+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   70170 (1999 OD1) Classification: Main-belt Asteroid          SPK-ID: 2070170 [ 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 .2236824158727402 4.254e-08   a 2.438942298764067 9.5882e-09 au q 1.893393793202306 1.0649e-07 au i 3.402948850540947 4.9245e-06 deg node 110.5305300470062 7.321e-05 deg peri 236.9046897436109 7.4082e-05 deg M 144.9399332864236 1.228e-05 deg tp 2458440.373304108630 (2018-Nov-17.87330411) 4.5696e-05 TDB period 1391.235706742121 3.81 8.204e-06 2.246e-08 d yr n .2587627662626758 1.5259e-09 deg/d Q 2.984490804325828 1.1733e-08 au   Orbit Determination Parameters    # obs. used (total)      626      data-arc span      8086 days (22.14 yr)      first obs. used      1998-03-22      last obs. used      2020-05-11      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .54235      source      ORB      producer      Otto Matic      solution date      2020-Nov-12 22:01:50   Additional Information  Earth MOID = .889132 au   Jupiter MOID = 2.43984 au   T_jup = 3.466  [ 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 16.0   n/a MPO453105   70170 (1999 OD1)          Discovered 1999-Jul-18 by Broughton, J. at Reedy Creek Reference: 20031109/Numbers.arc Last Updated: 2004-04-19 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Jan-26 07:22 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin