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15248 Hidekazu (1989 WH3)
Classification: Main-belt Asteroid          SPK-ID: 2015248
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

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Orbit Diagram
Note: Make sure you have Java enabled on your browser to see the applet. This applet is provided as a 3D orbit visualization tool. The applet was implemented using 2-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances. For accurate long-term ephemerides, please instead use our Horizons system.

Note: If the applet has stopped working because of a recent Java upgrade, here is a possible workaround.
Orbit Viewer

Additional Notes: the orbits shown in the applet are color coded. The planets are white lines, and the asteroid/comet is a blue line. The bright white line indicates the portion of the orbit that is above the ecliptic plane, and the darker portion is below the ecliptic plane. Likewise for the asteroid/comet orbit, the light blue indicates the portion above the ecliptic plane, and the dark blue the portion below the ecliptic plane.

Orbit Viewer applet originally written and kindly provided by Osamu Ajiki (AstroArts), and further modified by Ron Baalke (JPL).

Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .208262072617249 4.5819e-08  
a 2.564702999084469 1.4377e-08 au
q 2.030572636847463 1.1905e-07 au
i 1.203349207740316 4.5694e-06 deg
node 36.84809801030789 0.00026524 deg
peri 347.8947071454013 0.00026555 deg
M 208.1263343429401 1.8295e-05 deg
tp 2458233.398433701162
8.0163e-05 JED
period 1500.216875300178
n .2399653049683018 2.0177e-09 deg/d
Q 3.098833361321474 1.7371e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1378  
   data-arc span      9666 days (26.46 yr)  
   first obs. used      1989-10-30  
   last obs. used      2016-04-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .56165  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Apr-25 13:21:35  

Additional Information
 Earth MOID = 1.03309 au 
 Jupiter MOID = 2.3523 au 
 T_jup = 3.402 
[ 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 14.1 mag n/a MPO309272  

15248 Hidekazu           Discovered 1989 Nov. 29 by K. Endate and K. Watanabe at Kitami.
Hidekazu Yamato (b. 1956), became interested in astronomy through an event in which he participated at the age of 26. Star-field photography is his personal favorite activity.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20100527/MPCPages.arcLast Updated: 2010-12-06

Alternate Designations
 1989 WH3 = 1993 VJ3 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
FirstGov 2016-May-01 13:39 UT
(server date/time)  
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