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Interface/Functional Spec

Overview

 
A celestial body model

Description

 
Model for orbital motion, physical properties, and orientation.
 
See Also:  SolarSystem, Barycenter, LibrationPoint, CoordinateSystem.

Fields

 
See the User Interface Spec spreadsheet for reference information for fields.  This section is usually empty other than the hyperlink.
 
 

GUI

  
 
CelestialBody properties tab.
  
 
Unique Earth Fields 

The CelestialBody Orbit tab.

  

The CelestialBody OrientationTab 

 

 

For Developer and GUI Tester:  If we add DE421 as Lunar RotatationDataSource, then we will need to make that field active in the panel above. 

 


 

Remarks

 
Overview of Celestial Body Orientation Model
 
GMAT asdf.OrientationEpoch = 21545;
GMAT asdf.SpinAxisRAConstant = 0;
GMAT asdf.SpinAxisRARate = -0.641;
GMAT asdf.SpinAxisDECConstant = 90;
GMAT asdf.SpinAxisDECRate = -0.5570000000000001;
GMAT asdf.RotationConstant = 190.147;
GMAT asdf.RotationRate = 360.9856235;
 
Physical Properties
 
GMAT asdf.Flattening = 0.0033527;
GMAT asdf.EquatorialRadius = 6378.1363;
GMAT asdf.Mu = 398600.4415; 
 
Orbit Ephemeridies
 
GMAT asdf.NAIFId = -123456789;
GMAT Earth.SourceFilename = '../data/planetary_ephem/de/leDE1941.405';
 
Unique fields Earth and Moon
 
GMAT Earth.RotationDataSource = 'FK5IAU1980';
GMAT Earth.NutationUpdateInterval = 60;
Luna.RotationDataSource
 
Use Custom Texture Map
 
GMAT Earth.TextureMapFileName = '../data/graphics/texture/ModifiedBlueMarble.jpg';
 
Obsolete
 
GMAT asdf.PosVelSource = 'SPICE';
GMAT asdf.CentralBody = 'Earth';
GMAT asdf.RotationDataSource = 'IAUSimplified';

Examples

 
Configure a CelestialBody to model the asteroid RQ236.

 

 

 


 
 
Configure a CelestialBody to model the Mars’ moon Phobos.

 

 

 


 
 

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