+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   20468 Petercook (1999 NK4) Classification: Main-belt Asteroid          SPK-ID: 2020468 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2456400.5 (2013-Apr-18.0) TDB Reference: MPO250414 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e 0.2341772 n/a   a 3.1864294 n/a AU q 2.4402403 n/a AU i 1.96194 n/a deg node 52.69225 n/a deg peri 274.94731 n/a deg M 129.45891 n/a deg tp 2455653.3903708 (2011-Apr-01.89037080) n/a JED period 2077.5662835 5.69 n/a n/a d yr n 0.17327967 n/a deg/d Q 3.9326185 n/a AU   Orbit Determination Parameters    # obs. used (total)      390      first obs. used      1994-??-??      last obs. used      2013-01-01      # oppositions      14      planetary ephem.      DE403      condition code      0      fit RMS      0.52      data source      MPC:mpn      producer      MPCLINUX   Additional Information  T_jup = 3.154  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 14.9 mag n/a PDS3 (MPO 7843)   20468 Petercook           Discovered 1999 July 13 by J. Broughton at Reedy Creek. British comedy writer and performer Peter E. Cook (1937-1995) was the prime instigator of the new genre of satirical sketch comedy with his 1960's revue Beyond The Fringe. His most famous sketch included diminutive Dudley Moore as an ever hopping one-legged man auditioning for the role of Tarzan! NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20050407/MPCPages.arc Last Updated: 2005-04-15 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] 2013-May-23 15:10 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin