+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   74354 (1998 WA6) Classification: Main-belt Asteroid          SPK-ID: 2074354 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2456400.5 (2013-Apr-18.0) TDB Reference: MPO257338 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e 0.2848773 n/a   a 2.6834964 n/a AU q 1.9190292 n/a AU i 5.68307 n/a deg node 50.06405 n/a deg peri 333.60874 n/a deg M 113.86326 n/a deg tp 2455892.6551456 (2011-Nov-27.15514560) n/a JED period 1605.6465236 4.40 n/a n/a d yr n 0.22420875 n/a deg/d Q 3.4479636 n/a AU   Orbit Determination Parameters    # obs. used (total)      307      first obs. used      1996-??-??      last obs. used      2013-03-11      # oppositions      10      planetary ephem.      DE403      condition code      0      fit RMS      0.54      data source      MPC:mpn      producer      MPCLINUX   Additional Information  T_jup = 3.309  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 15.2 mag n/a MPO257338   74354 (1998 WA6)          Discovered 1998-Nov-18 by Ueda, S., Kaneda, H. at Kushiro (399) Reference: 20040415/Numbers.arc Last Updated: 2004-04-19 Alternate Designations  1998 WA6 = 2002 QA43  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] 2013-May-23 20:57 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin