edu.wisc.ssec.mcidasv.data.adde.sgp4

Class AstroConst

java.lang.Object

edu.wisc.ssec.mcidasv.data.adde.sgp4.AstroConst

public class AstroConst
extends Object

Astrodynamic Constants

Field Summary

Fields

Modifier and Type	Field and Description
static double	Arcs Arcseconds per radian
static double	AU Astronomical unit [m]; IAU 1976
static double	c_light Speed of light [m/s]; IAU 1976
static double[][]	CS EWG96 - spherical harmonics for Earth gravity
static double	Deg Degrees per radian
static double	f_Earth Earth Flattening; WGS-84
static double	GM_Earth Gravitational Constant times Earth Mass [m^3/s^2]; JGM3
static double	GM_Moon Gravitational Constant times moon mass [m^3/s^2]; DE200
static double	GM_Sun Gravitational Constant times sun mass [m^3/s^2]; IAU 1976
static double	JDminusMJD Difference in days between Julian to Modified Julian dates
static double	MJD_J2000 Modified Julian Date of J2000.0
static double	P_Sol Solar radiation pressure at 1 AU.
static double	R_Earth Radius Earth [m]; WGS-84 (semi-major axis, a) (Equatorial Radius)
static double	R_Earth_major Radius Earth [m]; WGS-84 (semi-major axis, a) (Equatorial Radius)
static double	R_Earth_mean Arithmetic mean radius of the Earth = (2a+b)/3 [m]; WGS-84
static double	R_Earth_minor Semi-minor axis of the Earth = polar radius = b = (1?
static double	Rad Radians per degree

Constructor Summary

Constructors

Constructor and Description
AstroConst()

Method Summary

Methods inherited from class java.lang.Object

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

Field Detail

MJD_J2000

public static final double MJD_J2000

Modified Julian Date of J2000.0

See Also:

Constant Field Values

GM_Earth

public static final double GM_Earth

Gravitational Constant times Earth Mass [m^3/s^2]; JGM3

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Constant Field Values

R_Earth

public static final double R_Earth

Radius Earth [m]; WGS-84 (semi-major axis, a) (Equatorial Radius)

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Constant Field Values

R_Earth_mean

public static final double R_Earth_mean

Arithmetic mean radius of the Earth = (2a+b)/3 [m]; WGS-84

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Constant Field Values

R_Earth_minor

public static final double R_Earth_minor

Semi-minor axis of the Earth = polar radius = b = (1?f)a [m]; WGS-84 (semi-major axis, a) (Equatorial Radius)

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Constant Field Values

R_Earth_major

public static final double R_Earth_major

Radius Earth [m]; WGS-84 (semi-major axis, a) (Equatorial Radius)

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Constant Field Values

f_Earth

public static final double f_Earth

Earth Flattening; WGS-84

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Constant Field Values

GM_Sun

public static final double GM_Sun

Gravitational Constant times sun mass [m^3/s^2]; IAU 1976

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Constant Field Values

GM_Moon

public static final double GM_Moon

Gravitational Constant times moon mass [m^3/s^2]; DE200

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Constant Field Values

Arcs

public static final double Arcs

Arcseconds per radian

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Constant Field Values

Deg

public static final double Deg

Degrees per radian

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Constant Field Values

Rad

public static final double Rad

Radians per degree

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Constant Field Values

AU

public static final double AU

Astronomical unit [m]; IAU 1976

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Constant Field Values

c_light

public static final double c_light

Speed of light [m/s]; IAU 1976

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Constant Field Values

P_Sol

public static final double P_Sol

Solar radiation pressure at 1 AU. [N/m^2] (~1367 W/m^2); IERS 96

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Constant Field Values

JDminusMJD

public static final double JDminusMJD

Difference in days between Julian to Modified Julian dates

See Also:

Constant Field Values

CS

public static final double[][] CS

EWG96 - spherical harmonics for Earth gravity

Constructor Detail

AstroConst

public AstroConst()