JPL Small-Body Database Browser Page 1 of 2 + View the NASA Portal Search JPL + Near-Earth Object (NEO) Project Search: [ help ] JPL Small-Body Database Browser 145523 Lulin (2006 EM67) Classification: Main-belt Asteroid SPK-ID: 2145523 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] [ hide orbit diagram ] Orbit Diagram Note: Make sure you have Java enabled on your browser to see the applet. This applet is provided as a 3D orbit visualization tool. The applet was implemented using 2-body methods, and hence should not be used for determining accurate long- term trajectories (over several years or decades) or planetary encounter circumstances. For accurate long-term ephemerides, please instead use our Horizons system. Additional Notes: the orbits shown in the applet are color coded. The planets are white lines, and the asteroid/comet is a blue line. The bright white line indicates the portion of the orbit that is above the ecliptic plane, and the darker portion is below the ecliptic plane. Likewise for the asteroid/comet orbit, the light blue indicates the portion above the ecliptic plane, and the dark blue the portion below the ecliptic plane. Orbit Viewer applet originally written and kindly provided by Osamu Ajiki (AstroArts), and further modified by Ron Baalke (JPL). Orbital Elements at Epoch 2455400.5 (2010-Jul-23.0) TDB Reference: MPO147121 (heliocentric ecliptic J2000) Orbit Determination Parameters Element Value Uncertainty (1-sigma) Units # obs. used (total) 94 e 0.1845118 n/a first obs. used 1992-??-?? a 2.7468718 n/a AU http://ssd.jpl.nasa.gov/sbdb.cgi?ID=a0145523;orb=1;cov=0;log=0;cad=0 2010/10/29 JPL Small-Body Database Browser Page 2 of 2 q 2.2400415 n/a AU last obs. used 2007-10-15 i 10.85340 n/a deg # oppositions 7 node 345.61165 n/a deg planetary ephem. DE403 peri 271.42951 n/a deg condition code 0 M 302.39467 n/a deg fit RMS 0.52 2455666.5824204 data source MPC:mpu t n/a JED p (2011-Apr-15.08242040) producer MPCW 1662.8612549 n/a d period 4.55 n/a yr Additional Information n 0.21649431 n/a deg/d T_jup = 3.297 Q 3.2537021 n/a AU [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 15.5 mag n/a MPO147121 145523 Lulin Discovered 2006 Mar. 7 by H.-C. Lin and Q.-z. Ye at Lulin Observatory. Lulin, the mountain located in central Taiwan where this minor planet was discovered, literally means "Samba Woods". At an altitude of 2862 meters Lulin Observatory hosts telescopes for optical astronomical observations, as well as instruments for atmospheric, geoscience and space-science studies. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20070402/MPCPages.arc Last Updated: 2007-07-05 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] 2010-Oct-29 02:37 UT Site Manager: Donald K. Yeomans (server date/time) Webmaster: Alan B. Chamberlin http://ssd.jpl.nasa.gov/sbdb.cgi?ID=a0145523;orb=1;cov=0;log=0;cad=0 2010/10/29.