+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   437550 (2013 YB129) Classification: Main-belt Asteroid          SPK-ID: 2437550 [ 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 20 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .126754888095099 6.7676e-08   a 2.757028446572634 3.9462e-08 au q 2.407561614352315 1.7778e-07 au i 4.024925884031303 7.3346e-06 deg node 270.9621629040312 0.00012243 deg peri 190.4200324750758 0.00012796 deg M 128.5528102241366 3.5138e-05 deg tp 2458403.410585681880 (2018-Oct-11.91058568) 0.00016144 TDB period 1672.092494747849 4.58 3.59e-05 9.829e-08 d yr n .2152990944764021 4.6224e-09 deg/d Q 3.106495278792953 4.4464e-08 au   Orbit Determination Parameters    # obs. used (total)      168      data-arc span      5603 days (15.34 yr)      first obs. used      2004-12-18      last obs. used      2020-04-21      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .46322      source      ORB      producer      Otto Matic      solution date      2020-May-22 03:41:59   Additional Information  Earth MOID = 1.42458 au   Jupiter MOID = 2.03921 au   T_jup = 3.328  [ 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 16.9   n/a MPO368901   437550 (2013 YB129)          Discovered 2008-Sep-23 by Spacewatch at Kitt Peak Reference: Last Updated: 2015-06-04 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2020-Sep-25 04:48 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin