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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 2456800.5 (2014-May-23.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0820543428696007 6.2936e-08  
a 2.678521417393676 2.239e-08 AU
q 2.458737102627287 1.7078e-07 AU
i 13.89235523135614 7.4768e-06 deg
node 153.2228475551964 2.4905e-05 deg
peri 324.4224606991522 5.0479e-05 deg
M 286.455059761359 4.5456e-05 deg
tp 2457127.608184391533
(2015-Apr-15.10818439)
0.00020337 JED
period 1601.183521243525
4.38
2.0077e-05
5.497e-08
d
yr
n .2248336903445107 2.8191e-09 deg/d
Q 2.898305732160066 2.4227e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1076  
   data-arc span      14286 days (39.11 yr)  
   first obs. used      1974-10-24  
   last obs. used      2013-12-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .55954  
   data source      ORB  
   producer      Otto Matic  
   solution date      2013-Dec-19 22:34:39  

Additional Information
 Earth MOID = 1.4852 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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