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83464 Irishmccalla (2001 SM73)
Classification: Main-belt Asteroid          SPK-ID: 2083464
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .163970853105492 7.6943e-08  
a 2.939439024729652 4.0263e-08 AU
q 2.457456700193156 2.37e-07 AU
i 10.84045304736241 8.1878e-06 deg
node 56.12982106364318 3.854e-05 deg
peri 278.9123636645406 4.7689e-05 deg
M 214.7269053611076 3.1489e-05 deg
tp 2457543.310095674363
(2016-Jun-03.81009567)
0.000171 JED
period 1840.751276810615
5.04
3.7821e-05
1.035e-07
d
yr
n .1955723212229712 4.0183e-09 deg/d
Q 3.421421349266148 4.6865e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      563  
   data-arc span      8248 days (22.58 yr)  
   first obs. used      1991-11-01  
   last obs. used      2014-06-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .58825  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-16 15:49:40  

Additional Information
 Earth MOID = 1.47627 AU 
 T_jup = 3.227 
[ 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 14.0 mag n/a MPO253855  

83464 Irishmccalla           Discovered 2001 Sept. 19 by R. Tucker at the Goodricke-Pigott Observatory.
Nellie Elizabeth "Irish" McCalla (1929-2002) was an American film actress and artist. She produced over 1000 paintings and numerous limited-edition lithographs. She was a member of Woman Artists of the American West. Her art often featured themes from the Old West and the sweet innocence of youth.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20050919/MPCPages.arcLast Updated: 2005-09-26

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Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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