+ View the NASA Portal + Near-Earth Object (NEO) Project Search JPL JPL Small-Body Database Browser Search: [ help ]   4556 Gumilyov (1987 QW10) Classification: Main-belt Asteroid          SPK-ID: 2004556 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2455200.5 (2010-Jan-04.0) TDB Reference: MPO47600 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e 0.1442865 n/a   a 2.3111344 n/a AU q 1.9776689 n/a AU i 4.74901 n/a deg node 111.94019 n/a deg peri 213.49215 n/a deg M 145.73210 n/a deg tp 2454680.9959390 (2008-Aug-02.49593901) n/a JED period 1283.3237286 3.51 n/a n/a d yr n 0.28052158 n/a deg/d Q 2.6445999 n/a AU   Orbit Determination Parameters    # obs. used (total)      339      first obs. used      1980-??-??      last obs. used      2003-05-02      # oppositions      13      planetary ephem.      DE403      quality code      1      fit RMS      0.62      data source      MPC:mpn      producer      MPC   Additional Information  T_jup = 3.566  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 13.1 mag n/a PDS3 (MPC 28112)   4556 Gumilyov (1987 QW10)           Discovered 1987-Aug-27 by Karachkina, L. G. at Nauchnyj Reference: DISCOVERY.DB Last Updated: 2003-08-29 Alternate Designations  1987 QW10 = 1980 TJ1 = 1984 YK3 = 1984 YR2  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] 2010-Feb-10 08:05 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin