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13052 Las Casas (1990 SN8)
Classification: Main-belt Asteroid          SPK-ID: 2013052
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03683140844311541 6.4487e-08  
a 2.648844741756224 2.527e-08 AU
q 2.551284059170202 1.7463e-07 AU
i 4.130984384812084 6.8574e-06 deg
node 59.85234233241147 8.1065e-05 deg
peri 144.8208595868645 0.00011361 deg
M 15.63408965840188 8.0606e-05 deg
tp 2456932.116192245754
(2014-Oct-01.61619225)
0.00035239 JED
period 1574.646898503514
4.31
2.2533e-05
6.169e-08
d
yr
n .2286226838170073 3.2716e-09 deg/d
Q 2.746405424342246 2.6201e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      910  
   data-arc span      8677 days (23.76 yr)  
   first obs. used      1990-09-14  
   last obs. used      2014-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .53911  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jul-14 12:29:45  

Additional Information
 Earth MOID = 1.54867 AU 
 T_jup = 3.387 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.8 mag n/a MPO279653  

13052 Las Casas           Discovered 1990 Sept. 22 by E. W. Elst at the European Southern Observatory.
Bartolome de Las Casas (1474-1565) was a Catholic priest who fought for the rights of the Indians and against the military conquest of the New World. He wrote Brief Report on the Destruction of the Indians, an account of the atrocities of the Spanish conquerors against the Indians.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20050523/MPCPages.arcLast Updated: 2005-07-21
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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