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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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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03278911978597243 1.2532e-08  
a 3.016610664539615 1.4529e-08 au
q 2.917698656112384 4.445e-08 au
i 9.839564420080595 1.2764e-06 deg
node 179.6028194457933 5.4764e-06 deg
peri 351.9928029009279 3.8265e-05 deg
M 221.3288997083922 4.1102e-05 deg
tp 2459937.658335429018
(2022-Dec-24.15833543)
0.00022036 TDB
period 1913.715260038986
5.24
1.3826e-05
3.785e-08
d
yr
n .1881157597043283 1.3591e-09 deg/d
Q 3.115522672966846 1.5006e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2725  
   data-arc span      14579 days (39.92 yr)  
   first obs. used      1981-04-05  
   last obs. used      2021-03-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43879  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Mar-16 22:41:15  

Additional Information
 Earth MOID = 1.92192 au 
 Jupiter MOID = 1.84312 au 
 T_jup = 3.225 
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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 12.41   n/a E2021B10  

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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