+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   9030 (1989 UX5) Classification: Jupiter Trojan          SPK-ID: 2009030 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2456400.5 (2013-Apr-18.0) TDB Reference: MPO253427 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e 0.0212092 n/a   a 5.2298240 n/a AU q 5.1189036 n/a AU i 4.23879 n/a deg node 76.81911 n/a deg peri 355.82071 n/a deg M 328.04516 n/a deg tp 2456788.2601862 (2014-May-10.76018620) n/a JED period 4368.4670940 11.96 n/a n/a d yr n 0.08240877 n/a deg/d Q 5.3407444 n/a AU   Orbit Determination Parameters    # obs. used (total)      823      first obs. used      1954-??-??      last obs. used      2013-02-05      # oppositions      19      planetary ephem.      DE403      condition code      0      fit RMS      0.58      data source      MPC:mpn      producer      MPCLINUX   Additional Information  T_jup = 2.994   MPC Jupiter Trojan  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 11.5 mag n/a PDS3 (MPC 32181)   9030 (1989 UX5)          Discovered 1989-Oct-30 by Bus, S. J. at Cerro Tololo (807) Reference: 19980808/Numbers.arc Last Updated: 2004-04-19 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] 2013-May-21 00:49 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin