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9110 Choukai (1997 AM19)
Classification: Main-belt Asteroid          SPK-ID: 2009110
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03282874255317978 4.4109e-08  
a 2.305727914193398 1.2331e-08 au
q 2.230033766100663 1.0555e-07 au
i 3.192372832839294 4.8448e-06 deg
node 146.0383758874577 8.9195e-05 deg
peri 158.0411517519853 0.00012744 deg
M 20.17574761614323 9.2182e-05 deg
tp 2457528.829959694157
(2016-May-20.32995969)
0.00032734 JED
period 1278.8232188957
3.50
1.0258e-05
2.808e-08
d
yr
n .2815088080046514 2.2582e-09 deg/d
Q 2.381422062286133 1.2735e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1267  
   data-arc span      11116 days (30.43 yr)  
   first obs. used      1985-11-11  
   last obs. used      2016-04-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .48622  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Apr-25 13:04:27  

Additional Information
 Earth MOID = 1.21478 au 
 Jupiter MOID = 2.66773 au 
 T_jup = 3.585 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.9 mag n/a PDS3 (MPC 32199)  

9110 Choukai           Discovered 1997 Jan. 13 by T. Okuni at Nanyo.
The Choukai volcanic mountain range forms a part of the border between Akita and Yamagata prefectures in the northern part of mainland Japan. It was designated as a national park in 1963. Mt. Choukai has a height of 2230 meters.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20000523/MPCPages.arcLast Updated: 2013-03-29

Alternate Designations
 1997 AM19 = 1985 UX4 = 1985 VT4 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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