+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   118279 (1998 RG23) Classification: Main-belt Asteroid          SPK-ID: 2118279 [ 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 25 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1855330576688298 4.5439e-08   a 2.143780402078191 8.2914e-09 au q 1.746038269110111 1.0129e-07 au i 2.465776108592482 3.6495e-06 deg node 68.16715445244374 7.9734e-05 deg peri 315.1662448151989 8.0276e-05 deg M 303.6933087937795 7.891e-06 deg tp 2459179.819028780216 (2020-Nov-26.31902878) 2.509e-05 TDB period 1146.486305232332 3.14 6.6513e-06 1.821e-08 d yr n .3140028784967013 1.8217e-09 deg/d Q 2.541522535046271 9.8298e-09 au   Orbit Determination Parameters    # obs. used (total)      806      data-arc span      10163 days (27.82 yr)      first obs. used      1992-11-24      last obs. used      2020-09-21      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .48651      source      ORB      producer      Otto Matic      solution date      2020-Oct-22 20:11:50   Additional Information  Earth MOID = .750598 au   Jupiter MOID = 2.91145 au   T_jup = 3.687  [ 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 16.6   n/a MPO366557   118279 (1998 RG23)          Discovered 1998-Sep-14 by LINEAR at Socorro Reference: 20051116/Numbers.arc Last Updated: 2005-11-21 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2020-Oct-30 18:03 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin