+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   23310 Siriwon (2001 AA25) Classification: Main-belt Asteroid          SPK-ID: 2023310 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2456400.5 (2013-Apr-18.0) TDB Reference: MPO236512 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e 0.0830809 n/a   a 2.2591013 n/a AU q 2.0714131 n/a AU i 4.87871 n/a deg node 36.23039 n/a deg peri 54.34238 n/a deg M 242.21532 n/a deg tp 2456806.2778150 (2014-May-28.77781500) n/a JED period 1240.2293184 3.40 n/a n/a d yr n 0.29026890 n/a deg/d Q 2.4467895 n/a AU   Orbit Determination Parameters    # obs. used (total)      585      first obs. used      1991-??-??      last obs. used      2012-08-13      # oppositions      12      planetary ephem.      DE403      condition code      0      fit RMS      0.59      data source      MPC:mpn      producer      MPCLINUX   Additional Information  T_jup = 3.612  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 15.2 mag n/a PDS3 (MPO 10271)   23310 Siriwon           Discovered 2001 Jan. 4 by the Lincoln Laboratory Near-Earth Asteroid Research Team in Socorro. Natnaree Siriwon (b. 1989) was awarded first place in the 2007 Intel International Science and Engineering Fair for her plant sciences team project. She also received the EU Contest for Young Scientists Award. She attends the Trium Udom Suksa School, Bangkok, Thailand. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20070828/MPCPages.arc Last Updated: 2007-08-30 Alternate Designations  2001 AA25 = 1991 DD1 = 1996 TM2 = 1998 FE56  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] 2013-May-21 18:06 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin