Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Near-Earth Object (NEO) Program
Search JPL
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
100133 Demosthenes (1993 RG14)
Classification: Outer Main-belt Asteroid          SPK-ID: 2100133
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2063829473833251 7.6984e-08  
a 3.947354680305833 1.1029e-07 AU
q 3.132687987016952 3.4179e-07 AU
i 2.564523806850298 1.0701e-05 deg
node 357.9057508324536 0.00016519 deg
peri 298.5749396003903 0.00016888 deg
M 300.9563453212098 4.4639e-05 deg
tp 2457470.316628181705
(2016-Mar-22.81662818)
0.00036689 JED
period 2864.55821655245
7.84
0.00012005
3.287e-07
d
yr
n .1256738291858725 5.2669e-09 deg/d
Q 4.762021373594714 1.3305e-07 AU
  Orbit Determination Parameters
   # obs. used (total)      319  
   data-arc span      7537 days (20.64 yr)  
   first obs. used      1993-09-15  
   last obs. used      2014-05-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .60022  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Oct-09 17:06:09  

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 14.2 mag n/a MPO257471  

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

[ show close-approach data ]
Alternate Designations
 1993 RG14 = 2001 TP50 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2014-Oct-22 23:05 UT
(server date/time)  
NASA Home Page
Site Manager:   Donald K. Yeomans
Webmaster  Alan B. Chamberlin