+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   305777 (2009 DO47) Classification: Main-belt Asteroid          SPK-ID: 2305777 [ 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 .2132624802408497 5.0157e-08   a 2.354031995717083 1.8523e-08 au q 1.852005293744141 1.1828e-07 au i 9.447700901421516 7.6607e-06 deg node 343.6230024651049 3.2225e-05 deg peri 96.88025976664316 3.6143e-05 deg M 97.736817209517 1.7335e-05 deg tp 2458642.343645930139 (2019-Jun-07.84364593) 6.1808e-05 TDB period 1319.219216937983 3.61 1.557e-05 4.263e-08 d yr n .2728886870186668 3.2208e-09 deg/d Q 2.856058697690026 2.2473e-08 au   Orbit Determination Parameters    # obs. used (total)      206      data-arc span      8129 days (22.26 yr)      first obs. used      1998-01-24      last obs. used      2020-04-27      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .60108      source      ORB      producer      Otto Matic      solution date      2020-May-21 20:01:15   Additional Information  Earth MOID = .895476 au   Jupiter MOID = 2.44666 au   T_jup = 3.507  [ 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 MPO413264   305777 (2009 DO47)          Discovered 2009-Jan-29 by Mt. Lemmon Survey at Mount Lemmon Reference: 20111110/Numbers.arc Last Updated: 2011-11-14 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2020-Jul-03 17:56 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin