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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 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2067112746296565 7.5802e-08  
a 3.949299157054149 8.9682e-08 au
q 3.132934494405658 3.4189e-07 au
i 2.564323981446772 8.9844e-06 deg
node 357.898569536016 0.00016296 deg
peri 298.5133213746601 0.00016455 deg
M 351.2814364767189 2.5673e-05 deg
tp 2457469.925802907891
(2016-Mar-22.42580291)
0.00020509 JED
period 2866.67510996526
7.85
9.7646e-05
2.673e-07
d
yr
n .1255810254704318 4.2776e-09 deg/d
Q 4.765663819702639 1.0822e-07 au
  Orbit Determination Parameters
   # obs. used (total)      374  
   data-arc span      7977 days (21.84 yr)  
   first obs. used      1993-09-15  
   last obs. used      2015-07-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .59518  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Sep-02 17:12:59  

Additional Information
 Earth MOID = 2.11639 au 
 Jupiter MOID = .495434 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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