+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   12180 Kistemaker (5167 T-3) Classification: Main-belt Asteroid          SPK-ID: 2012180 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ] [ 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 .09203192679963092 9.0353e-08   a 3.138281710097962 4.3955e-08 AU q 2.849459597477606 2.8743e-07 AU i 10.33680075573118 1.0215e-05 deg node 136.9317239321016 4.4367e-05 deg peri 171.318189963644 6.995e-05 deg M 195.2710803343332 6.0235e-05 deg tp 2457329.688155098480 (2015-Nov-03.18815510) 0.00034902 JED period 2030.655798109819 5.56 4.2662e-05 1.168e-07 d yr n .1772826297470483 3.7245e-09 deg/d Q 3.427103822718319 4.8e-08 AU   Orbit Determination Parameters    # obs. used (total)      563      data-arc span      12961 days (35.49 yr)      first obs. used      1977-10-11      last obs. used      2013-04-06      planetary ephem.      DE405      SB-pert. ephem.      SB405-CPV-2      condition code      0      fit RMS      .61968      data source      ORB      producer      Otto Matic      solution date      2013-Apr-29 13:47:35   Additional Information  Earth MOID = 1.83533 AU   T_jup = 3.180  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 14.0 mag n/a PDS3 (MPC 36323)   12180 Kistemaker           Discovered 1977 Oct. 16 by C. J. van Houten and I. van Houten-Groeneveld on Palomar Schmidt plates taken by T. Gehrels. Jacob Kistemaker (1917-2010), Teylers professor at Leiden University, was a pioneer in isotope separation, uranium enrichment, atomic and molecular collisions, and vacuum science and technology. Name suggested by H. Habing and F. Saris. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20110715/MPCPages.arc Last Updated: 2011-07-20 [ show close-approach data ] Alternate Designations  5167 T-3 = 1993 PJ9 = 1997 GN28  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2013-Jun-19 20:57 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin