+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   10655 Pietkeyser (9535 P-L) Classification: Main-belt Asteroid          SPK-ID: 2010655 [ 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 .07061604066835171 7.5557e-08   a 2.738169933444542 1.8058e-08 AU q 2.544811214067565 2.0731e-07 AU i 6.38064033772661 7.9374e-06 deg node 167.79100549 5.54e-05 deg peri 198.9358380824969 7.2999e-05 deg M 207.9102344697498 4.7312e-05 deg tp 2457099.676000444272 (2015-Mar-18.17600044) 0.00021988 JED period 1654.965797878588 4.53 1.6372e-05 4.482e-08 d yr n .2175271540121643 2.1519e-09 deg/d Q 2.93152865282152 1.9333e-08 AU   Orbit Determination Parameters    # obs. used (total)      794      data-arc span      19180 days (52.51 yr)      first obs. used      1960-10-17      last obs. used      2013-04-22      planetary ephem.      DE405      SB-pert. ephem.      SB405-CPV-2      condition code      0      fit RMS      .58285      data source      ORB      producer      Otto Matic      solution date      2013-Apr-29 13:41:04   Additional Information  Earth MOID = 1.54295 AU   T_jup = 3.339  [ 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 14.3 mag n/a PDS3 (MPC 34477)   10655 Pietkeyser           Discovered 1960 Oct. 17 by C. J. van Houten and I. van Houten-Groeneveld on Palomar Schmidt plates taken by T. Gehrels. Dutch navigator Pieter Dirkszoon Keyser (c. 1540-1596) sailed to the East Indies in 1595. He is credited with having invented twelve new constellations in the southern sky, first depicted in 1598 on a globe by Petrus Plancius. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20021120/MPCPages.arc Last Updated: 2003-10-02 Alternate Designations  9535 P-L = 1978 RC10  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] 2013-May-21 12:04 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin