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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1707620064147211 6.1101e-08  
a 2.319124179576054 1.5849e-08 AU
q 1.923105881546754 1.4085e-07 AU
i 1.285365279857174 6.9244e-06 deg
node 150.9640876185088 0.00028223 deg
peri 88.28065748342614 0.00028302 deg
M 165.215833521117 2.4564e-05 deg
tp 2456408.483790723388
(2013-Apr-25.98379072)
8.6659e-05 JED
period 1289.984324125566
3.53
1.3224e-05
3.621e-08
d
yr
n .2790731586944135 2.8608e-09 deg/d
Q 2.715142477605355 1.8556e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      905  
   data-arc span      11697 days (32.02 yr)  
   first obs. used      1982-10-20  
   last obs. used      2014-10-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .52255  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Nov-10 13:03:56  

Additional Information
 Earth MOID = .912968 AU 
 T_jup = 3.559 
[ 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 14.5 mag n/a PDS3 (MPC 28116)  

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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