+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   7403 Choustnik (1988 AV1) Classification: Main-belt Asteroid          SPK-ID: 2007403 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2456400.5 (2013-Apr-18.0) TDB Reference: MPO190133 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e 0.2726491 n/a   a 2.7187866 n/a AU q 1.9775119 n/a AU i 8.59215 n/a deg node 109.91615 n/a deg peri 338.71617 n/a deg M 242.39360 n/a deg tp 2456935.4208824 (2014-Oct-04.92088240) n/a JED period 1637.4237938 4.48 n/a n/a d yr n 0.21985756 n/a deg/d Q 3.4600613 n/a AU   Orbit Determination Parameters    # obs. used (total)      542      first obs. used      1951-??-??      last obs. used      2011-01-13      # oppositions      15      planetary ephem.      DE403      condition code      0      fit RMS      0.55      data source      MPC:mpn      producer      MPCLINUX   Additional Information  T_jup = 3.289  [ 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 (MPC 28827)   7403 Choustník           Discovered 1988 Jan. 14 by A. Mrkos at Klet. Choustník is a castle founded in the mid-thirteenth century. Under the brothers Benes and Jan of Choustník two similar palaces with square towers were built. Choustník is a rare example of twin castles. It was abandoned in the seventeenth century. The name was suggested by M. Tichy. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20010309/MPCPages.arc Last Updated: 2009-05-11 Alternate Designations  1988 AV1 = 1951 YQ2 = 1979 BQ2  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] 2013-May-22 19:04 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin