+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   120879 (1998 RP41) Classification: Main-belt Asteroid          SPK-ID: 2120879 [ 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 20 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1257406675818214 3.9212e-08   a 2.833934460235887 2.0473e-08 au q 2.477593649322698 1.1182e-07 au i 14.49881430710289 7.354e-06 deg node 345.3588028130891 1.6727e-05 deg peri 291.1757989941593 3.2797e-05 deg M 261.2650255454907 2.7402e-05 deg tp 2459478.416084917252 (2021-Sep-20.91608492) 0.00013324 TDB period 1742.541500828363 4.77 1.8883e-05 5.17e-08 d yr n .2065947926226517 2.2388e-09 deg/d Q 3.190275271149076 2.3048e-08 au   Orbit Determination Parameters    # obs. used (total)      473      data-arc span      21752 days (59.55 yr)      first obs. used      1960-09-28      last obs. used      2020-04-18      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .55549      source      ORB      producer      Otto Matic      solution date      2020-May-20 20:41:02   Additional Information  Earth MOID = 1.50486 au   Jupiter MOID = 2.16288 au   T_jup = 3.254  [ 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 15.26   n/a E2021B55   120879 (1998 RP41)          Discovered 1998-Sep-14 by LINEAR at Socorro Reference: 20060314/Numbers.arc Last Updated: 2006-03-23 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Feb-28 17:29 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin