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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 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08221000196519947 5.9885e-08  
a 2.67887859494689 2.2314e-08 AU
q 2.458647980391775 1.6331e-07 AU
i 13.89241132119606 7.1834e-06 deg
node 153.2210410678304 2.4153e-05 deg
peri 324.3990846596701 4.9065e-05 deg
M 331.454243676735 4.481e-05 deg
tp 2457127.489270524229
(2015-Apr-14.98927052)
0.00019987 JED
period 1601.503805715022
4.38
2.001e-05
5.478e-08
d
yr
n .2247887258933307 2.8086e-09 deg/d
Q 2.899109209502005 2.4148e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1094  
   data-arc span      14582 days (39.92 yr)  
   first obs. used      1974-10-24  
   last obs. used      2014-09-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51346  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Oct-09 14:05:44  

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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