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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08221000621964257 5.8748e-08  
a 2.678878597847649 2.0948e-08 AU
q 2.458647971656926 1.6152e-07 AU
i 13.89241116169747 6.8353e-06 deg
node 153.2210407476455 2.3952e-05 deg
peri 324.3990905861579 4.6572e-05 deg
M 331.4542368152614 4.0899e-05 deg
tp 2457127.489301254591
(2015-Apr-14.98930125)
0.00018228 JED
period 1601.503808316246
4.38
1.8785e-05
5.143e-08
d
yr
n .2247887255282202 2.6367e-09 deg/d
Q 2.899109224038371 2.267e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1120  
   data-arc span      14675 days (40.18 yr)  
   first obs. used      1974-10-24  
   last obs. used      2014-12-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50904  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jan-08 00:14:37  

Additional Information
 Earth MOID = 1.48539 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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