+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   21441 Stevencondie (1998 FC144) Classification: Main-belt Asteroid          SPK-ID: 2021441 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2456400.5 (2013-Apr-18.0) TDB Reference: MPO257020 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e 0.1494259 n/a   a 2.4821506 n/a AU q 2.1112530 n/a AU i 5.14109 n/a deg node 238.49595 n/a deg peri 52.56718 n/a deg M 232.53209 n/a deg tp 2456906.2535920 (2014-Sep-05.75359200) n/a JED period 1428.3696430 3.91 n/a n/a d yr n 0.25203560 n/a deg/d Q 2.8530482 n/a AU   Orbit Determination Parameters    # obs. used (total)      775      first obs. used      1991-??-??      last obs. used      2013-03-18      # oppositions      13      planetary ephem.      DE403      condition code      0      fit RMS      0.50      data source      MPC:mpn      producer      MPCLINUX   Additional Information  T_jup = 3.457  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 14.6 mag n/a PDS3 (MPO 8750)   21441 Stevencondie           Discovered 1998 Mar. 29 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro. Steven Condie mentored a finalist in the 2005 Intel Science Talent Search, a science competition for high school seniors. He teaches at the Illinois Mathematics and Science Academy, Aurora, Illinois. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20050224/MPCPages.arc Last Updated: 2005-02-28 Alternate Designations  1998 FC144 = 1991 RO21 = 1998 HO60  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] 2013-May-18 08:12 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin