+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   11945 Amsterdam (1993 PC5) Classification: Main-belt Asteroid          SPK-ID: 2011945 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ] [ 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 .1258171408311629 7.7342e-08   a 3.039737562503964 3.6265e-08 AU q 2.657286473512627 2.4318e-07 AU i 10.43692888924885 9.4486e-06 deg node 168.4229581394148 3.0719e-05 deg peri 159.4473690600576 4.1957e-05 deg M 259.4931649570754 3.0909e-05 deg tp 2456940.937726867946 (2014-Oct-10.43772687) 0.00016961 JED period 1935.764682962789 5.30 3.4641e-05 9.484e-08 d yr n .1859730178820088 3.3281e-09 deg/d Q 3.422188651495301 4.0828e-08 AU   Orbit Determination Parameters    # obs. used (total)      871      data-arc span      8963 days (24.54 yr)      first obs. used      1988-10-07      last obs. used      2013-04-22      planetary ephem.      DE405      SB-pert. ephem.      SB405-CPV-2      condition code      0      fit RMS      .53457      data source      ORB      producer      Otto Matic      solution date      2013-Apr-29 13:46:41   Additional Information  Earth MOID = 1.64915 AU   T_jup = 3.203  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 13.1 mag n/a PDS3 (MPC 36258)   11945 Amsterdam           Discovered 1993 Aug. 15 by E. W. Elst at Caussols. Amsterdam, Dutch financial-business capital, started its existence in Oct. 1275 as a small fishing settlement on the Amstel river. By the seventeenth century it experienced its "golden age" as a mercantile center, and in the eighteenth century it was a center of tolerance for the publication of clandestine works. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20070106/MPCPages.arc Last Updated: 2007-01-09 [ show close-approach data ] Alternate Designations  1993 PC5 = 1996 CC2  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2013-Jun-20 08:38 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin