+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   41943 Fredrick (2000 XH2) Classification: Main-belt Asteroid          SPK-ID: 2041943 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2456400.5 (2013-Apr-18.0) TDB Reference: MPO250608 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e 0.1436129 n/a   a 2.5321353 n/a AU q 2.1684880 n/a AU i 14.38078 n/a deg node 62.72965 n/a deg peri 357.60369 n/a deg M 43.86895 n/a deg tp 2456221.1573721 (2012-Oct-20.65737210) n/a JED period 1471.7321945 4.03 n/a n/a d yr n 0.24460972 n/a deg/d Q 2.8957826 n/a AU   Orbit Determination Parameters    # obs. used (total)      404      first obs. used      1998-??-??      last obs. used      2013-01-15      # oppositions      10      planetary ephem.      DE403      condition code      1      fit RMS      0.49      data source      MPC:mpn      producer      MPCLINUX   Additional Information  T_jup = 3.392  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 14.5 mag n/a MPO250608   41943 Fredrick           Discovered 2000 Dec. 3 by L. Robinson at Sunflower Observatory. Richard Fredrick (b. 1953) is an amateur astronomer and team member of the Powell Observatory Near-Earth-Object follow-up program. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20020921/MPCPages.arc Last Updated: 2003-10-02 Alternate Designations  2000 XH2 = 1998 HQ116  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] 2013-Jun-19 07:09 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin