+ 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 11 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2236824139578274 4.2622e-08   a 2.438942299246356 9.609e-09 au q 1.893393798247077 1.0671e-07 au i 3.402948959093437 4.9343e-06 deg node 110.5305274044975 7.3608e-05 deg peri 236.90469177 7.4481e-05 deg M 144.9399335056594 1.2284e-05 deg tp 2458440.373303095240 (2018-Nov-17.87330310) 4.5719e-05 TDB period 1391.235707154786 3.81 8.2219e-06 2.251e-08 d yr n .2587627661859222 1.5292e-09 deg/d Q 2.984490800245635 1.1758e-08 au   Orbit Determination Parameters    # obs. used (total)      623      data-arc span      8038 days (22.01 yr)      first obs. used      1998-03-22      last obs. used      2020-03-24      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .54202      source      ORB      producer      Otto Matic      solution date      2020-May-20 13:35:22   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 ] 2020-Sep-20 15:28 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin