+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   259440 (2003 SM33) Classification: Main-belt Asteroid          SPK-ID: 2259440 [ 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 14 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1999950260023123 4.2705e-08   a 2.388367739297029 1.1644e-08 au q 1.910706071173236 1.0161e-07 au i 3.091508216564815 4.4792e-06 deg node 137.0711047416684 8.8979e-05 deg peri 259.2319804276602 8.9682e-05 deg M 162.3662198707074 1.1381e-05 deg tp 2458392.444248996417 (2018-Sep-30.94424900) 4.0961e-05 TDB period 1348.187267866435 3.69 9.8588e-06 2.699e-08 d yr n .2670252186624752 1.9527e-09 deg/d Q 2.866029407420822 1.3972e-08 au   Orbit Determination Parameters    # obs. used (total)      326      data-arc span      7031 days (19.25 yr)      first obs. used      2001-01-26      last obs. used      2020-04-27      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .613      source      ORB      producer      Otto Matic      solution date      2020-May-21 14:49:38   Additional Information  Earth MOID = .92057 au   Jupiter MOID = 2.56249 au   T_jup = 3.504  [ 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 17.2   n/a MPO418380   259440 (2003 SM33)          Discovered 2003-Sep-16 by LONEOS at Anderson Mesa Reference: 20110119/Numbers.arc Last Updated: 2011-01-25 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Jan-22 23:24 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin