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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 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05541676730888195 8.4161e-08  
a 2.814304659342773 4.5685e-08 au
q 2.658344992899673 2.347e-07 au
i 1.785393636783718 1.1259e-05 deg
node 23.36087195151437 0.00027948 deg
peri 63.60422347157716 0.00030042 deg
M 190.6418283498056 0.00011383 deg
tp 2458211.757541672577
(2018-Apr-03.25754167)
0.00054923 JED
period 1724.467807820672
4.72
4.199e-05
1.15e-07
d
yr
n .2087600582436832 5.0832e-09 deg/d
Q 2.970264325785874 4.8216e-08 au
  Orbit Determination Parameters
   # obs. used (total)      126  
   data-arc span      6092 days (16.68 yr)  
   first obs. used      1998-10-14  
   last obs. used      2015-06-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .62154  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jul-06 15:27:51  

Additional Information
 Earth MOID = 1.67471 au 
 Jupiter MOID = 2.14308 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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