org.orekit.propagation.analytical.gnss

Class ClockCorrectionsProvider

java.lang.Object

org.orekit.propagation.analytical.gnss.ClockCorrectionsProvider

All Implemented Interfaces:

AdditionalStateProvider

public class ClockCorrectionsProvider
extends Object
implements AdditionalStateProvider

Provider for clock corrections as additional states.

The value of this additional state is a three elements array containing

• at index 0, the polynomial satellite clock model Δtₛₐₜ = a₀ + a₁ (t - toc) + a₂ (t - toc)²
• at index 1 the relativistic clock correction due to eccentricity
• at index 2 the estimated group delay differential TGD for L1-L2 correction

Since Orekit 10.3 the relativistic clock correction can be used as an EstimationModifier in orbit determination applications to take into consideration this effect in measurement modeling.

Since:

9.3

Author:

Luc Maisonobe

Field Summary

Fields

Modifier and Type	Field and Description
static String	CLOCK_CORRECTIONS Name of the additional state for satellite clock corrections.

Constructor Summary

Constructors

Constructor and Description
ClockCorrectionsProvider(GNSSClockElements gnssClk) Simple constructor.

Method Summary

Modifier and Type	Method and Description
double[]	getAdditionalState(SpacecraftState state) Get the additional state.
String	getName() Get the name of the additional state.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.orekit.propagation.AdditionalStateProvider

init, yields

Field Detail

CLOCK_CORRECTIONS

public static final String CLOCK_CORRECTIONS

Name of the additional state for satellite clock corrections.

Since:

9.3

See Also:

Constant Field Values

Constructor Detail

ClockCorrectionsProvider

public ClockCorrectionsProvider(GNSSClockElements gnssClk)

Simple constructor.

Parameters:

gnssClk - GNSS clock elements

Method Detail

getName

public String getName()

Get the name of the additional state.

Specified by:

getName in interface AdditionalStateProvider

Returns:

name of the additional state (names containing "orekit" with any case are reserved for the library internal use)

getAdditionalState

public double[] getAdditionalState(SpacecraftState state)

Get the additional state.

Specified by:

getAdditionalState in interface AdditionalStateProvider

Parameters:

state - spacecraft state to which additional state should correspond

Returns:

additional state corresponding to spacecraft state