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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 2456800.5 (2014-May-23.0) TDB
Reference: JPL 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .161643466498599 6.6932e-08  
a 3.204661602704332 4.3076e-08 AU
q 2.686648992288247 2.1741e-07 AU
i .5854866523180545 7.1045e-06 deg
node 248.7408350954254 0.00064488 deg
peri 119.3991715231274 0.00064508 deg
M 317.7601264358866 2.7002e-05 deg
tp 2457046.362221207346
(2015-Jan-23.86222121)
0.00016027 JED
period 2095.422930191774
5.74
4.2249e-05
1.157e-07
d
yr
n .1718030259252019 3.4639e-09 deg/d
Q 3.722674213120416 5.0038e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      874  
   data-arc span      8015 days (21.94 yr)  
   first obs. used      1991-08-03  
   last obs. used      2013-07-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .5749  
   data source      ORB  
   producer      Otto Matic  
   solution date      2013-Aug-05 17:39:27  

Additional Information
 Earth MOID = 1.68438 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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