+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   25286 (1998 WC8) Classification: Main-belt Asteroid          SPK-ID: 2025286 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2456400.5 (2013-Apr-18.0) TDB Reference: MPO257043 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e 0.2664577 n/a   a 2.7277820 n/a AU q 2.0009435 n/a AU i 8.83036 n/a deg node 107.83959 n/a deg peri 291.17706 n/a deg M 77.40284 n/a deg tp 2456046.6922819 (2012-Apr-29.19228190) n/a JED period 1645.5569141 4.51 n/a n/a d yr n 0.21877092 n/a deg/d Q 3.4546205 n/a AU   Orbit Determination Parameters    # obs. used (total)      714      first obs. used      1989-??-??      last obs. used      2013-03-03      # oppositions      13      planetary ephem.      DE403      condition code      0      fit RMS      0.51      data source      MPC:mpn      producer      MPCLINUX   Additional Information  T_jup = 3.287  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 13.3 mag n/a PDS3 (MPO 12575)   25286 (1998 WC8)          Discovered 1998-Nov-18 by Ueda, S., Kaneda, H. at Kushiro (399) Reference: 20010606/Numbers.arc Last Updated: 2004-04-19 Alternate Designations  1998 WC8 = 1989 VY1  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] 2013-May-25 08:46 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin