Package gaiasky.util.gaia

Class EquatorialAnglesRates

java.lang.Object

gaiasky.util.gaia.AbstractAttitudeAnglesRates

gaiasky.util.gaia.EquatorialAnglesRates

public class EquatorialAnglesRates
extends AbstractAttitudeAnglesRates

A compound object for holding equatorial angles and their rates as per Fig. 4 in GAIA-C3-TN-LU-085.

Field Summary

Fields inherited from class gaiasky.util.gaia.AbstractAttitudeAnglesRates

anglesRates

Constructor Summary

Constructors

Constructor	Description
EquatorialAnglesRates()

Method Summary

Modifier and Type	Method	Description
double	getAlphaZ()	Get the right ascension of the SRS z axis - this is the first equatorial attitude angle
double	getAlphaZDot()	Get the time derivative of the right ascension of the SRS z axis
double	getDeltaZ()	Get the declination of the SRS z axis - this is the second equatorial attitude angle
double	getDeltaZDot()	Get the time derivative of the declination of the SRS z axis
double	getPsi()	Get the equatorial spin phase angle, psi (from the ascending node on the equator to the SRS x axis) - this is the third equatorial attitude angle
double	getPsiDot()	Get time derivative psiDot of the the equatorial spin phase angle

Methods inherited from class gaiasky.util.gaia.AbstractAttitudeAnglesRates

setFirstAngle, setFirstPair, setFirstRate, setSecondAngle, setSecondPair, setSecondRate, setThirdAngle, setThirdPair, setThirdRate

Methods inherited from class java.lang.Object

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

Constructor Details

EquatorialAnglesRates

public EquatorialAnglesRates()

Method Details

getAlphaZ

public double getAlphaZ()

Get the right ascension of the SRS z axis - this is the first equatorial attitude angle

Returns:

right ascension of the z axis [rad]

getAlphaZDot

public double getAlphaZDot()

Get the time derivative of the right ascension of the SRS z axis

Returns:

time derivative of the right ascension of the z axis [rad/day]

getDeltaZ

public double getDeltaZ()

Get the declination of the SRS z axis - this is the second equatorial attitude angle

Returns:

declination of the z axis [rad]

getDeltaZDot

public double getDeltaZDot()

Get the time derivative of the declination of the SRS z axis

Returns:

time derivative of the declination of the z axis [rad/day]

getPsi

public double getPsi()

Get the equatorial spin phase angle, psi (from the ascending node on the equator to the SRS x axis) - this is the third equatorial attitude angle

Returns:

equatorial spin phase [rad]

getPsiDot

public double getPsiDot()

Get time derivative psiDot of the the equatorial spin phase angle

Returns:

time derivative of the equatorial spin phase [rad/day]