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JPL Small-Body Database Browser
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172850 Coppens (2005 EU27)
Classification: Main-belt Asteroid          SPK-ID: 2172850
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05403479673716397 5.5953e-08  
a 2.815421095820289 2.6799e-08 au
q 2.663290389178116 1.6173e-07 au
i 1.784485631237236 6.9247e-06 deg
node 23.33764021480192 0.00019545 deg
peri 63.36575535984827 0.00020752 deg
M 164.8559592982931 6.7472e-05 deg
tp 2458210.338950454881
(2018-Apr-01.83895045)
0.00032237 TDB
period 1725.49405582324
4.72
2.4637e-05
6.745e-08
d
yr
n .2086358969392349 2.9789e-09 deg/d
Q 2.967551802462462 2.8247e-08 au
  Orbit Determination Parameters
   # obs. used (total)      206  
   data-arc span      7425 days (20.33 yr)  
   first obs. used      1998-10-14  
   last obs. used      2019-02-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .63854  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 03:01:51  

Additional Information
 Earth MOID = 1.68015 au 
 Jupiter MOID = 2.13757 au 
 T_jup = 3.316 
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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 16.6   n/a MPO433109  

172850 Coppens           Discovered 2005 Mar. 3 by J.-C. Merlin at Tenagra II.
A native of Vannes (Brittany, France), Yves Coppens (b. 1934) is an internationally known paleoanthropologist. A professor and former chair of anthropology of the Paris Muséum National d´Histoire Naturelle, he codiscovered Lucy, the Australopithecus afarensis in Ethiopia.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20080321/MPCPages.arcLast Updated: 2008-03-26

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Alternate Designations
 2005 EU27 = 2003 YO173 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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