+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   233113 (2005 SP218) Classification: Main-belt Asteroid          SPK-ID: 2233113 [ 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 22 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1280331098002331 4.3418e-08   a 2.263752087089947 1.0376e-08 au q 1.973916867563053 9.8049e-08 au i 5.916515054074537 3.9461e-06 deg node 72.30200668657235 4.8452e-05 deg peri 324.1747222873043 5.2044e-05 deg M 101.8771507073951 1.9851e-05 deg tp 2458648.440545406126 (2019-Jun-13.94054541) 6.7518e-05 TDB period 1244.061134157678 3.41 8.5536e-06 2.342e-08 d yr n .2893748467142225 1.9896e-09 deg/d Q 2.553587306616841 1.1705e-08 au   Orbit Determination Parameters    # obs. used (total)      541      data-arc span      6262 days (17.14 yr)      first obs. used      2003-01-05      last obs. used      2020-02-27      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .51391      source      ORB      producer      Otto Matic      solution date      2020-Nov-12 01:55:14   Additional Information  Earth MOID = .984967 au   Jupiter MOID = 2.83673 au   T_jup = 3.600  [ 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 16.5   n/a MPO454685   233113 (2005 SP218)          Discovered 2005-Sep-30 by NEAT at Palomar Reference: 20100228/Numbers.arc Last Updated: 2010-03-03 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2020-Nov-25 12:10 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin