KSAsteroid Class Reference

A subclass of KSPlanetBase that implements asteroids. More...

#include <ksasteroid.h>

Inheritance diagram for KSAsteroid:

[legend]

List of all members.

Public Member Functions
	KSAsteroid (KStarsData *kd, QString s, QString image_file, long double JD, double a, double e, dms i, dms w, dms N, dms M, double H)
virtual bool	loadData ()
virtual	~KSAsteroid ()
Protected Member Functions
virtual bool	findGeocentricPosition (const KSNumbers *num, const KSPlanetBase *Earth=NULL)
void	set_a (double newa)
void	set_e (double newe)
void	set_i (double newi)
void	set_M (double newM)
void	set_N (double newN)
void	set_P (double newP)
void	set_w (double neww)
void	setJD (long double jd)

---

Detailed Description

A subclass of KSPlanetBase that implements asteroids.

The orbital elements are stored as private member variables, and it provides methods to compute the ecliptic coordinates for any time from the orbital elements.

The orbital elements are:

• JD Epoch of element values
• a semi-major axis length (AU)
• e eccentricity of orbit
• i inclination angle (with respect to J2000.0 ecliptic plane)
• w argument of perihelion (w.r.t. J2000.0 ecliptic plane)
• N longitude of ascending node (J2000.0 ecliptic)
• M mean anomaly at epoch JD
• H absolute magnitude

Author:

Jason Harris

Version:

1.0

Definition at line 48 of file ksasteroid.h.

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Constructor & Destructor Documentation

KSAsteroid::KSAsteroid	(	KStarsData *	kd,
		QString	s,
		QString	image_file,
		long double	JD,
		double	a,
		double	e,
		dms	i,
		dms	w,
		dms	N,
		dms	M,
		double	H
	)

Constructor.

kd pointer to the KStarsData object s the name of the asteroid image_file the filename for an image of the asteroid JD the Julian Day for the orbital elements a the semi-major axis of the asteroid's orbit (AU) e the eccentricity of the asteroid's orbit i the inclination angle of the asteroid's orbit w the argument of the orbit's perihelion N the longitude of the orbit's ascending node M the mean anomaly for the Julian Day H absolute magnitude

Definition at line 26 of file ksasteroid.cpp.

virtual KSAsteroid::~KSAsteroid

(

)

[inline, virtual]

Destructor (empty).

Definition at line 68 of file ksasteroid.h.

---

Member Function Documentation

bool KSAsteroid::findGeocentricPosition	(	const KSNumbers *	num,
		const KSPlanetBase *	Earth = NULL
	)			[protected, virtual]

Calculate the geocentric RA, Dec coordinates of the Asteroid.

Note:

reimplemented from KSPlanetBase

Parameters:

	num	time-dependent values for the desired date
	Earth	planet Earth (needed to calculate geocentric coords)

Returns:

true if position was successfully calculated.

Implements KSPlanetBase.

Reimplemented in KSPluto.

Definition at line 36 of file ksasteroid.cpp.

bool KSAsteroid::loadData

(

)

[virtual]

This is inherited from KSPlanetBase.

We don't use it in this class, so it is empty.

Implements KSPlanetBase.

Definition at line 134 of file ksasteroid.cpp.

void KSAsteroid::set_a

(

double

newa

)

[inline, protected]

Definition at line 85 of file ksasteroid.h.

void KSAsteroid::set_e

(

double

newe

)

[inline, protected]

Definition at line 86 of file ksasteroid.h.

void KSAsteroid::set_i

(

double

newi

)

[inline, protected]

Definition at line 88 of file ksasteroid.h.

void KSAsteroid::set_M

(

double

newM

)

[inline, protected]

Definition at line 90 of file ksasteroid.h.

void KSAsteroid::set_N

(

double

newN

)

[inline, protected]

Definition at line 91 of file ksasteroid.h.

void KSAsteroid::set_P

(

double

newP

)

[inline, protected]

Definition at line 87 of file ksasteroid.h.

void KSAsteroid::set_w

(

double

neww

)

[inline, protected]

Definition at line 89 of file ksasteroid.h.

void KSAsteroid::setJD

(

long double

jd

)

[inline, protected]

Definition at line 92 of file ksasteroid.h.

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

• ksasteroid.h
• ksasteroid.cpp