+ 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 16 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1717139151675189 5.6768e-08   a 2.695634714551781 3.0475e-08 au q 2.232756723854618 1.6631e-07 au i 13.34144835604556 5.4251e-06 deg node 169.5539506733983 2.7047e-05 deg peri 135.080621930098 3.6066e-05 deg M 45.07931101461281 2.0678e-05 deg tp 2458798.074716238355 (2019-Nov-10.57471624) 9.1564e-05 TDB period 1616.553148529037 4.43 2.7414e-05 7.506e-08 d yr n .2226960495097718 3.7765e-09 deg/d Q 3.158512705248945 3.5708e-08 au   Orbit Determination Parameters    # obs. used (total)      117      data-arc span      5216 days (14.28 yr)      first obs. used      2006-07-26      last obs. used      2020-11-05      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .50865      source      ORB      producer      Otto Matic      solution date      2020-Dec-18 07:16:44   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 ] 2021-Jan-26 10:07 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin