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19161 Sakawa (1990 TQ1)
Classification: Main-belt Asteroid          SPK-ID: 2019161
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1781515512699781 3.0107e-08  
a 2.259470295515784 7.4908e-09 au
q 1.856942157321211 7.0366e-08 au
i 5.965895430705983 3.4177e-06 deg
node 123.4384530655603 3.0765e-05 deg
peri 243.2642543680782 3.2304e-05 deg
M 23.47710581843515 9.7941e-06 deg
tp 2459315.599643046686
(2021-Apr-11.09964305)
3.3608e-05 TDB
period 1240.533169992521
3.40
6.1691e-06
1.689e-08
d
yr
n .2901978026127028 1.4431e-09 deg/d
Q 2.661998433710357 8.8253e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1498  
   data-arc span      14507 days (39.72 yr)  
   first obs. used      1980-11-29  
   last obs. used      2020-08-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52475  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 10:09:09  

Additional Information
 Earth MOID = .863223 au 
 Jupiter MOID = 2.80917 au 
 T_jup = 3.593 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.23   n/a E2021B10  

19161 Sakawa           Discovered 1990 Oct. 15 by T. Seki at Geisei.
Sakawa is a town in Kochi prefecture with a population of 20 \, 000, known for brewing a famous brand of sake. It has produced many noted politicians, scientists, and musicians, including Masamitsu Yamasaki, who discovered comet 27P/Crommelin independently in 1928.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC batch dated 2018-05-29Last Updated: 2018-09-17

Alternate Designations
 1990 TQ1 = 1980 WQ4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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