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11950 Morellet (1993 SG5)
Classification: Outer Main-belt Asteroid          SPK-ID: 2011950
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 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1357809334099736 3.4755e-08  
a 3.219200278446662 1.582e-08 au
q 2.782094259805528 1.0755e-07 au
i 1.940961229230831 3.7262e-06 deg
node 134.7815687074112 0.00011575 deg
peri 351.3843553317798 0.00011669 deg
M 145.4392063359772 1.538e-05 deg
tp 2458348.186402758525
(2018-Aug-17.68640276)
8.7981e-05 TDB
period 2109.698634480447
5.78
1.5551e-05
4.258e-08
d
yr
n .1706404858571929 1.2579e-09 deg/d
Q 3.656306297087797 1.7968e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1829  
   data-arc span      13354 days (36.56 yr)  
   first obs. used      1983-12-29  
   last obs. used      2020-07-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51162  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:56:11  

Additional Information
 Earth MOID = 1.79734 au 
 Jupiter MOID = 1.40468 au 
 T_jup = 3.174 
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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 13.5   n/a MPO344398  
diameter diameter 10.848 km 0.137 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.066   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

11950 Morellet           Discovered 1993 Sept. 19 by E. W. Elst at Caussols.
Abbé André Morellet (1727-1819) left his Mémoirs sur le XVIIIe siècle et la Révolution (1821), a precious document about the eighteenth century. Besides several articles for Diderot's Encyclopédie, he refuted, in 1770, Galiani's Dialogues sur le commerce des blés.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20030910/MPCPages.arcLast Updated: 2003-10-02

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Alternate Designations
 1993 SG5 = 1983 YL 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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