+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   58980 (1998 RG47) Classification: Mars-crossing Asteroid          SPK-ID: 2058980 [ 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 21 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2657525290294116 3.0234e-08   a 2.212622858987245 7.242e-09 au q 1.624612738423098 6.6724e-08 au i 5.497478020602253 4.1529e-06 deg node 215.2565283901749 3.6779e-05 deg peri 107.5246695263702 3.7743e-05 deg M 232.4456145948683 1.1192e-05 deg tp 2459426.443909689340 (2021-Jul-30.94390969) 3.8889e-05 TDB period 1202.152376032641 3.29 5.902e-06 1.616e-08 d yr n .299462869414339 1.4702e-09 deg/d Q 2.800632979551393 9.1666e-09 au   Orbit Determination Parameters    # obs. used (total)      977      data-arc span      8924 days (24.43 yr)      first obs. used      1995-12-16      last obs. used      2020-05-22      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .52635      source      ORB      producer      Otto Matic      solution date      2020-Nov-12 22:48:42   Additional Information  Earth MOID = .62351 au   Jupiter MOID = 2.56618 au   T_jup = 3.603  [ 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 15.5   n/a MPO468491   58980 (1998 RG47)          Discovered 1998-Sep-14 by LINEAR at Socorro Reference: 20030614/Numbers.arc Last Updated: 2004-04-19 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Jan-16 10:11 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin