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172850 Coppens (2005 EU27)
Classification: Main-belt Asteroid          SPK-ID: 2172850
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .055785459129329 9.0365e-08  
a 2.814526539578041 5.5723e-08 AU
q 2.657516884335998 2.5504e-07 AU
i 1.785419115421559 1.3699e-05 deg
node 23.36768846985758 0.00034719 deg
peri 63.88137533623738 0.0003977 deg
M 65.05839442170901 0.00019588 deg
tp 2456488.821181061679
(2013-Jul-15.32118106)
0.00094067 JED
period 1724.671747822211
4.72
5.1219e-05
1.402e-07
d
yr
n .2087353726612508 6.199e-09 deg/d
Q 2.971536194820083 5.8832e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      113  
   data-arc span      5614 days (15.37 yr)  
   first obs. used      1998-10-14  
   last obs. used      2014-02-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .59268  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Mar-22 13:30:13  

Additional Information
 Earth MOID = 1.67372 AU 
 T_jup = 3.317 
[ 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 16.7 mag n/a MPO245260  

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 | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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