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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 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1614859157192376 6.3488e-08  
a 3.204103932041651 3.5111e-08 AU
q 2.686686274516295 2.1694e-07 AU
i .5854903995466255 5.7863e-06 deg
node 248.7276488795229 0.0006183 deg
peri 119.4157574463519 0.00061854 deg
M 352.114229006732 1.8427e-05 deg
tp 2457046.388089772313
(2015-Jan-23.88808977)
0.00010744 JED
period 2094.875990202539
5.74
3.4434e-05
9.428e-08
d
yr
n .1718478810601071 2.8247e-09 deg/d
Q 3.721521589567007 4.0781e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      930  
   data-arc span      8431 days (23.08 yr)  
   first obs. used      1991-08-03  
   last obs. used      2014-09-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .54226  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Sep-12 14:02:41  

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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