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20430 Stout (1999 AC3)
Classification: Main-belt Asteroid          SPK-ID: 2020430
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2018700243061526 8.0666e-08  
a 2.646142327478016 3.3054e-08 AU
q 2.11196551151249 2.1969e-07 AU
i 14.76274420838711 8.2754e-06 deg
node 132.2480274372895 2.8334e-05 deg
peri 212.8836699953379 3.2791e-05 deg
M 310.8651659432833 1.7683e-05 deg
tp 2457015.087894925021
(2014-Dec-23.58789492)
7.8585e-05 JED
period 1572.237775013861
4.30
2.9459e-05
8.065e-08
d
yr
n .2289729999629517 4.2903e-09 deg/d
Q 3.180319143443542 3.9726e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      481  
   data-arc span      12255 days (33.55 yr)  
   first obs. used      1980-10-14  
   last obs. used      2014-05-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .62653  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-09 22:42:34  

Additional Information
 Earth MOID = 1.11589 AU 
 T_jup = 3.317 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.6 mag n/a MPO263530  

20430 Stout           Discovered 1999 Jan. 10 by W. R. Cooney, Jr., and S. Lazar at Baton Rouge.
A music professor at Louisiana State University who was fascinated by the mysteries of space being revealed in his time and was always researching new ideas, Earl Douglas Stout (1895?--1985) was a great-grandfather of the second discoverer.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20020624/MPCPages.arcLast Updated: 2003-10-02

Alternate Designations
 1999 AC3 = 1995 FR 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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