+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   227227 (2005 RW29) Classification: Main-belt Asteroid          SPK-ID: 2227227 [ 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 14 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1944448458483072 5.3132e-08   a 2.398923389379203 8.3309e-09 au q 1.932465100729466 1.2637e-07 au i 1.902394248212801 6.8505e-06 deg node 1.652799787556407 0.00012062 deg peri 48.63845337289879 0.00012274 deg M 1.132848946495011 1.6826e-05 deg tp 2459196.229364562994 (2020-Dec-12.72936456) 6.3439e-05 TDB period 1357.134825502606 3.72 7.0695e-06 1.936e-08 d yr n .2652647277448476 1.3818e-09 deg/d Q 2.865381678028942 9.9508e-09 au   Orbit Determination Parameters    # obs. used (total)      314      data-arc span      7083 days (19.39 yr)      first obs. used      2001-08-20      last obs. used      2021-01-10      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .56039      source      ORB      producer      Otto Matic      solution date      2021-Feb-24 13:11:13   Additional Information  Earth MOID = .942723 au   Jupiter MOID = 2.51386 au   T_jup = 3.500  [ 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 17.61   n/a E2021B55   227227 (2005 RW29)          Discovered 2005-Sep-08 by LINEAR at Socorro Reference: 20091202/Numbers.arc Last Updated: 2009-12-04 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Apr-11 11:13 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin