+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   12625 Koopman (9578 P-L) Classification: Main-belt Asteroid          SPK-ID: 2012625 [ 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 .1011138126040511 7.0566e-08   a 3.117566902673157 3.1895e-08 AU q 2.802337827095671 2.1055e-07 AU i 5.905697088475521 8.8416e-06 deg node 3.080409378243831 6.557e-05 deg peri 77.96765501597831 8.3125e-05 deg M 136.5223834578188 4.6843e-05 deg tp 2455638.028770321098 (2011-Mar-17.52877032) 0.00026366 JED period 2010.583434980927 5.50 3.0854e-05 8.447e-08 d yr n .1790525047290142 2.7477e-09 deg/d Q 3.432795978250642 3.512e-08 AU   Orbit Determination Parameters    # obs. used (total)      910      data-arc span      19174 days (52.50 yr)      first obs. used      1960-10-17      last obs. used      2013-04-16      planetary ephem.      DE405      SB-pert. ephem.      SB405-CPV-2      condition code      0      fit RMS      .55335      data source      ORB      producer      Otto Matic      solution date      2013-Apr-29 13:49:20   Additional Information  Earth MOID = 1.82499 AU   T_jup = 3.201  [ 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 12.6 mag n/a PDS3 (MPC 36776)   12625 Koopman           Discovered 1960 Oct. 17 by C. J. van Houten and I. van Houten-Groeneveld on Palomar Schmidt plates taken by T. Gehrels. Elizabetha Koopman (1647-1693), daughter of a Dutch merchant, was the second wife of Polish astronomer Johannes Hevelius. She assisted her husband with his astronomical observations, and after his death in 1687 she prepared his star atlas and catalogue for publication. The name was suggested by R. H. van Gent. 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 [ show close-approach data ] Alternate Designations  9578 P-L = 1982 SH10 = 1982 UV11 = 1984 BS1 = 1993 SD14  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2013-Jun-20 07:16 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin