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 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2063829409659055 7.5897e-08  
a 3.947354649080423 9.1127e-08 AU
q 3.132687987567766 3.4179e-07 AU
i 2.564515408635546 9.3687e-06 deg
node 357.9057924180237 0.00016312 deg
peri 298.5748851698449 0.00016486 deg
M 300.9563632370144 2.7047e-05 deg
tp 2457470.316480049046
(2016-Mar-22.81648005)
0.00021994 JED
period 2864.558182562469
7.84
9.9195e-05
2.716e-07
d
yr
n .1256738306770801 4.3519e-09 deg/d
Q 4.762021310593081 1.0993e-07 AU
  Orbit Determination Parameters
   # obs. used (total)      341  
   data-arc span      7922 days (21.69 yr)  
   first obs. used      1993-09-15  
   last obs. used      2015-05-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .60236  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jun-04 19:20:42  

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

[ 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 2015-Jul-02 18:15 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin