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85200 Johnhault (1991 TG15)
Classification: Main-belt Asteroid          SPK-ID: 2085200
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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1765786895308326 8.5862e-08  
a 2.563120614992199 3.5556e-08 AU
q 2.110528135687415 2.0762e-07 AU
i 5.272714721304287 8.0474e-06 deg
node 38.00859152438321 0.00012027 deg
peri 24.32270521134898 0.00012447 deg
M 212.4501587473241 3.6767e-05 deg
tp 2457614.810923860324
0.00015911 JED
period 1498.828671804524
n .240187558973352 4.9979e-09 deg/d
Q 3.015713094296983 4.1835e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      216  
   data-arc span      8277 days (22.66 yr)  
   first obs. used      1991-10-06  
   last obs. used      2014-06-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .58519  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-16 15:51:57  

Additional Information
 Earth MOID = 1.12425 AU 
 T_jup = 3.406 
[ 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 16.0 mag n/a MPO253864  

85200 Johnhault           Discovered 1991 Oct. 6 by A. Lowe on plates taken at Palomar.
John A. Hault (b. 1946) was curator of Edmonton's Queen Elizabeth Planetarium when, in the mid-1970s, he recognized the need for a major science center. He played the major role in developing the project and served as the first director of the Edmonton Space Sciences Centre (now the Odyssium) when it opened in 1984.
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

Alternate Designations
 1991 TG15 = 1999 TU311 = 2003 QZ56 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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