+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   10962 Sonnenborgh (9530 P-L) Classification: Main-belt Asteroid          SPK-ID: 2010962 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2456400.5 (2013-Apr-18.0) TDB Reference: MPO253441 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e 0.1668253 n/a   a 2.3814966 n/a AU q 1.9842027 n/a AU i 9.70730 n/a deg node 176.69047 n/a deg peri 290.06657 n/a deg M 17.28701 n/a deg tp 2456336.0399295 (2013-Feb-12.53992950) n/a JED period 1342.3735730 3.68 n/a n/a d yr n 0.26818168 n/a deg/d Q 2.7787905 n/a AU   Orbit Determination Parameters    # obs. used (total)      821      first obs. used      1960-??-??      last obs. used      2013-02-08      # oppositions      14      planetary ephem.      DE403      condition code      0      fit RMS      0.52      data source      MPC:mpn      producer      MPCLINUX   Additional Information  T_jup = 3.500  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 13.8 mag n/a PDS3 (MPC 34813)   10962 Sonnenborgh           Discovered 1960 Oct. 17 by C. J. van Houten and I. van Houten-Groeneveld on Palomar Schmidt plates taken by T. Gehrels. The astronomical observatory Sonnenborgh in Utrecht, founded in 1853 by Buys Ballot, specializes in the study of the sun. In 1988, when the Institute moved to a new building, Sonnenborgh became a public observatory and now houses the "Stichting De Koepel", a school of astronomy. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20030501/MPCPages.arc Last Updated: 2003-10-02 Alternate Designations  9530 P-L = 1993 SK4  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] 2013-May-20 02:31 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin