+ View the NASA Portal + Near-Earth Object (NEO) Project Search JPL JPL Small-Body Database Browser Search: [ help ]   5138 Gyoda (1990 VD2) Classification: Main-belt Asteroid          SPK-ID: 2005138 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2455200.5 (2010-Jan-04.0) TDB Reference: MPO65990 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e 0.1711216 n/a   a 3.0953852 n/a AU q 2.5656979 n/a AU i 0.79978 n/a deg node 193.69976 n/a deg peri 262.45758 n/a deg M 154.06574 n/a deg tp 2454349.2168238 (2007-Sep-05.71682381) n/a JED period 1989.1634794 5.45 n/a n/a d yr n 0.18098060 n/a deg/d Q 3.6250725 n/a AU   Orbit Determination Parameters    # obs. used (total)      379      first obs. used      1951-??-??      last obs. used      2004-06-22      # oppositions      12      planetary ephem.      DE403      quality code      0      fit RMS      0.62      data source      MPC:mpn      producer      MPC   Additional Information  T_jup = 3.201  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 11.7 mag n/a PDS3 (MPC 19848)   5138 Gyoda (1990 VD2)           Discovered 1990-Nov-13 by Hioki and Hayakawa at Okutama Reference: DISCOVERY.DB Last Updated: 2003-08-29 Alternate Designations  1990 VD2 = 1957 VB = 1987 HX  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] 2010-Feb-10 06:15 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin