+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   11433 Gemmafrisius (3474 T-3) Classification: Main-belt Asteroid          SPK-ID: 2011433 [ 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 .158144476508737 7.247e-08   a 2.420228212030365 1.6396e-08 AU q 2.037482488407147 1.8145e-07 AU i 3.211411776177117 6.6391e-06 deg node 59.65849879064536 0.00012285 deg peri 142.0386482447893 0.00012418 deg M 333.1220826219637 2.331e-05 deg tp 2456503.177673407079 (2013-Jul-29.67767341) 8.9381e-05 JED period 1375.253964310276 3.77 1.3975e-05 3.826e-08 d yr n .2617698325854664 2.6601e-09 deg/d Q 2.802973935653584 1.8989e-08 AU   Orbit Determination Parameters    # obs. used (total)      791      data-arc span      21941 days (60.07 yr)      first obs. used      1953-03-16      last obs. used      2013-04-11      planetary ephem.      DE405      SB-pert. ephem.      SB405-CPV-2      condition code      0      fit RMS      .58697      data source      ORB      producer      Otto Matic      solution date      2013-Apr-29 13:44:32   Additional Information  Earth MOID = 1.0356 AU   T_jup = 3.495  [ 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 14.8 mag n/a PDS3 (MPC 35599)   11433 Gemmafrisius           Discovered 1977 Oct. 16 by C. J. van Houten and I. van Houten-Groeneveld on Palomar Schmidt plates taken by T. Gehrels. Gemma Frisius (Gemma Phrysius, Gemma Reyneri, 1508-1555) born in Dokkum, Friesland, studied in Leuwen, Belgium, as a geographer, scientist and physician. He devised new globes, described how an accurate clock could be used to determine longitude and improved the astrolabe. Mercator was one of his students. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20090409/MPCPages.arc Last Updated: 2009-04-10 Alternate Designations  3474 T-3 = 1953 FB1  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] 2013-May-18 11:42 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin