      2020-01-24      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .55415      source      ORB      producer      Otto Matic      solution date      2020-Feb-25 23:56:35   Additional Information  Earth MOID = .892251 au   Jupiter MOID = 2.27114 au   T_jup = 3.554  [ 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 18.2   n/a MPO455545   351660 (2005 YJ205)          Discovered 2005-Dec-26 by Mt. Lemmon Survey at Mount Lemmon Reference: 20130127/Numbers.arc Last Updated: 2013-01-31 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Jan-26 13:32 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin