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

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1649324659258943 3.9762e-08  
a 2.939843790365907 1.9293e-08 au
q 2.45496810458393 1.2178e-07 au
i 10.83904837484476 5.4353e-06 deg
node 56.118914733166 2.3113e-05 deg
peri 278.4069143718838 2.8422e-05 deg
M 285.4428704051425 1.8028e-05 deg
tp 2459381.804111029382
(2021-Jun-16.30411103)
9.4062e-05 TDB
period 1841.131501661853
5.04
1.8124e-05
4.962e-08
d
yr
n .1955319322248599 1.9248e-09 deg/d
Q 3.424719476147884 2.2475e-08 au
  Orbit Determination Parameters
   # obs. used (total)      956  
   data-arc span      10036 days (27.48 yr)  
   first obs. used      1991-11-01  
   last obs. used      2019-04-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57134  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 09:45:50  

Additional Information
 Earth MOID = 1.47492 au 
 Jupiter MOID = 2.07194 au 
 T_jup = 3.226 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.1   n/a MPO436361  
diameter diameter 5.645 km 0.373 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.106   0.016 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

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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