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

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

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()