+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   259446 (2003 SD51) Classification: Main-belt Asteroid          SPK-ID: 2259446 [ 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 17 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .08928868920114183 6.6291e-08   a 2.207931297527284 9.6036e-09 au q 2.010788006124896 1.4833e-07 au i 2.35560099657768 5.162e-06 deg node 36.09607936314374 0.00014271 deg peri 297.6726664451427 0.00014472 deg M 56.09014726878214 2.5396e-05 deg tp 2458813.792897206877 (2019-Nov-26.29289721) 8.4123e-05 TDB period 1198.330906200592 3.28 7.8183e-06 2.141e-08 d yr n .3004178546486881 1.96e-09 deg/d Q 2.405074588929671 1.0461e-08 au   Orbit Determination Parameters    # obs. used (total)      266      data-arc span      6803 days (18.63 yr)      first obs. used      2002-04-02      last obs. used      2020-11-16      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .53656      source      ORB      producer      Otto Matic      solution date      2020-Dec-18 00:16:44   Additional Information  Earth MOID = 1.00187 au   Jupiter MOID = 2.84824 au   T_jup = 3.653  [ 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 17.0   n/a MPO476070   259446 (2003 SD51)          Discovered 2003-Sep-18 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-22 21:54 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin