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10009 Hirosetanso (1977 EA6)
Classification: Main-belt Asteroid          SPK-ID: 2010009
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1046626150357719 2.3841e-08  
a 2.39787593512178 7.4798e-09 au
q 2.146907969220588 5.8968e-08 au
i 4.114738306800429 7.1854e-07 deg
node 307.27500552182 2.1046e-05 deg
peri 113.0458498171373 2.2502e-05 deg
M 25.99118989763311 9.6325e-06 deg
tp 2459102.582086161935
(2020-Sep-10.08208616)
3.6158e-05 TDB
period 1356.24606339833
3.71
6.3459e-06
1.737e-08
d
yr
n .2654385584706894 1.242e-09 deg/d
Q 2.648843901022973 8.2627e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1817  
   data-arc span      16063 days (43.98 yr)  
   first obs. used      1977-03-12  
   last obs. used      2021-03-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48927  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Mar-16 21:46:06  

Additional Information
 Earth MOID = 1.16294 au 
 Jupiter MOID = 2.6128 au 
 T_jup = 3.517 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.15   n/a E2021B10  
diameter diameter 4.300 km 0.144 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.182   0.026 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

10009 Hirosetanso           Discovered 1977 Mar. 12 by H. Kosai and K. Hurukawa at the Kiso Station of the Tokyo Astronomical Observatory.
Hirose Tanso (1782-1856) was a Confucian scholar in the Edo period, born at Hita, Oita prefecture.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20030106/MPCPages.arcLast Updated: 2003-10-02

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Alternate Designations
 1977 EA6 = 1979 VC2 = 1990 VG8 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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