+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   487638 (2015 OQ19) Classification: Main-belt Asteroid          SPK-ID: 2487638 [ 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 14 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1717139841326843 6.9743e-08   a 2.695634682159384 3.6027e-08 au q 2.232756511119554 2.0812e-07 au i 13.34144889558211 5.7191e-06 deg node 169.5539433043666 2.825e-05 deg peri 135.0806056608155 3.8038e-05 deg M 45.07933559731729 2.0779e-05 deg tp 2458798.074609500256 (2019-Nov-10.57460950) 9.2243e-05 TDB period 1616.553119390799 4.43 3.2408e-05 8.873e-08 d yr n .22269605352385 4.4645e-09 deg/d Q 3.158512853199214 4.2214e-08 au   Orbit Determination Parameters    # obs. used (total)      102      data-arc span      4726 days (12.94 yr)      first obs. used      2006-07-26      last obs. used      2019-07-04      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .54503      source      ORB      producer      Otto Matic      solution date      2019-Sep-24 08:19:32   Additional Information  Earth MOID = 1.23976 au   Jupiter MOID = 2.24335 au   T_jup = 3.310  [ 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 17.0   n/a MPO477318   487638 (2015 OQ19)          Discovered 2010-May-07 by Spacewatch at Kitt Peak Reference: Last Updated: 2017-03-14 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2020-Aug-09 03:37 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin