+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   5874 (1989 XB) Classification: Main-belt Asteroid          SPK-ID: 2005874 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2456400.5 (2013-Apr-18.0) TDB Reference: JPL 1 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2231888234366279 6.6639e-08   a 2.383601281783217 1.3858e-08 AU q 1.851608116159982 1.6275e-07 AU i 7.078718397830386 5.7319e-06 deg node 135.32261592 6.2372e-05 deg peri 296.6175828460088 6.4413e-05 deg M 122.8962816406694 1.505e-05 deg tp 2455941.634839923416 (2012-Jan-15.13483992) 5.5104e-05 JED period 1344.153422888462 3.68 1.1722e-05 3.209e-08 d yr n .2678265694003836 2.3356e-09 deg/d Q 2.915594447406451 1.6951e-08 AU   Orbit Determination Parameters    # obs. used (total)      879      data-arc span      12531 days (34.31 yr)      first obs. used      1978-12-31      last obs. used      2013-04-22      planetary ephem.      DE405      SB-pert. ephem.      SB405-CPV-2      condition code      0      fit RMS      .54073      data source      ORB      producer      Otto Matic      solution date      2013-Apr-29 13:19:02   Additional Information  Earth MOID = .878359 AU   T_jup = 3.492  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 13.6 mag n/a PDS3 (MPC 23232)   5874 (1989 XB)          Discovered 1989-Dec-02 by Kawasato, N. at Uenohara Reference: DISCOVERY.DB Last Updated: 2003-08-29 Alternate Designations  1989 XB = 1978 YD2 = 1983 CN2  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] 2013-Jun-19 02:48 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin