+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   18241 Genzel (1325 T-2) Classification: Main-belt Asteroid          SPK-ID: 2018241 [ 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 .06622805151728754 9.583e-08   a 2.727755082102724 2.2594e-08 AU q 2.547101177998682 2.6224e-07 AU i 5.189818576239467 9.2053e-06 deg node 17.79179403798107 7.6475e-05 deg peri 356.3388380399905 9.5709e-05 deg M 273.206758263021 5.9157e-05 deg tp 2456797.225298971276 (2014-May-19.72529897) 0.00027241 JED period 1645.53258723149 4.51 2.0445e-05 5.598e-08 d yr n .2187741542120892 2.7182e-09 deg/d Q 2.908408986206766 2.4091e-08 AU   Orbit Determination Parameters    # obs. used (total)      627      data-arc span      14431 days (39.51 yr)      first obs. used      1973-09-19      last obs. used      2013-03-24      planetary ephem.      DE405      SB-pert. ephem.      SB405-CPV-2      condition code      0      fit RMS      .49856      data source      ORB      producer      Otto Matic      solution date      2013-Apr-29 14:18:22   Additional Information  Earth MOID = 1.54699 AU   T_jup = 3.347  [ 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 13.9 mag n/a PDS3 (MPO 4285)   18241 Genzel           Discovered 1973 Sept. 29 by C. J. van Houten and I. van Houten-Groeneveld on Palomar Schmidt plates taken by T. Gehrels. Reinhard Genzel (b. 1952), director of the Max-Planck Institut für Extraterrestrische Physik and professor at the University of California at Berkeley, is known for his pioneering work in infrared astronomy and his quest to discover the presence of a black hole in the Galactic Center. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20050919/MPCPages.arc Last Updated: 2005-09-26 Alternate Designations  1325 T-2 = 1991 RJ33  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] 2013-May-18 09:01 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin