solar_pressure Class Reference

Generates a solar pressure model anywhere in the solar system but only in interplanetary space. More...

#include <solar_pressure.h>

Inherits dsim_model.

Public Member Functions
	solar_pressure (dsim_model_setup *setup)
	Constructor.
	~solar_pressure ()
	Destructor.
void	initialize_data ()
	Initialize outlets and output variables.
void	initialization_complete ()
	Finish initialization.
void	initialize_timestep ()
	Computation done prior to numerical integration. More...
void	rhs (double t, double jd)
	Computation done during numerical integration.
void	complete_timestep ()
	Computation done after numerical integration.

Protected Attributes
dsim_variable	forceSolar
	The solar pressure force.
dsim_variable	torqueSolar
	The solar pressure torque.
dsim_variable	observer
	The SPICE reference center.
dsim_variable	positionBody
	The SPICE position of solar system bodies.
dsim_variable	planetIndex
	The SPICE planet index corresponding to the position.
dsim_variable	parent_position
	The parent position.
dsim_variable	parent_quaternion
	The parent quaternion.
dsim_variable	parent_centerOfMass
	The center of mass.
dsim_variable	rho_dsim
	Solar pressure coefficients.
dsim_variable	area_dsim
	Area of each area.
dsim_variable	normals_dsim
	Normal for each surface.
dsim_variable	centroids_dsim
	Centroid of each surface.

Detailed Description

Generates a solar pressure model anywhere in the solar system but only in interplanetary space.

The inputs to this model are a file with vertices and faces. Each face is defined on one row by the three vertices (9 elements), coefficient of drag, optical properties (4 elements) in the order: [absorbed specular diffuse transmitted]. The optical coefficients must sum to one. The outward normals are computed using the right-hand-rule based on the face array.

This is a single-sided model. If the cosine of the angle to the light source is negative, the face is assumed facing away from the sun and the force on that face is zero. The position is assumed to be relative to the sun.

Member Function Documentation

initialize_timestep()

void solar_pressure::initialize_timestep

(

)

Computation done prior to numerical integration.

Compute the solar force and torque.

References area_dsim, centroids_dsim, forceSolar, normals_dsim, rho_dsim, and torqueSolar.

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The documentation for this class was generated from the following files:

• solar_pressure.h
• solar_pressure.cc