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7754 Gopalan (1989 TT11)
Classification: Main-belt Asteroid          SPK-ID: 2007754
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.

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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 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07265180844610292 5.3514e-08  
a 2.894316868114502 1.6707e-08 au
q 2.684039513429922 1.5328e-07 au
i 1.549151402739857 5.0098e-06 deg
node 202.2120261483496 0.00015902 deg
peri 175.7134056884416 0.00016225 deg
M 119.136974962614 3.1318e-05 deg
tp 2456805.301801213133
0.00015597 JED
period 1798.529395517318
n .2001635341058475 1.7331e-09 deg/d
Q 3.104594222799081 1.792e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1951  
   data-arc span      15075 days (41.27 yr)  
   first obs. used      1974-09-11  
   last obs. used      2015-12-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .45575  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Jan-04 13:04:49  

Additional Information
 Earth MOID = 1.68384 au 
 Jupiter MOID = 2.27361 au 
 T_jup = 3.285 
[ 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 12.6 mag n/a MPO265999  

7754 Gopalan           Discovered 1989 Oct. 2 by S. J. Bus at Cerro Tololo.
Gopalan Srinivasan (b. 1964) is a professor in the department of geology at the University of Toronto. His research focuses on understanding the formation and evolution of the solar system through chemical and isotopic studies of meteorites.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20060809/MPCPages.arcLast Updated: 2007-08-08

[ show close-approach data ]
Alternate Designations
 1989 TT11 = 1974 RH = 1979 SU5 = 1979 UV2 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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