+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   18024 Dobson (1999 KK4) Classification: Main-belt Asteroid          SPK-ID: 2018024 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2456400.5 (2013-Apr-18.0) TDB Reference: MPO253489 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e 0.0718687 n/a   a 3.1807879 n/a AU q 2.9521888 n/a AU i 9.53508 n/a deg node 182.86480 n/a deg peri 42.02819 n/a deg M 173.97378 n/a deg tp 2455399.1594403 (2010-Jul-21.65944030) n/a JED period 2072.0513256 5.67 n/a n/a d yr n 0.17374087 n/a deg/d Q 3.4093870 n/a AU   Orbit Determination Parameters    # obs. used (total)      625      first obs. used      1993-??-??      last obs. used      2013-02-03      # oppositions      15      planetary ephem.      DE403      condition code      0      fit RMS      0.59      data source      MPC:mpn      producer      MPCLINUX   Additional Information  T_jup = 3.174  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 14.3 mag n/a PDS3 (MPO 4223)   18024 Dobson           Discovered 1999 May 20 by J. M. Roe at Oaxaca. John Dobson (b. 1915) is one of the most important popularizers of astronomy of the twentieth century. His telescope design has spread around the world and enabled amateur astronomers to use larger apertures than before. He demonstrates a passion for sharing his knowledge of the universe with the public at large. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20011101/MPCPages.arc Last Updated: 2009-05-11 Alternate Designations  1999 KK4 = 1995 UD27  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] 2013-May-22 10:52 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin