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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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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05403484166646938 5.5948e-08  
a 2.815421090455139 2.6238e-08 au
q 2.663290257607957 1.6157e-07 au
i 1.784491278386372 6.7364e-06 deg
node 23.337670342505 0.00019426 deg
peri 63.36570971546738 0.00020506 deg
M 164.8559809824921 6.4325e-05 deg
tp 2458210.338848780301
(2018-Apr-01.83884878)
0.00030649 TDB
period 1725.494050891011
4.72
2.4121e-05
6.604e-08
d
yr
n .2086358975356091 2.9165e-09 deg/d
Q 2.967551923302321 2.7656e-08 au
  Orbit Determination Parameters
   # obs. used (total)      209  
   data-arc span      7951 days (21.77 yr)  
   first obs. used      1998-10-14  
   last obs. used      2020-07-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .63655  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 10:27:51  

Additional Information
 Earth MOID = 1.68015 au 
 Jupiter MOID = 2.13757 au 
 T_jup = 3.316 
[ show covariance matrix ]

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

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