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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1008324512168084 5.6692e-08  
a 3.118262331698221 3.2871e-08 AU
q 2.803840297256049 1.7927e-07 AU
i 5.905202019570996 6.726e-06 deg
node 3.051885109889762 6.1627e-05 deg
peri 78.19587584776436 7.0742e-05 deg
M 243.6845580613539 3.6107e-05 deg
tp 2457650.333766038746
(2016-Sep-18.83376604)
0.0002054 JED
period 2011.256217358886
5.51
3.1802e-05
8.707e-08
d
yr
n .1789926101373299 2.8303e-09 deg/d
Q 3.432684366140393 3.6185e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      960  
   data-arc span      19659 days (53.82 yr)  
   first obs. used      1960-10-17  
   last obs. used      2014-08-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51401  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Sep-12 14:00:29  

Additional Information
 Earth MOID = 1.82689 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 12.8 mag n/a MPO263462  

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.arcLast 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 ]
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