+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   3744 Horn-d'Arturo (1983 VE) Classification: Main-belt Asteroid          SPK-ID: 2003744 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2456400.5 (2013-Apr-18.0) TDB Reference: MPO236414 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e 0.2772036 n/a   a 2.6283379 n/a AU q 1.8997532 n/a AU i 3.75400 n/a deg node 228.16166 n/a deg peri 185.95038 n/a deg M 320.58507 n/a deg tp 2456570.9034954 (2013-Oct-05.40349540) n/a JED period 1556.3964804 4.26 n/a n/a d yr n 0.23130353 n/a deg/d Q 3.3569226 n/a AU   Orbit Determination Parameters    # obs. used (total)      856      first obs. used      1955-??-??      last obs. used      2012-08-11      # oppositions      17      planetary ephem.      DE403      condition code      0      fit RMS      0.59      data source      MPC:mpn      producer      MPCLINUX   Additional Information  T_jup = 3.343  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 12.80 mag n/a IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 16 diameter diameter 15.75 km 0.5 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 16 geometric albedo albedo 0.0540   0.003 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 16 SMASSII spectral type spec_B Ch   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) 3744 Horn-d'Arturo (1983 VE)          Discovered 1983-Nov-05 by Osservatorio San Vittore at Bologna Reference: DISCOVERY.DB Last Updated: 2003-08-29 Alternate Designations  1983 VE = 1966 VQ = 1979 YF8  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] 2013-May-19 13:44 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin