+ View the NASA Portal + Near-Earth Object (NEO) Project Search JPL JPL Small-Body Database Browser Search: [ help ]   3454 Lieske (1981 WB1) Classification: Main-belt Asteroid          SPK-ID: 2003454 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2455200.5 (2010-Jan-04.0) TDB Reference: MPO114548 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e 0.1569682 n/a   a 2.2679924 n/a AU q 1.9119897 n/a AU i 5.36087 n/a deg node 193.68668 n/a deg peri 245.23625 n/a deg M 67.91771 n/a deg tp 2454965.1352791 (2009-May-13.63527910) n/a JED period 1247.5582513 3.42 n/a n/a d yr n 0.28856368 n/a deg/d Q 2.6239951 n/a AU   Orbit Determination Parameters    # obs. used (total)      586      first obs. used      1957-??-??      last obs. used      2007-01-25      # oppositions      16      planetary ephem.      DE403      quality code      0      fit RMS      0.63      data source      MPC:mpn      producer      MPC   Additional Information  T_jup = 3.593  [ 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 28110)   3454 Lieske (1981 WB1)           Discovered 1981-Nov-24 by Bowell, E. at Flagstaff (AM) (688) Reference: DISCOVERY.DB Last Updated: 2003-08-29 Alternate Designations  1981 WB1 = 1933 UJ1 = 1938 EL = 1957 WE = 1964 VX1 = 1967 RQ = 1981 WA4  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] 2010-Feb-10 05:56 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin