+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   5732 (1988 WC) Classification: Mars-crossing Asteroid          SPK-ID: 2005732 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2456400.5 (2013-Apr-18.0) TDB Reference: MPO231446 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e 0.4036170 n/a   a 2.2225992 n/a AU q 1.3255204 n/a AU i 22.47609 n/a deg node 240.71995 n/a deg peri 253.09184 n/a deg M 97.63258 n/a deg tp 2456072.2668485 (2012-May-24.76684850) n/a JED period 1210.2920411 3.31 n/a n/a d yr n 0.29744887 n/a deg/d Q 3.1196780 n/a AU   Orbit Determination Parameters    # obs. used (total)      434      first obs. used      1955-??-??      last obs. used      2012-02-23      # oppositions      18      planetary ephem.      DE403      condition code      0      fit RMS      0.63      data source      MPC:mpn      producer      MPCLINUX   Additional Information  T_jup = 3.446  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 14.1 mag n/a PDS3 (MPC 28114)   rotation period rot_per 3.1 h n/a Asteroid Lightcurve DataBase (Rev. 2013-May-01) Result based on less than full coverage, so that the period may be wrong by 30 percent or so. Published Reference List: [Krugly, Yu.N.; Bel'skaya, I.N.; Shevchenko, V.G.; et al. (2002) Icarus 158, 294-304.] SMASSII spectral type spec_B S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002) 5732 (1988 WC)          Discovered 1988-Nov-29 by Arai and Mori at Yorii Reference: DISCOVERY.DB Last Updated: 2003-08-29 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] 2013-May-24 14:24 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin