+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   5190 (1990 UR2) Classification: Main-belt Asteroid          SPK-ID: 2005190 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2456400.5 (2013-Apr-18.0) TDB Reference: MPO256902 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e 0.2096489 n/a   a 3.1455143 n/a AU q 2.4860607 n/a AU i 14.08695 n/a deg node 312.09274 n/a deg peri 148.72401 n/a deg M 334.34537 n/a deg tp 2456545.7108894 (2013-Sep-10.21088940) n/a JED period 2037.6797552 5.58 n/a n/a d yr n 0.17667153 n/a deg/d Q 3.8049679 n/a AU   Orbit Determination Parameters    # obs. used (total)      644      first obs. used      1969-??-??      last obs. used      2013-02-25      # oppositions      17      planetary ephem.      DE403      condition code      0      fit RMS      0.53      data source      MPC:mpn      producer      MPCLINUX   Additional Information  T_jup = 3.129  [ 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 28113)   5190 (1990 UR2)          Discovered 1990-Oct-16 by Ueda and Kaneda at Kushiro (399) Reference: DISCOVERY.DB Last Updated: 2003-08-29 Alternate Designations  1990 UR2 = 1969 AN = 1986 AN1 = 1989 PS  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] 2013-May-23 15:16 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin