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100133 Demosthenes (1993 RG14)
Classification: Outer Main-belt Asteroid          SPK-ID: 2100133
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2063829402829732 7.5868e-08  
a 3.947354645857805 9.0641e-08 AU
q 3.132687987706017 3.4179e-07 AU
i 2.56451134973907 9.2558e-06 deg
node 357.9058087459313 0.00016302 deg
peri 298.5748675392518 0.00016471 deg
M 300.9563651021057 2.6496e-05 deg
tp 2457470.316464632980
(2016-Mar-22.81646463)
0.00021531 JED
period 2864.558179054534
7.84
9.8666e-05
2.701e-07
d
yr
n .1256738308309801 4.3287e-09 deg/d
Q 4.762021304009593 1.0935e-07 AU
  Orbit Determination Parameters
   # obs. used (total)      371  
   data-arc span      7950 days (21.77 yr)  
   first obs. used      1993-09-15  
   last obs. used      2015-06-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .59417  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jul-06 14:23:36  

Additional Information
 Earth MOID = 2.11913 AU 
 T_jup = 3.021 
[ 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 14.3 mag n/a MPO337983  

100133 Demosthenes           Discovered 1993 Sept. 15 by E. W. Elst at the European Southern Observatory.
Demosthenes (384-322 BC), a famous orator of ancient Athens was considered by Cicero as the greatest among all orators. Known from his Philippiques, he strove to restore Athens' supremacy and freedom. He played a leading role in the uprising of the city against Alexander the Great, but he failed and took his own life.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC batch dated 2014-07-12Last Updated: 2014-08-13

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Alternate Designations
 1993 RG14 = 2001 TP50 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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