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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1370249164953138 3.6246e-08  
a 3.213525224363467 1.7358e-08 au
q 2.773192198839478 1.1408e-07 au
i 1.940002678367404 4.1971e-06 deg
node 134.8258538521431 0.00012005 deg
peri 350.693789048209 0.00012104 deg
M 43.48243451397504 1.5433e-05 deg
tp 2458346.354544946628
(2018-Aug-15.85454495)
8.9724e-05 TDB
period 2104.122385093428
5.76
1.7048e-05
4.667e-08
d
yr
n .1710927095070162 1.3862e-09 deg/d
Q 3.653858249887455 1.9736e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1677  
   data-arc span      12917 days (35.36 yr)  
   first obs. used      1983-12-29  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51388  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 01:58:46  

Additional Information
 Earth MOID = 1.78897 au 
 Jupiter MOID = 1.41142 au 
 T_jup = 3.175 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456210.5 (2012-Oct-10.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1383437782240632 3.6224e-08  
q 2.768410520778736 1.1417e-07 au
tp 2456238.025848468964
(2012-Nov-06.52584847)
8.654e-05 TDB
node 134.8424334524079 0.0001201 deg
peri 350.1591680957046 0.00012107 deg
i 1.939630493692544 4.1972e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1677  
   data-arc span      12917 days (35.36 yr)  
   first obs. used      1983-12-29  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51388  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 01:58:46  

Additional Information
 Jupiter MOID = 1.41142 au 
 T_jup = 3.175 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.312165555690187E-15 -4.101688590404552E-15 -1.575817858802707E-13 -2.530587364764608E-15 -3.290767710362733E-14 1.203568726823647E-17
q -4.101688590404552E-15 1.303373670943648E-14 5.81101331039048E-13 4.848671649085099E-15 1.182571804603982E-13 1.751090039707467E-16
tp -1.575817858802707E-13 5.81101331039048E-13 7.489162209986863E-9 1.828188572194964E-12 1.345296024247602E-9 -3.601839098226563E-13
node -2.530587364764608E-15 4.848671649085099E-15 1.828188572194964E-12 1.442493341917226E-8 -1.441638315478788E-8 -1.918232729621776E-11
peri -3.290767710362733E-14 1.182571804603982E-13 1.345296024247602E-9 -1.441638315478788E-8 1.465878644465319E-8 1.912259876014492E-11
i 1.203568726823647E-17 1.751090039707467E-16 -3.601839098226563E-13 -1.918232729621776E-11 1.912259876014492E-11 1.761687787359419E-11

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

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