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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 | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .178667431209928 3.4514e-08  
a 2.259925798871226 7.8036e-09 au
q 1.85615066166186 7.9232e-08 au
i 5.965320686771181 3.7906e-06 deg
node 123.4411480285936 3.4585e-05 deg
peri 243.3302754817893 3.6288e-05 deg
M 268.5589919321507 9.8593e-06 deg
tp 2459315.694188388916
(2021-Apr-11.19418839)
3.4382e-05 TDB
period 1240.908321306069
3.40
6.4274e-06
1.76e-08
d
yr
n .2901100700340991 1.5026e-09 deg/d
Q 2.663700936080593 9.1979e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1326  
   data-arc span      14004 days (38.34 yr)  
   first obs. used      1980-11-29  
   last obs. used      2019-04-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53621  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-12 22:55:10  

Additional Information
 Earth MOID = .86328 au 
 Jupiter MOID = 2.80618 au 
 T_jup = 3.592 
[ 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 15.2   n/a MPO337420  

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

[ show close-approach data ]
Alternate Designations
 1990 TQ1 = 1980 WQ4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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