+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   9682 Gravesande (4073 P-L) Classification: Main-belt Asteroid          SPK-ID: 2009682 [ 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 .02213295877895349 7.3495e-08   a 2.155883916583788 8.9539e-09 AU q 2.10816782672583 1.6021e-07 AU i 2.767404831038911 7.9145e-06 deg node 260.7391339446979 0.00013645 deg peri 19.78655476944299 0.00021346 deg M 299.8398501115449 0.0001666 deg tp 2456593.715914403912 (2013-Oct-28.21591440) 0.00053515 JED period 1156.209373054713 3.17 7.203e-06 1.972e-08 d yr n .3113622916313829 1.9398e-09 deg/d Q 2.203600006441745 9.1521e-09 AU   Orbit Determination Parameters    # obs. used (total)      528      data-arc span      19203 days (52.57 yr)      first obs. used      1960-09-24      last obs. used      2013-04-22      planetary ephem.      DE405      SB-pert. ephem.      SB405-CPV-2      condition code      0      fit RMS      .58596      data source      ORB      producer      Otto Matic      solution date      2013-Apr-29 13:36:52   Additional Information  Earth MOID = 1.09208 AU   T_jup = 3.699  [ 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 15.4 mag n/a PDS3 (MPC 32909)   9682 Gravesande           Discovered 1960 Sept. 24 by C. J. van Houten and I. van Houten-Groeneveld on Palomar Schmidt plates taken by T. Gehrels. Willem J. 's Gravesande (1688-1742) was a professor of mathematics, astronomy and philosophy at Leiden University. During his life he wrote many textbooks on mathematics and philosophy, and he is also important as an exponent of Newton's philosophy in Europe. 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  4073 P-L = 1997 EK49  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] 2013-May-24 16:59 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin