+ View the NASA Portal + Near-Earth Object (NEO) Project Search JPL JPL Small-Body Database Browser Search: [ help ]   23975 Akran (1999 CU81) Classification: Main-belt Asteroid          SPK-ID: 2023975 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2455200.5 (2010-Jan-04.0) TDB Reference: MPO143019 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e 0.1294735 n/a   a 2.3565080 n/a AU q 2.0514027 n/a AU i 4.38164 n/a deg node 256.34500 n/a deg peri 83.38274 n/a deg M 183.85820 n/a deg tp 2455846.9898847 (2011-Oct-12.48988471) n/a JED period 1321.3011249 3.62 n/a n/a d yr n 0.27245871 n/a deg/d Q 2.6616133 n/a AU   Orbit Determination Parameters    # obs. used (total)      331      first obs. used      1996-??-??      last obs. used      2007-06-14      # oppositions      9      planetary ephem.      DE403      quality code      0      fit RMS      0.56      data source      MPC:mpn      producer      MPC   Additional Information  T_jup = 3.539  [ 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 PDS3 (MPO 11259)   23975 Akran           Discovered 1999 Feb. 12 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro. Erkan Akran mentored a finalist in the 2007 Discovery Channel Young Scientist Challenge (DCYSC), a middle school science competition. He teaches at the Lisa Academy, Little Rock, Arkansas. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20071026/MPCPages.arc Last Updated: 2007-10-28 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] 2009-Nov-23 20:00 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin