Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Near-Earth Object (NEO) Program
Search JPL
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
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 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03269606457350004 4.4169e-08  
a 2.305410674278659 1.2383e-08 au
q 2.230032818004008 1.0565e-07 au
i 3.192388511282986 4.8517e-06 deg
node 146.0380792104195 8.9602e-05 deg
peri 158.0939770076836 0.00012828 deg
M 323.8167210356447 9.2874e-05 deg
tp 2457529.006855305003
(2016-May-20.50685530)
0.00033006 JED
period 1278.559302361042
3.50
1.0301e-05
2.82e-08
d
yr
n .2815669162433127 2.2685e-09 deg/d
Q 2.380788530553311 1.2788e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1262  
   data-arc span      10841 days (29.68 yr)  
   first obs. used      1985-11-11  
   last obs. used      2015-07-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .47904  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Sep-02 14:26:51  

Additional Information
 Earth MOID = 1.21331 au 
 Jupiter MOID = 2.66743 au 
 T_jup = 3.586 
[ 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 ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2016-Feb-11 10:40 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin