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15025 Uwontario (1998 TX28)
Classification: Outer Main-belt Asteroid          SPK-ID: 2015025
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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 2457200.5 (2015-Jun-27.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1031267199935323 6.3091e-08  
a 3.200723029648599 4.1432e-08 AU
q 2.870642961993178 2.0996e-07 AU
i 7.312857374515415 8.6851e-06 deg
node 31.64266651463726 5.9613e-05 deg
peri 67.85751195223396 7.7043e-05 deg
M 274.3297133032939 5.1722e-05 deg
tp 2457698.235123327751
0.00030497 JED
period 2091.561162067173
n .1721202356063055 3.342e-09 deg/d
Q 3.53080309730402 4.5704e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      576  
   data-arc span      22071 days (60.43 yr)  
   first obs. used      1955-04-21  
   last obs. used      2015-09-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .55814  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Oct-05 13:53:32  

Additional Information
 Earth MOID = 1.89833 AU 
 T_jup = 3.173 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.7 mag n/a MPO302158  

15025 Uwontario           Discovered 1998 Oct. 15 by Spacewatch at Kitt Peak.
Founded in 1878, the University of Western Ontario is located in London. The Hume Cronyn Observatory was built on campus in 1940, and the university has a 1.2-m telescope at the Elginfield Observatory. The name was suggested by R. Jedicke and P. Jedicke.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20050523/MPCPages.arcLast Updated: 2005-07-21

[ show close-approach data ]
Alternate Designations
 1998 TX28 = 1981 UX8 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
FirstGov 2015-Oct-10 19:43 UT
(server date/time)  
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