+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   9697 Louwman (1295 T-1) Classification: Main-belt Asteroid          SPK-ID: 2009697 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2456400.5 (2013-Apr-18.0) TDB Reference: MPO250306 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e 0.0448899 n/a   a 2.9077311 n/a AU q 2.7772033 n/a AU i 5.42955 n/a deg node 193.47351 n/a deg peri 222.66614 n/a deg M 297.19683 n/a deg tp 2456716.4430711 (2014-Feb-27.94307110) n/a JED period 1811.0472069 4.96 n/a n/a d yr n 0.19878002 n/a deg/d Q 3.0382589 n/a AU   Orbit Determination Parameters    # obs. used (total)      684      first obs. used      1953-??-??      last obs. used      2012-10-11      # oppositions      17      planetary ephem.      DE403      condition code      0      fit RMS      0.56      data source      MPC:mpn      producer      MPCLINUX   Additional Information  T_jup = 3.276  [ 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 32913)   9697 Louwman           Discovered 1971 Mar. 25 by C. J. van Houten and I. van Houten-Groeneveld on Palomar Schmidt plates taken by T. Gehrels. Peter J. K. Louwman (b. 1935), a well-known popularizer of astronomy, was secretary for many years of the working group Moon and Planets of the Dutch Society for Astronomy and Meteorology. He is an expert on the history of telescope building. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20001111/MPCPages.arc Last Updated: 2013-03-29 Alternate Designations  1295 T-1 = 1990 BV3 = 1991 GF3  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] 2013-May-24 10:48 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin