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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2018056937485177 7.7775e-08  
a 2.64602506558025 3.165e-08 AU
q 2.112042141544861 2.1419e-07 AU
i 14.76307790992214 8.2167e-06 deg
node 132.2476124571753 2.7146e-05 deg
peri 212.8695752883256 3.1846e-05 deg
M 356.6677191378451 1.7202e-05 deg
tp 2457015.052193331512
(2014-Dec-23.55219333)
7.5199e-05 JED
period 1572.133267289074
4.30
2.8207e-05
7.723e-08
d
yr
n .2289882209672785 4.1085e-09 deg/d
Q 3.18000798961564 3.8037e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      490  
   data-arc span      12358 days (33.83 yr)  
   first obs. used      1980-10-14  
   last obs. used      2014-08-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .62183  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Sep-12 14:13:17  

Additional Information
 Earth MOID = 1.11769 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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