+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   259430 (2003 SN6) Classification: Mars-crossing Asteroid          SPK-ID: 2259430 [ 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 12 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .3252725109473925 6.9985e-08   a 2.317056639079886 8.4143e-09 au q 1.563381808079046 1.6553e-07 au i 7.541380907240894 6.4322e-06 deg node 211.8929312496608 4.2671e-05 deg peri 147.877565934727 4.4348e-05 deg M 261.4886256811687 1.2224e-05 deg tp 2459353.022855220938 (2021-May-18.52285522) 4.5273e-05 TDB period 1288.259642676392 3.53 7.0174e-06 1.921e-08 d yr n .279446773052745 1.5222e-09 deg/d Q 3.070731470080727 1.1151e-08 au   Orbit Determination Parameters    # obs. used (total)      260      data-arc span      8657 days (23.70 yr)      first obs. used      1996-10-11      last obs. used      2020-06-24      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .5639      source      ORB      producer      Otto Matic      solution date      2020-Nov-11 23:10:11   Additional Information  Earth MOID = .567242 au   Jupiter MOID = 2.41469 au   T_jup = 3.497  [ 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 MPO224428   259430 (2003 SN6)          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-22 23:35 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin