+ 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 2459000.5 (2020-May-31.0) TDB Reference: JPL 18 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1374782121158738 5.1932e-08   a 2.340132390775409 1.0242e-08 au q 2.01841517357716 1.2126e-07 au i 7.024973991926903 4.9828e-06 deg node 38.12888976350282 3.3276e-05 deg peri 328.4781813702855 3.5715e-05 deg M 274.4353498275204 1.3402e-05 deg tp 2459311.278486302024 (2021-Apr-06.77848630) 4.9116e-05 TDB period 1307.552299263803 3.58 8.5844e-06 2.35e-08 d yr n .2753235952418058 1.8076e-09 deg/d Q 2.661849607973657 1.1651e-08 au   Orbit Determination Parameters    # obs. used (total)      778      data-arc span      9717 days (26.60 yr)      first obs. used      1992-10-23      last obs. used      2019-06-01      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .51555      source      ORB      producer      Otto Matic      solution date      2020-Feb-23 16:09:39   Additional Information  Earth MOID = 1.02151 au   Jupiter MOID = 2.80381 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 ] 2020-Sep-27 08:06 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin