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5207 Hearnshaw (1988 HE)
Classification: Main-belt Asteroid          SPK-ID: 2005207
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1880770431938433 1.2095e-08  
a 2.551555283930084 8.6568e-09 au
q 2.071666310582887 3.3968e-08 au
i 12.7676022953751 1.3653e-06 deg
node 319.1932407364927 3.4388e-06 deg
peri 346.9986890066494 6.3345e-06 deg
M 341.8968426996752 8.2051e-06 deg
tp 2459471.361362122072
(2021-Sep-13.86136212)
3.4143e-05 TDB
period 1488.695585905471
4.08
7.5761e-06
2.074e-08
d
yr
n .2418224406711307 1.2307e-09 deg/d
Q 3.031444257277282 1.0285e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1756  
   data-arc span      13541 days (37.07 yr)  
   first obs. used      1984-05-26  
   last obs. used      2021-06-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .4895  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-07 23:44:12  

Additional Information
 Earth MOID = 1.05845 au 
 Jupiter MOID = 2.25503 au 
 T_jup = 3.381 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.54   n/a E2021B10  

5207 Hearnshaw           Discovered 1988 Apr. 15 by A. C. Gilmore and P. M. Kilmartin at Lake Tekapo.
John Bernard Hearnshaw (b. 1946), professor at Canterbury University, has guided the Mt. John Observatory through major developments over 30 years. He is the author of three books on the history of spectroscopy and photometry.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20051215/MPCPages.arcLast Updated: 2006-03-22

Alternate Designations
 1988 HE = 1989 SD14 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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