+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   259505 (2003 SB300) Classification: Main-belt Asteroid          SPK-ID: 2259505 [ 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 6 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2154793104800377 4.2694e-08   a 2.327623090751128 1.3154e-08 au q 1.826068472098661 1.0222e-07 au i 5.434913889418069 9.8919e-06 deg node 321.0116602125291 5.2695e-05 deg peri 93.30665389539119 5.9993e-05 deg M 216.284415138205 2.9002e-05 deg tp 2459518.308026415390 (2021-Oct-30.80802642) 0.00010762 TDB period 1297.081939226031 3.55 1.0996e-05 3.011e-08 d yr n .2775460740859688 2.3528e-09 deg/d Q 2.829177709403595 1.5989e-08 au   Orbit Determination Parameters    # obs. used (total)      172      data-arc span      8186 days (22.41 yr)      first obs. used      1996-11-04      last obs. used      2019-04-04      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .57766      source      ORB      producer      Otto Matic      solution date      2019-Jul-13 12:49:25   Additional Information  Earth MOID = .847151 au   Jupiter MOID = 2.55858 au   T_jup = 3.536  [ 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 17.5   n/a MPO470764   259505 (2003 SB300)          Discovered 2003-Sep-17 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-24 23:24 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin