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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 ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 44 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07468729045645518 2.4283e-08  
a 2.892845588541889 9.2414e-09 au
q 2.676786789824786 6.993e-08 au
i 1.556180903310556 7.7542e-07 deg
node 202.1133797178003 2.7277e-05 deg
peri 177.5934163041418 2.5459e-05 deg
M 117.7271912881242 8.2476e-06 deg
tp 2458612.793372379666
(2019-May-09.29337238)
4.0045e-05 TDB
period 1797.158189440835
4.92
8.6117e-06
2.358e-08
d
yr
n .2003162560286414 9.5989e-10 deg/d
Q 3.108904387258993 9.9316e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3386  
   data-arc span      16996 days (46.53 yr)  
   first obs. used      1974-09-11  
   last obs. used      2021-03-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .44451  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 23:36:27  

Additional Information
 Earth MOID = 1.67746 au 
 Jupiter MOID = 2.27342 au 
 T_jup = 3.285 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.72   n/a MPCxxxxx  
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

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