Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Near-Earth Object (NEO) Program
Search JPL
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
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 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08221000264682723 5.9899e-08  
a 2.678878595283047 2.2324e-08 AU
q 2.458647978874299 1.6334e-07 AU
i 13.89241131814071 7.1864e-06 deg
node 153.2210410616706 2.4154e-05 deg
peri 324.3990853723459 4.9083e-05 deg
M 331.4542428137179 4.4839e-05 deg
tp 2457127.489274387369
(2015-Apr-14.98927439)
0.00020001 JED
period 1601.503806016467
4.38
2.0019e-05
5.481e-08
d
yr
n .2247887258510195 2.8099e-09 deg/d
Q 2.899109211691796 2.4159e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1083  
   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      .51569  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-09 18:17:44  

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 ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2014-Aug-22 23:36 UT
(server date/time)  
NASA Home Page
Site Manager:   Donald K. Yeomans
Webmaster  Alan B. Chamberlin