+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   172315 Changqiaoxiaoxue (2002 TL300) Classification: Main-belt Asteroid          SPK-ID: 2172315 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2456400.5 (2013-Apr-18.0) TDB Reference: MPO254215 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e 0.0667842 n/a   a 2.7257496 n/a AU q 2.5437126 n/a AU i 15.27549 n/a deg node 53.93437 n/a deg peri 78.90351 n/a deg M 13.33874 n/a deg tp 2456339.5968608 (2013-Feb-16.09686080) n/a JED period 1643.7182294 4.50 n/a n/a d yr n 0.21901564 n/a deg/d Q 2.9077866 n/a AU   Orbit Determination Parameters    # obs. used (total)      152      first obs. used      2000-??-??      last obs. used      2013-02-18      # oppositions      8      planetary ephem.      DE403      condition code      0      fit RMS      0.51      data source      MPC:mpu      producer      MPCLINUX   Additional Information  T_jup = 3.302  [ 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 MPO254215   172315 Changqiaoxiaoxue           Discovered 2002 Oct. 15 by NEAT at Palomar. Suzhou ChangQiao Primary School was founded in 1911. It is located in Lishu, a town with a thousand years of history. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20120703/MPCPages.arc Last Updated: 2012-07-09 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] 2013-May-22 20:22 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin