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8169 Mirabeau (1991 PO2)
Classification: Main-belt Asteroid          SPK-ID: 2008169
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.

Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1160906093997657 3.5128e-08  
a 3.150997083868575 1.6584e-08 au
q 2.785195912185388 1.1709e-07 au
i 2.16485100753563 3.6377e-06 deg
node 79.71197672363502 0.00011859 deg
peri 359.7391371765014 0.00012012 deg
M 327.892025864802 1.9168e-05 deg
tp 2459382.713618400395
0.00010905 TDB
period 2043.009700578782
n .1762106170607083 1.3911e-09 deg/d
Q 3.516798255551763 1.8509e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1827  
   data-arc span      14392 days (39.40 yr)  
   first obs. used      1981-10-24  
   last obs. used      2021-03-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49331  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 23:48:29  

Additional Information
 Earth MOID = 1.80042 au 
 Jupiter MOID = 1.70889 au 
 T_jup = 3.196 
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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 13.49   n/a E2021B10  
diameter diameter 10.948 km 0.115 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  
geometric albedo albedo 0.086   0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  

8169 Mirabeau           Discovered 1991 Aug. 2 by E. W. Elst at the European Southern Observatory.
Named in memory of French politician and orator Honoré-Gabriel Mirabeau (1749-1791), one of the greatest figures of the early French Revolution. In 1789 he was elected deputy at the States General to represent Marseille and Aix-en-Provence. From May to October 1789 he played a decisive part in the battle between the Third Estate (common people) and the privileged orders (clergy and nobility). This made him very popular in Paris, but his intrigues with the court and his Machiavellian game in general led him to political defeat, since he was too much a monarchist for the revolution and too revolutionary for the monarchy. However, he was given a magnificent funeral at the new church of Sainte-Geneviève, which, in honor of him, was converted into the Panthèon, for the burial of great men.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 19990402/MPCPages.arcLast Updated: 2010-06-11

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Alternate Designations
 1991 PO2 = 1981 UU7 = 1989 EA7 
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