+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   305788 (2009 DF70) Classification: Main-belt Asteroid          SPK-ID: 2305788 [ 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 10 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1417413284940269 6.2156e-08   a 2.422239613530721 2.3137e-08 au q 2.078908152778018 1.5483e-07 au i 1.590026463601016 1.0149e-05 deg node 192.7234325779567 0.00029756 deg peri 292.9932741399379 0.00030236 deg M 20.12865286674448 4.898e-05 deg tp 2458923.509650731183 (2020-Mar-15.00965073) 0.00018702 TDB period 1376.968738060249 3.77 1.9729e-05 5.402e-08 d yr n .2614438440389982 3.746e-09 deg/d Q 2.765571074283424 2.6417e-08 au   Orbit Determination Parameters    # obs. used (total)      100      data-arc span      5441 days (14.90 yr)      first obs. used      2005-01-13      last obs. used      2019-12-07      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .67602      source      ORB      producer      Otto Matic      solution date      2019-Dec-14 18:49:21   Additional Information  Earth MOID = 1.09486 au   Jupiter MOID = 2.2924 au   T_jup = 3.498  [ 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 17.8   n/a MPO507377   305788 (2009 DF70)          Discovered 2009-Feb-26 by CSS at Catalina Reference: 20111110/Numbers.arc Last Updated: 2011-11-14 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Feb-27 04:33 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin