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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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .170762010276006 6.11e-08  
a 2.319124162616126 1.4659e-08 AU
q 1.923105858528137 1.4082e-07 AU
i 1.285364392479674 5.995e-06 deg
node 150.9640710390091 0.00028197 deg
peri 88.28069089372751 0.00028257 deg
M 165.2158270806219 2.4092e-05 deg
tp 2456408.483820295737
(2013-Apr-25.98382030)
8.4393e-05 JED
period 1289.984309974939
3.53
1.223e-05
3.348e-08
d
yr
n .2790731617557379 2.6459e-09 deg/d
Q 2.715142466704115 1.7162e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1014  
   data-arc span      11798 days (32.30 yr)  
   first obs. used      1982-10-20  
   last obs. used      2015-02-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50471  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Mar-09 14:08:03  

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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