+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   10445 Coster (4090 T-2) Classification: Main-belt Asteroid          SPK-ID: 2010445 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2456400.5 (2013-Apr-18.0) TDB Reference: MPO253437 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e 0.1534306 n/a   a 2.4721491 n/a AU q 2.0928458 n/a AU i 3.79584 n/a deg node 102.22529 n/a deg peri 150.28052 n/a deg M 164.17831 n/a deg tp 2455753.0239639 (2011-Jul-10.52396390) n/a JED period 1419.7452330 3.89 n/a n/a d yr n 0.25356662 n/a deg/d Q 2.8514524 n/a AU   Orbit Determination Parameters    # obs. used (total)      652      first obs. used      1973-??-??      last obs. used      2013-02-06      # oppositions      14      planetary ephem.      DE403      condition code      0      fit RMS      0.58      data source      MPC:mpn      producer      MPCLINUX   Additional Information  T_jup = 3.464  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 15.1 mag n/a PDS3 (MPC 34170)   10445 Coster           Discovered 1973 Sept. 29 by C. J. van Houten and I. van Houten-Groeneveld on Palomar Schmidt plates taken by T. Gehrels. With de Hevesy, Dutch physicist Dirk Coster (1889-1950) discovered the metallic element 72 hafnium, which closely resembles 40 zirconium in that it is resistant to high temperatures. 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: 20010705/MPCPages.arc Last Updated: 2009-05-11 Alternate Designations  4090 T-2 = 1996 PG6  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] 2013-May-25 08:11 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin