+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   30724 Peterburgtrista (1978 SX2) Classification: Main-belt Asteroid          SPK-ID: 2030724 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2456400.5 (2013-Apr-18.0) TDB Reference: MPO250507 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e 0.0374175 n/a   a 3.1739248 n/a AU q 3.0551645 n/a AU i 21.28390 n/a deg node 351.60580 n/a deg peri 48.58777 n/a deg M 354.67221 n/a deg tp 2456431.0659554 (2013-May-18.56595540) n/a JED period 2065.3486644 5.65 n/a n/a d yr n 0.17430471 n/a deg/d Q 3.2926851 n/a AU   Orbit Determination Parameters    # obs. used (total)      646      first obs. used      1989-??-??      last obs. used      2013-01-22      # oppositions      13      planetary ephem.      DE403      condition code      0      fit RMS      0.50      data source      MPC:mpn      producer      MPCLINUX   Additional Information  T_jup = 3.094  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 11.5 mag n/a PDS3 (MPO 18519)   30724 Peterburgtrista           Discovered 1978 Sept. 26 by L. V. Zhuravleva at the Crimean Astrophysical Observatory. This name is being proposed by the Russian Academy of Sciences on the occasion of the three-hundredth anniversary of St. Petersburg, one of the largest centers of culture and science in the world. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20030318/MPCPages.arc Last Updated: 2003-10-02 Alternate Designations  1978 SX2 = 2001 QS81 = A919 FA  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] 2013-May-21 06:10 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin