stella.parameter
Class BarycentricVelocity

java.lang.Object
  util.PropertyContainer
      stella.parameter.AbstractParameter
          stella.parameter.AbstractTargetParameter
              stella.parameter.AbstractTargetValue
                  stella.parameter.BarycentricVelocity

All Implemented Interfaces:

Cloneable, Parameter, TargetDependingValue, ParameterDepending, TargetDepending, TargetDependingParameter, Value, ExitCleaning, Initializable, PropertyBearing, Reloadable

public class BarycentricVelocity
extends AbstractTargetValue
implements ParameterDepending, Reloadable

Computes baricentric velocity correction, based on FORTRAN-code at bvc

Nested Class Summary

static class

BarycentricVelocity.Test Tests the class.

Nested classes/interfaces inherited from class util.PropertyContainer

PropertyContainer.URLResource

Field Summary

private static Matrix	CCAMPM Amplitudes CCAMPM(n,k) of the perturbations of the moon.
private static Matrix	CCAMPS Amplitudes CCAMPS(n,k) of the short-period perturbations.
private static double	CCFDI Constants used in the calculation of the lunar contribution .
private static double	CCKM Constants used in the calculation of the lunar contribution .
private static double	CCMLD Constants used in the calculation of the lunar contribution .
private static VectorG	CCPAMV CCPAMV = a*m*dl/dt (planets)
private static Matrix	CCSEC Constants of the secular perturbations in longitude.
private static double	CCSEC3 Constants of the secular perturbations in longitude.
private static Matrix	CCSEL Constants CCSEL(I,K) of slowly changing elements .
private static double	CCSGD Rate ccsgd in mean anomaly.
private static double	DC1MME Mass ratio Earth Moon.
private static Matrix	DCARGM Arguments of the perturbations of the motion of the moon.
private static Matrix	DCARGS Const.
private static Vector3D	DCEPS Constants dceps of slowly changing elements .
private static Matrix	DCFEL Constants DCFEL(I,K) of fast-changing elements.
private static double	DCSLD Sidereal rate dcsld in longitude
private static double	DCT0 Julian date of zero point (1900-01-01).
private TargetDependingParameter	de The declination of the target.
private static String	DEFDEC The name of the declination of the target to use.
private static String	DEFHJD The name of the julian date to use.
private static String	DEFJD The name of the julian date to use.
static String	DEFNAME The name of this parameter.
private static String	DEFRA The name of the ra target to use.
private TargetDependingParameter	dhjd The correction to it to get heliocentric jd, delivers ms.
private Value	jd The julian date.
static String	KEY_DEC The name of the declination of the target to use.
static String	KEY_HJD The name of the heliocentric julian date correction.
static String	KEY_JD The name of the julian date parameter.
static String	KEY_RA The name of the ra target to use.
private TargetDependingParameter	ra Right ascension of target.

Fields inherited from class stella.parameter.AbstractTargetParameter

KEY_INDEX

Fields inherited from class stella.parameter.AbstractParameter

KEY_FORMAT, KEY_NAME, KEY_PRESERVE, UNKNOWN

Fields inherited from class util.PropertyContainer

KEY_LISTSEPARATOR, KEY_LOCALECOUNTRY, KEY_LOCALELANGUAGE, KEY_MAPKEYVALUECHAR, KEY_MAPSEPARATOR, KEY_NOINITONCREATE, KEY_RESOURCEBUNDLES

Fields inherited from interface util.PropertyBearing

CONFIG, KEY_CLASS, KEY_URLRESOURCES, KEY_URLUSECONFIG, KEY_URLUSECURRENT, KEY_URLUSEHOME

Constructor Summary

BarycentricVelocity(Map info)
Constructs a barycentric velocity object.

Method Summary

private static Vector3D	barycentric(double hjd) Calculates the three components of the barycentric velocity.
private Double	calculate(double alpha, double delta, double hjd) Calculates the corrections in meter/sec.
static double	getBarycentricVelocity(double alpha, double delta, double jd0, double hjd) Calculates the barycentric velocity as a function of jd, hjd correction and position of the object.
Number	getForTarget(TargetDefinition star) Gets the declination of the target star.
Number	getValue() Returns the actual target's hour angle in degrees, wrapped into a Double.
void	registerParameter(Parameter what) Registers the required additional globals for the tau target.
void	registerTarget(TargetDefinition star) Registers a star to this parameter.
double	rescanned(String key, String old, String newval) As any parameter depending instance we fail if the parameter we depend on is now a different one.
Number	setValue(Number val) Sets the hour angle of the actual target.

Methods inherited from class stella.parameter.AbstractTargetValue

get, set

Methods inherited from class stella.parameter.AbstractTargetParameter

getAsStar, getConstant, getFormattedFor, getSetup

Methods inherited from class stella.parameter.AbstractParameter

createParameter, delivers, exit, getFormatted, getFormatted, getName, getPreserveFile, getString, getString, init, register, setName, toString

Methods inherited from class util.PropertyContainer

augment, augment, augment, clone, createFrom, createFrom, createFrom, defaultBoolean, defaultChar, defaultDouble, defaultFloat, defaultInt, defaultLong, defaultObject, defaultObject, defaultProperties, defaultProperty, getAsBoolean, getAsChar, getAsDouble, getAsEnums, getAsFloat, getAsInt, getAsList, getAsLong, getAsMap, getAsMap, getAsObject, getAsObject, getLocalClassLoader, getLocalized, getLocalized, getLocalizedString, getLocalizedString, getProperties, getPropertiesToKey, getPropertiesToKey, getProperty, getResource, getResourceAsStream, getResourceFromKey, getResources, has, isNew, keyCreate, keyCreate, parseObject, reload, reload, removeProperty, setObject, setProperties, setProperty, stringProperties

Methods inherited from class java.lang.Object

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

Methods inherited from interface util.Reloadable

reload

Methods inherited from interface stella.TargetDependingParameter

getFormattedFor

Methods inherited from interface stella.Parameter

getFormatted, getName, getString

Methods inherited from interface util.PropertyBearing

defaultBoolean, defaultChar, defaultDouble, defaultFloat, defaultInt, defaultLong, defaultObject, defaultObject, defaultProperties, defaultProperty, getAsBoolean, getAsChar, getAsDouble, getAsFloat, getAsInt, getAsList, getAsLong, getAsMap, getAsObject, getAsObject, getLocalized, getProperties, getProperty, getResource, getResourceAsStream, getResources, has, parseObject, removeProperty, setObject, setProperty, stringProperties

Methods inherited from interface util.Initializable

init

Field Detail

KEY_RA

public static final String KEY_RA

The name of the ra target to use.

See Also:

Constant Field Values

KEY_DEC

public static final String KEY_DEC

The name of the declination of the target to use.

See Also:

Constant Field Values

KEY_JD

public static final String KEY_JD

The name of the julian date parameter.

See Also:

Constant Field Values

KEY_HJD

public static final String KEY_HJD

The name of the heliocentric julian date correction.

See Also:

Constant Field Values

DEFNAME

public static final String DEFNAME

The name of this parameter.

See Also:

Constant Field Values

DEFRA

private static final String DEFRA

The name of the ra target to use.

See Also:

Constant Field Values

DEFDEC

private static final String DEFDEC

The name of the declination of the target to use.

See Also:

Constant Field Values

DEFJD

private static final String DEFJD

The name of the julian date to use.

See Also:

Constant Field Values

DEFHJD

private static final String DEFHJD

The name of the julian date to use.

See Also:

Constant Field Values

DCT0

private static final double DCT0

Julian date of zero point (1900-01-01).

See Also:

Constant Field Values

DCFEL

private static final Matrix DCFEL

Constants DCFEL(I,K) of fast-changing elements.

CCSEL

private static final Matrix CCSEL

Constants CCSEL(I,K) of slowly changing elements .

DCEPS

private static final Vector3D DCEPS

Constants dceps of slowly changing elements .

DCARGS

private static final Matrix DCARGS

Const. of the arguments of the short-period perturbations by planets

CCAMPS

private static final Matrix CCAMPS

Amplitudes CCAMPS(n,k) of the short-period perturbations.

CCSEC

private static final Matrix CCSEC

Constants of the secular perturbations in longitude.

DCARGM

private static final Matrix DCARGM

Arguments of the perturbations of the motion of the moon.

CCAMPM

private static final Matrix CCAMPM

Amplitudes CCAMPM(n,k) of the perturbations of the moon.

CCPAMV

private static final VectorG CCPAMV

CCPAMV = a*m*dl/dt (planets)

CCSEC3

private static final double CCSEC3

Constants of the secular perturbations in longitude.

See Also:

Constant Field Values

DCSLD

private static final double DCSLD

Sidereal rate dcsld in longitude

See Also:

Constant Field Values

CCSGD

private static final double CCSGD

Rate ccsgd in mean anomaly.

See Also:

Constant Field Values

CCKM

private static final double CCKM

Constants used in the calculation of the lunar contribution .

See Also:

Constant Field Values

CCMLD

private static final double CCMLD

Constants used in the calculation of the lunar contribution .

See Also:

Constant Field Values

CCFDI

private static final double CCFDI

Constants used in the calculation of the lunar contribution .

See Also:

Constant Field Values

DC1MME

private static final double DC1MME

Mass ratio Earth Moon.

See Also:

Constant Field Values

ra

private TargetDependingParameter ra

Right ascension of target. Should be precessed to current Eq.

de

private TargetDependingParameter de

The declination of the target. Should be precessed to current Eq.

jd

private Value jd

The julian date.

dhjd

private TargetDependingParameter dhjd

The correction to it to get heliocentric jd, delivers ms.

Constructor Detail

BarycentricVelocity

public BarycentricVelocity(Map info)

Constructs a barycentric velocity object. Note that this global can only function correctly after the ra and dec of the target have been registered.

Method Detail

rescanned

public double rescanned(String key,
                        String old,
                        String newval)

As any parameter depending instance we fail if the parameter we depend on is now a different one.

Specified by:

rescanned in interface Reloadable

Overrides:

rescanned in class AbstractParameter

setValue

public Number setValue(Number val)
                throws UnsupportedOperationException

Sets the hour angle of the actual target. This is a read-only variable, therefore this method throws an UnsupportedOperationException.

Specified by:

setValue in interface Value

Throws:

UnsupportedOperationException

registerTarget

public void registerTarget(TargetDefinition star)

Registers a star to this parameter. The target definition is directly passed to the ra reference of this parameter. Note that this will set the target in the additional parameter, too.

Specified by:

registerTarget in interface TargetDepending

getForTarget

public Number getForTarget(TargetDefinition star)

Gets the declination of the target star.

Specified by:

getForTarget in interface TargetDependingValue

Specified by:

getForTarget in interface TargetDependingParameter

Returns:

A Double holding the target star's declination.

getValue

public Number getValue()

Returns the actual target's hour angle in degrees, wrapped into a Double. Note that this method returns null if either the globals denoting the sidereal time or the ra target are missing.

Specified by:

getValue in interface Value

registerParameter

public void registerParameter(Parameter what)

Registers the required additional globals for the tau target. For this particular object, loacal sidereal time and target ra are required. Note that the argumental global is checked for being of instance types of SiderealTime or RaTarget, rather than querrying for the global name.

Specified by:

registerParameter in interface ParameterDepending

getBarycentricVelocity

public static final double getBarycentricVelocity(double alpha,
                                                  double delta,
                                                  double jd0,
                                                  double hjd)

Calculates the barycentric velocity as a function of jd, hjd correction and position of the object.

calculate

private Double calculate(double alpha,
                         double delta,
                         double hjd)

Calculates the corrections in meter/sec.

barycentric

private static Vector3D barycentric(double hjd)

Calculates the three components of the barycentric velocity. Heliocentric Julian date must be passed over.