agi.foundation.propagators

Class Sgp4Propagator.Sgp4EstimationOutput

java.lang.Object

agi.foundation.propagators.Sgp4Propagator.Sgp4EstimationOutput

Enclosing class:

Sgp4Propagator

public static class Sgp4Propagator.Sgp4EstimationOutput
extends Object

A class containing the estimated Sgp4Elements along with the associated information from the fit.

Constructor Summary

Constructors

Constructor and Description
Sgp4EstimationOutput() Initializes a new instance.
Sgp4EstimationOutput(int numPts) Initialize a new instance and initialize the residual data for the given number of observations.

Method Summary

Modifier and Type	Method and Description
boolean	getDragDisabled() Gets a value indicating whether the estimation of drag was disabled.
Sgp4Elements	getEstimatedElements() Gets the estimated set of elements representing the ephemeris at epoch.
Cartesian[]	getFinalPositionResiduals() Gets an array of the final position errors between the input position and the estimated position.
double	getFinalRootMeanSquareError() Gets the final value of the root mean square error of the estimated fit.
Cartesian[]	getInitialPositionResiduals() Gets an array of the initial position errors between the input position and the estimated position.
double	getInitialRootMeanSquareError() Gets the initial value of the root mean square error of the estimated fit.
int	getIterationsUsed() Gets a value indicating the number of iterations used for the solution.
double	getMeanMotionDot() Gets the first time derivative of mean motion, in units of revolutions per day squared.
double	getMeanMotionDotDot() Gets the second time derivative of mean motion, in units of revolutions per day cubed.
int	getNumberOfObservations() Gets the number of observations used for the fit (corresponding to the number of states in the input).

Methods inherited from class java.lang.Object

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

Constructor Detail

Sgp4EstimationOutput

public Sgp4EstimationOutput()

Initializes a new instance.

Sgp4EstimationOutput

public Sgp4EstimationOutput(int numPts)

Initialize a new instance and initialize the residual data for the given number of observations.

Parameters:

numPts - The number of observations in the input data.

Method Detail

getEstimatedElements

public final Sgp4Elements getEstimatedElements()

Gets the estimated set of elements representing the ephemeris at epoch.

getMeanMotionDot

public final double getMeanMotionDot()

Gets the first time derivative of mean motion, in units of revolutions per day squared.

getMeanMotionDotDot

public final double getMeanMotionDotDot()

Gets the second time derivative of mean motion, in units of revolutions per day cubed.

getDragDisabled

public final boolean getDragDisabled()

Gets a value indicating whether the estimation of drag was disabled.

getIterationsUsed

public final int getIterationsUsed()

Gets a value indicating the number of iterations used for the solution.

getInitialRootMeanSquareError

public final double getInitialRootMeanSquareError()

Gets the initial value of the root mean square error of the estimated fit.

getFinalRootMeanSquareError

public final double getFinalRootMeanSquareError()

Gets the final value of the root mean square error of the estimated fit.

getNumberOfObservations

public final int getNumberOfObservations()

Gets the number of observations used for the fit (corresponding to the number of states in the input).

getInitialPositionResiduals

public final Cartesian[] getInitialPositionResiduals()

Gets an array of the initial position errors between the input position and the estimated position. Note that if the data is unavailable, this value will be null.

getFinalPositionResiduals

public final Cartesian[] getFinalPositionResiduals()

Gets an array of the final position errors between the input position and the estimated position. Note that if the data is unavailable, this value will be null.