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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 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2018056882577576 7.6459e-08  
a 2.646025062886625 3.056e-08 AU
q 2.112042153923513 2.1189e-07 AU
i 14.76307791819044 8.2097e-06 deg
node 132.247613371518 2.6033e-05 deg
peri 212.8695739980715 3.0992e-05 deg
M 356.6677206402649 1.6548e-05 deg
tp 2457015.052186748169
(2014-Dec-23.55218675)
7.2327e-05 JED
period 1572.133264888452
4.30
2.7236e-05
7.457e-08
d
yr
n .2289882213169398 3.967e-09 deg/d
Q 3.180007971849737 3.6727e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      496  
   data-arc span      12412 days (33.98 yr)  
   first obs. used      1980-10-14  
   last obs. used      2014-10-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .61845  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Nov-10 13:36:25  

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 14.5 mag n/a MPO309314  

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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