+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   70384 (1999 RS219) Classification: Main-belt Asteroid          SPK-ID: 2070384 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 19 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1371372335257521 5.173e-08   a 2.34001043169398 1.0464e-08 au q 2.019107874670067 1.2056e-07 au i 7.023885492421002 4.9711e-06 deg node 38.09432047886492 3.3257e-05 deg peri 328.4458023207569 3.571e-05 deg M 329.5280857234779 1.349e-05 deg tp 2459311.168074615561 (2021-Apr-06.66807462) 4.9165e-05 TDB period 1307.450083380488 3.58 8.7703e-06 2.401e-08 d yr n .2753451199216717 1.847e-09 deg/d Q 2.660912988717894 1.1899e-08 au   Orbit Determination Parameters    # obs. used (total)      782      data-arc span      10151 days (27.79 yr)      first obs. used      1992-10-23      last obs. used      2020-08-08      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .51642      source      ORB      producer      Otto Matic      solution date      2020-Nov-12 22:00:55   Additional Information  Earth MOID = 1.02068 au   Jupiter MOID = 2.80573 au   T_jup = 3.542  [ 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 15.8   n/a MPO324919   70384 (1999 RS219)          Discovered 1999-Sep-04 by LONEOS at Anderson Mesa Reference: 20031109/Numbers.arc Last Updated: 2004-04-19 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Mar-07 07:37 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin