+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   48816 (1997 WP3) Classification: Main-belt Asteroid          SPK-ID: 2048816 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2456400.5 (2013-Apr-18.0) TDB Reference: MPO137878 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e 0.0622258 n/a   a 2.5378769 n/a AU q 2.3799555 n/a AU i 9.06954 n/a deg node 37.11170 n/a deg peri 331.21143 n/a deg M 340.68576 n/a deg tp 2456479.7281240 (2013-Jul-06.22812400) n/a JED period 1476.7407184 4.04 n/a n/a d yr n 0.24378010 n/a deg/d Q 2.6957983 n/a AU   Orbit Determination Parameters    # obs. used (total)      381      first obs. used      1979-??-??      last obs. used      2007-05-09      # oppositions      9      planetary ephem.      DE403      condition code      1      fit RMS      0.48      data source      MPC:mpn      producer      MPCW   Additional Information  T_jup = 3.427  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 13.7 mag n/a MPO137878   48816 (1997 WP3)          Discovered 1997-Nov-19 by BAO Schmidt CCD Asteroid Program at Xinglong (327) Reference: 20021120/Numbers.arc Last Updated: 2004-04-19 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] 2013-May-26 04:12 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin