+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   70335 (1999 RC169) Classification: Main-belt Asteroid          SPK-ID: 2070335 [ 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 29 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1881394581074303 3.9106e-08   a 2.434517215402997 8.5176e-09 au q 1.976488465743867 9.4866e-08 au i 2.825181944868746 3.7754e-06 deg node 183.7561580552561 7.573e-05 deg peri 146.419573219117 7.6147e-05 deg M 228.5939518765457 8.3848e-06 deg tp 2459706.942980073400 (2022-May-07.44298007) 3.3481e-05 TDB period 1387.451151830827 3.80 7.2813e-06 1.994e-08 d yr n .2594685942816493 1.3617e-09 deg/d Q 2.892545965062127 1.012e-08 au   Orbit Determination Parameters    # obs. used (total)      958      data-arc span      8414 days (23.04 yr)      first obs. used      1998-03-02      last obs. used      2021-03-15      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .51689      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 12:49:04   Additional Information  Earth MOID = .964501 au   Jupiter MOID = 2.46614 au   T_jup = 3.479  [ 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 15.6   n/a MPO453107   70335 (1999 RC169)          Discovered 1999-Sep-09 by LINEAR at Socorro Reference: 20031109/Numbers.arc Last Updated: 2004-04-19 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Apr-14 15:31 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin