Package org.orekit.estimation.measurements

Class ObservableSatellite

java.lang.Object

org.orekit.estimation.measurements.ObservableSatellite

All Implemented Interfaces:

ParameterDriversProvider

public class ObservableSatellite
extends Object

Class modeling a satellite that can be observed.

Since:

9.3

Author:

Luc Maisonobe

Field Summary

Fields

Modifier and Type	Field	Description
static String	ACCELERATION_SUFFIX	Suffix for ground clock drift parameters name.
static String	DRIFT_SUFFIX	Suffix for ground clock drift parameters name.
static String	OFFSET_SUFFIX	Suffix for ground station position and clock offset parameters names.

Constructor Summary

Constructors

Constructor	Description
ObservableSatellite(int propagatorIndex)	Simple constructor.
ObservableSatellite(int propagatorIndex, String name)	Simple constructor.

Method Summary

Modifier and Type	Method	Description
protected void	addParameterDriver(ParameterDriver parameterDriver)	Add a single parameter.
protected static QuadraticClockModel	createEmptyQuadraticClock(String name)	Creates an quadratic clock with zero displacement.
boolean	equals(Object other)
static FieldPVCoordinatesProvider<Gradient>	extractFieldPVCoordinatesProvider(SpacecraftState templateState, TimeStampedFieldPVCoordinates<Gradient> pvCoordinates)	Create PV provider from position-velocity-acceleration vector and template state.
static PVCoordinatesProvider	extractPVCoordinatesProvider(SpacecraftState templateState, TimeStampedPVCoordinates pvCoordinates)	Create PV provider from position-velocity-acceleration vector and template state.
ParameterDriver	getClockAccelerationDriver()	Get the clock acceleration driver.
ParameterDriver	getClockDriftDriver()	Get the clock drift driver.
ParameterDriver	getClockOffsetDriver()	Get the clock offset driver.
String	getName()	Get the MeasurementObject name.
List<ParameterDriver>	getParametersDrivers()	Get the drivers for parameters.
int	getPropagatorIndex()	Get the index of the propagator related to this satellite.
QuadraticClockModel	getQuadraticClockModel()	Get a quadratic clock model valid at some date.
QuadraticFieldClockModel<Gradient>	getQuadraticFieldClock(int freeParameters, AbsoluteDate date, Map<String,Integer> indices)	Get emitting satellite clock provider.
int	hashCode()

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.orekit.utils.ParameterDriversProvider

getNbParametersDriversValue, getParameterDriver, getParameters, getParameters, getParameters, getParameters, getParametersAllValues, getParametersAllValues, isSupported

Field Detail

OFFSET_SUFFIX

public static final String OFFSET_SUFFIX

Suffix for ground station position and clock offset parameters names.

See Also:

Constant Field Values

DRIFT_SUFFIX

public static final String DRIFT_SUFFIX

Suffix for ground clock drift parameters name.

See Also:

Constant Field Values

ACCELERATION_SUFFIX

public static final String ACCELERATION_SUFFIX

Suffix for ground clock drift parameters name.

Since:

12.1

See Also:

Constant Field Values

Constructor Detail

ObservableSatellite

public ObservableSatellite(int propagatorIndex)

Simple constructor.

This constructor builds a default name based on the propagator index.

Parameters:

propagatorIndex - index of the propagator related to this satellite

ObservableSatellite

public ObservableSatellite(int propagatorIndex,
                           String name)

Simple constructor.

Parameters:

propagatorIndex - index of the propagator related to this satellite

name - satellite name (if null, a default name built from index will be used)

Since:

13.0

Method Detail

getPropagatorIndex

public int getPropagatorIndex()

Get the index of the propagator related to this satellite.

Returns:

index of the propagator related to this satellite

equals

public boolean equals(Object other)

Overrides:

equals in class Object

Since:

12.0

hashCode

public int hashCode()

Overrides:

hashCode in class Object

Since:

12.0

getName

public final String getName()

Get the MeasurementObject name.

Returns:

name for the object

Since:

12.1

getClockOffsetDriver

public final ParameterDriver getClockOffsetDriver()

Get the clock offset driver.

Returns:

clock offset driver

getClockDriftDriver

public final ParameterDriver getClockDriftDriver()

Get the clock drift driver.

Returns:

clock drift driver

getClockAccelerationDriver

public final ParameterDriver getClockAccelerationDriver()

Get the clock acceleration driver.

Returns:

clock acceleration driver

createEmptyQuadraticClock

protected static QuadraticClockModel createEmptyQuadraticClock(String name)

Creates an quadratic clock with zero displacement.

Parameters:

name - name of object that is holding the clock

Returns:

new quadratic clock model

getQuadraticClockModel

public final QuadraticClockModel getQuadraticClockModel()

Get a quadratic clock model valid at some date.

Returns:

quadratic clock model

Since:

12.1

getQuadraticFieldClock

public QuadraticFieldClockModel<Gradient> getQuadraticFieldClock(int freeParameters,
                                                                 AbsoluteDate date,
                                                                 Map<String,Integer> indices)

Get emitting satellite clock provider.

Parameters:

freeParameters - total number of free parameters in the gradient

date - time of computations

indices - indices of the differentiation parameters in derivatives computations, must be span name and not driver name

Returns:

emitting satellite clock provider

getParametersDrivers

public List<ParameterDriver> getParametersDrivers()

Get the drivers for parameters.

Specified by:

getParametersDrivers in interface ParameterDriversProvider

Returns:

drivers for parameters

addParameterDriver

protected final void addParameterDriver(ParameterDriver parameterDriver)

Add a single parameter.

Parameters:

parameterDriver - parameter being added to the MeasurementObject

extractPVCoordinatesProvider

public static PVCoordinatesProvider extractPVCoordinatesProvider(SpacecraftState templateState,
                                                                 TimeStampedPVCoordinates pvCoordinates)

Create PV provider from position-velocity-acceleration vector and template state.

Parameters:

templateState - template state

pvCoordinates - position-velocity-acceleration

Returns:

position-velocity-acceleration provider

Since:

14.0

extractFieldPVCoordinatesProvider

public static FieldPVCoordinatesProvider<Gradient> extractFieldPVCoordinatesProvider(SpacecraftState templateState,
                                                                                     TimeStampedFieldPVCoordinates<Gradient> pvCoordinates)

Create PV provider from position-velocity-acceleration vector and template state.

Parameters:

templateState - template state

pvCoordinates - position-velocity-acceleration

Returns:

position-velocity-acceleration provider

Since:

14.0