jat.forces
Class Sun

java.lang.Object
  jat.forces.GravitationalBody
      jat.forces.Sun

All Implemented Interfaces:

EarthForceModel, ForceModel

public class Sun
extends GravitationalBody

Simple class to obtain the gravitational effect of the Sun.

Author:

Richard C. Page III

Constructor Summary

Sun()
Default constructor.

Sun(double grav_mass, VectorN r, VectorN v)
Constructor.

Method Summary

VectorN	acceleration(EarthRef eRef, Spacecraft sc) Compute the acceleration.
VectorN	acceleration(Time t, BodyRef bRef, Spacecraft sc) Call the relevant methods to compute the acceleration.
static void	main(java.lang.String[] args)

Methods inherited from class jat.forces.GravitationalBody

accelPointMass, getPosition, getVelocity, updatePosition, updateVelocity

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

Sun

public Sun()

Default constructor.

Sun

public Sun(double grav_mass,
           VectorN r,
           VectorN v)

Constructor.

Parameters:

grav_mass - [m^3/s^2]

r - position [m]

v - velocity [m/s]

Method Detail

acceleration

public VectorN acceleration(EarthRef eRef,
                            Spacecraft sc)

Compute the acceleration.

Specified by:

acceleration in interface EarthForceModel

Overrides:

acceleration in class GravitationalBody

Parameters:

eRef - Earth Reference

sc - Spacecraft Parameters and state

Returns:

the acceleration [m/s^2]

acceleration

public VectorN acceleration(Time t,
                            BodyRef bRef,
                            Spacecraft sc)

Call the relevant methods to compute the acceleration.

Specified by:

acceleration in interface ForceModel

Overrides:

acceleration in class GravitationalBody

Parameters:

t - Time reference class

bRef - Body reference class

sc - Spacecraft parameters and state

Returns:

the acceleration [m/s^s]

main

public static void main(java.lang.String[] args)
                 throws java.io.IOException

Throws:

java.io.IOException