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118230 Sado (1996 WY2)
Classification: Main-belt Asteroid          SPK-ID: 2118230
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .281201029141166 5.8678e-08  
a 2.711418558612368 1.4306e-08 au
q 1.948964869498113 1.6215e-07 au
i 11.13186146439684 5.6026e-06 deg
node 64.08794299484946 3.2974e-05 deg
peri 323.5429711335125 3.4328e-05 deg
M 111.4419111846768 1.2985e-05 deg
tp 2458495.676778395010
(2019-Jan-12.17677840)
5.6318e-05 TDB
period 1630.772102217727
4.46
1.2907e-05
3.534e-08
d
yr
n .2207543282782599 1.7472e-09 deg/d
Q 3.473872247726622 1.8329e-08 au
  Orbit Determination Parameters
   # obs. used (total)      860  
   data-arc span      8542 days (23.39 yr)  
   first obs. used      1996-11-30  
   last obs. used      2020-04-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4042  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 20:18:43  

Additional Information
 Earth MOID = .967001 au 
 Jupiter MOID = 2.0028 au 
 T_jup = 3.278 
[ 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 15.6   n/a MPO232007  

118230 Sado           Discovered 1996 Nov. 30 by N. Sato at Chichibu.
Sado, an island in the Sea of Japan, appears even in Japan's oldest history book Kojiki, dating to the eighth century. The island is currently famous as the place where Noh drama (one of the "World's Intangible Cultural Treasures") took root in the lives of the people on the island.
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
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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