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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 ]

[ show orbit diagram ]
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 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456890.5 (2014-Aug-21.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05572768824294796 5.5985e-08  
q 2.657210516146018 1.6241e-07 au
tp 2456488.092729881208
(2013-Jul-14.59272988)
0.00031122 TDB
node 23.36529487137483 0.00019534 deg
peri 63.71454966322555 0.00020667 deg
i 1.785510430216702 6.927e-06 deg
  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
 Jupiter MOID = 2.13757 au 
 T_jup = 3.316 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.134361314744546E-15 -8.978509126973217E-15 -2.71582714217453E-12 5.832485131956185E-15 -6.025219588599099E-13 -7.316343222187449E-16
q -8.978509126973217E-15 2.637700663168119E-14 7.403395199464415E-12 -1.646549476162065E-14 1.676883170683462E-12 2.380904721840581E-15
tp -2.71582714217453E-12 7.403395199464415E-12 9.685676386815451E-8 -9.209249209127018E-11 2.103722150399833E-8 -3.3363203032328E-12
node 5.832485131956185E-15 -1.646549476162065E-14 -9.209249209127018E-11 3.815927858272072E-8 -3.81598280579867E-8 7.769820341042619E-11
peri -6.025219588599099E-13 1.676883170683462E-12 2.103722150399833E-8 -3.81598280579867E-8 4.271278951175E-8 -7.835556676590965E-11
i -7.316343222187449E-16 2.380904721840581E-15 -3.3363203032328E-12 7.769820341042619E-11 -7.835556676590965E-11 4.798371276000665E-11

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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