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7264 Hirohatanaka (1995 FK)
Classification: Main-belt Asteroid          SPK-ID: 2007264
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1703708013697532 5.2336e-08  
a 2.319942008400757 1.1644e-08 au
q 1.924691629298165 1.2452e-07 au
i 1.285940662402088 5.6382e-06 deg
node 150.9595571507594 0.00021026 deg
peri 88.09412890950549 0.00021116 deg
M 332.7907350877194 2.3949e-05 deg
tp 2457698.050259393611
(2016-Nov-05.55025939)
8.616e-05 JED
period 1290.66674512952
3.53
9.7166e-06
2.66e-08
d
yr
n .278925602878126 2.0999e-09 deg/d
Q 2.715192387503349 1.3627e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1264  
   data-arc span      12216 days (33.45 yr)  
   first obs. used      1982-10-20  
   last obs. used      2016-03-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .49774  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Apr-25 12:58:37  

Additional Information
 Earth MOID = .912804 au 
 Jupiter MOID = 2.28805 au 
 T_jup = 3.558 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.6 mag n/a MPO358702  

7264 Hirohatanaka           Discovered 1995 Mar. 26 by Y. Shimizu and T. Urata at Nachi-Katsuura.
Hiroshi Hatanaka (b.1947) is an amateur astronomer who started his career as a planetarium operator at Nihondaira, Shizuoka, Japan. There he worked on orbit computations with the second discoverer.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC batch dated 2013-04-25Last Updated: 2013-04-29

[ show close-approach data ]
Alternate Designations
 1995 FK = 1982 UQ4 = 1992 OV7 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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