+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   10441 van Rijckevorsel (9076 P-L) Classification: Main-belt Asteroid          SPK-ID: 2010441 [ 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 .1875965193009596 1.0588e-07   a 2.575511119350285 1.8041e-08 AU q 2.092354197939253 2.6783e-07 AU i 13.60565211796773 1.1948e-05 deg node 196.015028394164 3.293e-05 deg peri 194.4113026258027 4.2711e-05 deg M 239.9638881775614 3.4453e-05 deg tp 2456903.888151769321 (2014-Sep-03.38815177) 0.0001475 JED period 1509.710135438422 4.13 1.5863e-05 4.343e-08 d yr n .2384563708949701 2.5055e-09 deg/d Q 3.058668040761317 2.1425e-08 AU   Orbit Determination Parameters    # obs. used (total)      660      data-arc span      19166 days (52.47 yr)      first obs. used      1960-10-17      last obs. used      2013-04-08      planetary ephem.      DE405      SB-pert. ephem.      SB405-CPV-2      condition code      0      fit RMS      .52798      data source      ORB      producer      Otto Matic      solution date      2013-Apr-29 13:40:00   Additional Information  Earth MOID = 1.09867 AU   T_jup = 3.364  [ 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 13.3 mag n/a PDS3 (MPC 34169)   10441 van Rijckevorsel           Discovered 1960 Oct. 17 by C. J. van Houten and I. van Houten-Groeneveld on Palomar Schmidt plates taken by T. Gehrels. At his own expense, Elie van Rijckevorsel (1845-1928) made records at more than 300 places in The Netherlands of the declination, inclination and horizontal intensity of the earth's magnetic field. Carried out during 1889-1892, this was the first overall surveillance of the earth's magnetic field in The Netherlands. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20010804/MPCPages.arc Last Updated: 2009-05-11 Alternate Designations  9076 P-L = 1985 VC4 = 1993 QB5  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] 2013-May-25 04:36 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin