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15740 Hyakumangoku (1991 EG1)
Classification: Main-belt Asteroid          SPK-ID: 2015740
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1292930845214762 2.6743e-08  
a 2.579217772270067 1.1411e-08 au
q 2.24574275084066 6.9897e-08 au
i 14.93839601424209 4.2754e-06 deg
node 176.9687593017964 1.5279e-05 deg
peri 314.4672099085507 2.5496e-05 deg
M 325.9196090603543 2.0297e-05 deg
tp 2458743.729512275107
(2019-Sep-17.22951228)
8.5329e-05 TDB
period 1512.9704500853
4.14
1.0041e-05
2.749e-08
d
yr
n .2379425189564696 1.5791e-09 deg/d
Q 2.912692793699474 1.2887e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1973  
   data-arc span      10500 days (28.75 yr)  
   first obs. used      1991-03-09  
   last obs. used      2019-12-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47271  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 00:03:04  

Additional Information
 Earth MOID = 1.28193 au 
 Jupiter MOID = 2.15722 au 
 T_jup = 3.367 
[ 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 13.5   n/a MPO502290  

15740 Hyakumangoku           Discovered 1991 Mar. 15 by K. Endate and K. Watanabe at Kitami.
One million "koku", or five million bushels of rice, signify the extreme wealth of the Japanese province of Kaga in the Edo Era. This name was selected from candidates proposed by children attending the Fureai Space Festival 2006, held in Kanazawa city to celebrate Space Day in Japan.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20070402/MPCPages.arcLast Updated: 2007-07-05

[ show close-approach data ]
Alternate Designations
 1991 EG1 = 1997 NO11 = 1999 CN72 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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