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11514 Tsunenaga (1991 CO1)
Classification: Main-belt Asteroid          SPK-ID: 2011514
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 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0327689494749023 3.4812e-08  
a 3.016503081965057 1.7446e-08 au
q 2.917655444881257 1.0389e-07 au
i 9.839698860883692 3.757e-06 deg
node 179.6029775924881 2.1588e-05 deg
peri 352.2575894798727 6.0951e-05 deg
M 183.4221638381306 5.8015e-05 deg
tp 2459939.115618788175
(2022-Dec-25.61561879)
0.00031094 TDB
period 1913.612886579873
5.24
1.6601e-05
4.545e-08
d
yr
n .1881258234226329 1.632e-09 deg/d
Q 3.115350719048858 1.8017e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2239  
   data-arc span      14366 days (39.33 yr)  
   first obs. used      1981-04-05  
   last obs. used      2020-08-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46397  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 00:25:28  

Additional Information
 Earth MOID = 1.92226 au 
 Jupiter MOID = 1.84421 au 
 T_jup = 3.225 
[ 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 12.4   n/a MPO502257  

11514 Tsunenaga           Discovered 1991 Feb. 13 by M. Koishikawa at the Sendai Astronomical Observatory Ayashi station.
In 1613 Hasekura Tsunenaga (1571-1622) led the first Japanese mission across the Pacific to the Americas (in Mexico), and he continued across the Atlantic to Europe, where he met with king Philip III of Spain and pope Paul V. His portrait was designated a national treasure for the first time in Sendai in June 2001.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20010902/MPCPages.arcLast Updated: 2009-05-11

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Alternate Designations
 1991 CO1 = 1981 GM = 1989 WU5 = 1997 GY38 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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