+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   9707 Petruskoning (3226 T-3) Classification: Main-belt Asteroid          SPK-ID: 2009707 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2456400.5 (2013-Apr-18.0) TDB Reference: JPL 1 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1419031843794617 7.7668e-08   a 2.60578754029707 1.9077e-08 AU q 2.236017990512591 1.9884e-07 AU i 11.11864961436539 9.1668e-06 deg node 32.40410124704153 4.7583e-05 deg peri 58.12799995397001 6.1914e-05 deg M 105.3151764524813 3.6479e-05 deg tp 2455951.035505204748 (2012-Jan-24.53550520) 0.00015498 JED period 1536.409315131319 4.21 1.6872e-05 4.619e-08 d yr n .2343125601065692 2.5731e-09 deg/d Q 2.975557090081549 2.1784e-08 AU   Orbit Determination Parameters    # obs. used (total)      740      data-arc span      12979 days (35.53 yr)      first obs. used      1977-10-07      last obs. used      2013-04-20      planetary ephem.      DE405      SB-pert. ephem.      SB405-CPV-2      condition code      0      fit RMS      .56758      data source      ORB      producer      Otto Matic      solution date      2013-Apr-29 13:36:55   Additional Information  Earth MOID = 1.27319 AU   T_jup = 3.372  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 13.6 mag n/a PDS3 (MPC 32915)   9707 Petruskoning           Discovered 1977 Oct. 16 by C. J. van Houten and I. van Houten-Groeneveld on Palomar Schmidt plates taken by T. Gehrels. Petrus A. Koning (b. 1934) has organized youth astronomy camps. Founder of the Bussloo Public Observatory, he was long a member of the observatory board. In 1995 he received the Van der Bilt Prize for his efforts to promote astronomy in the Dutch province of Gelderland. The name was suggested by W. A. Fröger. 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  3226 T-3 = 1992 GR3  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] 2013-Jun-20 01:32 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin