+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   18533 (1996 XJ6) Classification: Main-belt Asteroid          SPK-ID: 2018533 [ 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 .2273751660341952 8.1357e-08   a 2.44274012874103 2.5496e-08 AU q 1.887321686390147 2.0202e-07 AU i 7.398401539258324 8.0834e-06 deg node 83.66706663118967 8.8521e-05 deg peri 349.7056611507546 9.3612e-05 deg M 103.4841085571323 3.6135e-05 deg tp 2455999.646675859994 (2012-Mar-13.14667586) 0.00013539 JED period 1394.486541967282 3.82 2.1832e-05 5.977e-08 d yr n .2581595369806347 4.0418e-09 deg/d Q 2.998158571091913 3.1293e-08 AU   Orbit Determination Parameters    # obs. used (total)      405      data-arc span      5983 days (16.38 yr)      first obs. used      1996-12-03      last obs. used      2013-04-21      planetary ephem.      DE405      SB-pert. ephem.      SB405-CPV-2      condition code      0      fit RMS      .60316      data source      ORB      producer      Otto Matic      solution date      2013-Apr-29 14:19:20   Additional Information  Earth MOID = .902101 AU   T_jup = 3.453  [ 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 14.7 mag n/a PDS3 (MPO 5219)   18533 (1996 XJ6)          Discovered 1996-Dec-03 by Shimizu, Y., Urata, T. at Nachi-Katsuura (905) Reference: 20001111/Numbers.arc Last Updated: 2004-04-19 Alternate Designations  1996 XJ6 = 1998 HB151  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] 2013-May-24 20:20 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin