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13964 La Billardiere (1991 PO5)
Classification: Outer Main-belt Asteroid          SPK-ID: 2013964
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1614859142125368 6.3309e-08  
a 3.204103929290036 3.4012e-08 AU
q 2.686686277036653 2.1679e-07 AU
i .5854905008761752 5.4713e-06 deg
node 248.7276481726195 0.00061811 deg
peri 119.415757057515 0.00061835 deg
M 352.1142307522035 1.7556e-05 deg
tp 2457046.388079556129
(2015-Jan-23.88807956)
0.00010233 JED
period 2094.875987503988
5.74
3.3356e-05
9.132e-08
d
yr
n .1718478812814759 2.7363e-09 deg/d
Q 3.72152158154342 3.9504e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      963  
   data-arc span      8460 days (23.16 yr)  
   first obs. used      1991-08-03  
   last obs. used      2014-10-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .53407  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Oct-09 14:26:30  

Additional Information
 Earth MOID = 1.68584 AU 
 T_jup = 3.173 
[ 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 13.3 mag n/a MPO266032  

13964 La Billardière           Discovered 1991 Aug. 3 by E. W. Elst at the European Southern Observatory.
French naturalist Jacques-Julien Houtou de La Billardière (1755-1834) joined Admiral d´Entrecasteaux on the Recherche in 1791, in order to find the long-lost La Pérouse, who perished with his ships in 1788, after leaving Botany Bay. An account of this voyage is given in Relation du voyage á la recherche de La Pérouse (1799).
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20051215/MPCPages.arcLast Updated: 2006-03-22

[ show close-approach data ]
Alternate Designations
 1991 PO5 = 1997 XF4 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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