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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .104479087950715 3.6214e-08  
a 2.397378377725053 9.0374e-09 au
q 2.146902471347575 8.8504e-08 au
i 4.114732764669953 4.2815e-06 deg
node 307.2749576130283 5.8102e-05 deg
peri 113.0502053796332 6.2244e-05 deg
M 332.8912825257613 2.3972e-05 deg
tp 2459102.596245968604
(2020-Sep-10.09624597)
9.0536e-05 TDB
period 1355.823955287639
3.71
7.6666e-06
2.099e-08
d
yr
n .265521197347207 1.5014e-09 deg/d
Q 2.647854284102531 9.9816e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1524  
   data-arc span      15565 days (42.61 yr)  
   first obs. used      1977-03-12  
   last obs. used      2019-10-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51127  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 03:21:05  

Additional Information
 Earth MOID = 1.16361 au 
 Jupiter MOID = 2.61356 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 14.1   n/a MPO395098  
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

[ show close-approach data ]
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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