+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   19519 (1998 WB8) Classification: Main-belt Asteroid          SPK-ID: 2019519 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2456400.5 (2013-Apr-18.0) TDB Reference: MPO257007 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e 0.1442719 n/a   a 2.3254585 n/a AU q 1.9899602 n/a AU i 1.12255 n/a deg node 25.31304 n/a deg peri 141.12485 n/a deg M 294.08030 n/a deg tp 2456637.6778044 (2013-Dec-11.17780440) n/a JED period 1295.2730306 3.55 n/a n/a d yr n 0.27793368 n/a deg/d Q 2.6609568 n/a AU   Orbit Determination Parameters    # obs. used (total)      1055      first obs. used      1983-??-??      last obs. used      2013-03-05      # oppositions      16      planetary ephem.      DE403      condition code      0      fit RMS      0.53      data source      MPC:mpn      producer      MPCLINUX   Additional Information  T_jup = 3.560  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 14.6 mag n/a PDS3 (MPO 6573)   19519 (1998 WB8)          Discovered 1998-Nov-18 by Ueda, S., Kaneda, H. at Kushiro (399) Reference: 20001211/Numbers.arc Last Updated: 2004-04-19 Alternate Designations  1998 WB8 = 1996 ED14  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] 2013-Jun-18 05:39 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin