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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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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1357809326905455 3.4714e-08  
a 3.21920028053307 1.5776e-08 au
q 2.782094263924624 1.0735e-07 au
i 1.940961418288216 3.7139e-06 deg
node 134.7815627462341 0.00011523 deg
peri 351.3843615344156 0.00011617 deg
M 145.4392061199893 1.5287e-05 deg
tp 2458348.186403195679
(2018-Aug-17.68640320)
8.7474e-05 TDB
period 2109.698636531434
5.78
1.5508e-05
4.246e-08
d
yr
n .1706404856913013 1.2543e-09 deg/d
Q 3.656306297141516 1.7918e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1853  
   data-arc span      13354 days (36.56 yr)  
   first obs. used      1983-12-29  
   last obs. used      2020-07-21  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51023  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 23:02:51  

Additional Information
 Earth MOID = 1.79734 au 
 Jupiter MOID = 1.40468 au 
 T_jup = 3.174 
[ show covariance matrix ]

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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