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7754 Gopalan (1989 TT11)
Classification: Main-belt Asteroid          SPK-ID: 2007754
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07455037278886727 3.156e-08  
a 2.892843605867761 1.0233e-08 au
q 2.677181036630429 9.2694e-08 au
i 1.556112802748813 3.3545e-06 deg
node 202.1253378083316 0.00012149 deg
peri 177.570905586135 0.0001236 deg
M 77.6904969568813 2.2199e-05 deg
tp 2458612.661196365912
(2019-May-09.16119637)
0.00011098 TDB
period 1797.156341859452
4.92
9.536e-06
2.611e-08
d
yr
n .2003164619654187 1.0629e-09 deg/d
Q 3.108506175105094 1.0996e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3039  
   data-arc span      16851 days (46.14 yr)  
   first obs. used      1974-09-11  
   last obs. used      2020-10-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45364  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 03:25:51  

Additional Information
 Earth MOID = 1.67924 au 
 Jupiter MOID = 2.27394 au 
 T_jup = 3.285 
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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.7   n/a MPO452278  
diameter diameter 8.601 km 0.119 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.218   0.045 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

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

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Alternate Designations
 1989 TT11 = 1974 RH = 1979 SU5 = 1979 UV2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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