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JPL Small-Body Database Browser
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12625 Koopman (9578 P-L)
Classification: Main-belt Asteroid          SPK-ID: 2012625
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1005972901123337 3.5006e-08  
a 3.118461679704141 2.018e-08 au
q 2.804752885406748 1.1088e-07 au
i 5.889891918127558 4.69e-06 deg
node 2.458218484353675 3.8889e-05 deg
peri 82.09506488218501 4.56e-05 deg
M 237.87316156938 2.3579e-05 deg
tp 2459682.866438089777
0.00013225 TDB
period 2011.449087432768
n .1789754472281829 1.7372e-09 deg/d
Q 3.432170474001534 2.221e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1698  
   data-arc span      21497 days (58.86 yr)  
   first obs. used      1960-10-17  
   last obs. used      2019-08-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51799  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 20:24:24  

Additional Information
 Earth MOID = 1.82866 au 
 Jupiter MOID = 1.78172 au 
 T_jup = 3.201 
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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.9   n/a MPO350902  
diameter diameter 13.760 km 1.628 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  
rotation period rot_per 12.983 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.097   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  

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

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Alternate Designations
 9578 P-L = 1982 SH10 = 1982 UV11 = 1984 BS1 = 1993 SD14 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
FirstGov 2020-Mar-28 15:38 UT
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