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

[ show orbit diagram ]
Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08283542260748009 4.8904e-08  
a 2.678680823639233 1.7413e-08 au
q 2.456791165582524 1.3049e-07 au
i 13.89338117148658 5.9427e-06 deg
node 153.2117616287726 2.2442e-05 deg
peri 323.7004730760215 4.4041e-05 deg
M 106.9208883621091 3.8525e-05 deg
tp 2457124.902089924283
(2015-Apr-12.40208992)
0.00017047 JED
period 1601.326459684878
4.38
1.5615e-05
4.275e-08
d
yr
n .2248136211218566 2.1922e-09 deg/d
Q 2.900570481695941 1.8856e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1308  
   data-arc span      15153 days (41.49 yr)  
   first obs. used      1974-10-24  
   last obs. used      2016-04-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .49417  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Apr-25 12:54:07  

Additional Information
 Earth MOID = 1.48251 au 
 Jupiter MOID = 2.16226 au 
 T_jup = 3.331 
[ 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 11.9 mag n/a MPO267732  

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 | Physical Parameters | Discovery Circumstances ]
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