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5972 Harryatkinson (1991 PS12)
Classification: Main-belt Asteroid          SPK-ID: 2005972
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08221447761425182 3.1109e-08  
a 2.678726480212643 1.0637e-08 au
q 2.458496381970497 8.27e-08 au
i 13.8929278704393 3.9261e-06 deg
node 153.195612511037 1.4529e-05 deg
peri 323.2184610209075 2.9334e-05 deg
M 62.09619287223881 2.4962e-05 deg
tp 2458724.281058461028
(2019-Aug-28.78105846)
0.00011115 TDB
period 1601.367400391558
4.38
9.5383e-06
2.611e-08
d
yr
n .2248078735160806 1.339e-09 deg/d
Q 2.898956578454788 1.1512e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2743  
   data-arc span      16720 days (45.78 yr)  
   first obs. used      1974-10-24  
   last obs. used      2020-08-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .41422  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-24 23:34:40  

Additional Information
 Earth MOID = 1.48588 au 
 Jupiter MOID = 2.15921 au 
 T_jup = 3.331 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.0   n/a MPO384808  
diameter diameter 9.880 km 0.353 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.314   0.037 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

5972 Harryatkinson           Discovered 1991 Aug. 5 by H. E. Holt at Palomar.
New Zealand-born physicist Harry Atkinson (b. 1929), on the staff of the U.K. government's chief scientist (1969-1972), was head of astronomy and space for the Science Research Council (1972-1978) and chair of the European Space Agency Council (1984-1987). In 2000 he chaired the U.K. Task Force on Near-Earth Objects.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20060413/MPCPages.arcLast Updated: 2006-04-17

Alternate Designations
 1991 PS12 = 1974 UF = 1987 SJ29 = 1987 SU2 = 1990 KM3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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