fr.cnes.sirius.patrius.orbits.pvcoordinates

Class GalileoAlmanacParameters

java.lang.Object

fr.cnes.sirius.patrius.orbits.pvcoordinates.AlmanacParameter

fr.cnes.sirius.patrius.orbits.pvcoordinates.GalileoAlmanacParameters

public class GalileoAlmanacParameters
extends AlmanacParameter

This class is a simple container for galileo almanac parameters.

Since:

3.2

Version:

$Id: GalileoAlmanacParameters.java 17584 2017-05-10 13:26:39Z bignon $

Author:

galpint

Concurrency :

immutable

Field Summary

Fields

Modifier and Type	Field and Description
static int	ROLL_OVER_WEEK_GALILEO Roll-over week number for Galileo parameters.

Constructor Summary

Constructors

Constructor and Description
GalileoAlmanacParameters(double refDuration, int week, double m0, double e, double squareRootA, double omega0, double i0, double w0, double rateRa) Creates an instance of Galileo Almanac parameters

Method Summary

Modifier and Type	Method and Description
AbsoluteDate	getDate(int weekNumber, double milliInWeek) Returns GNSS date given a week number and second in the week.
int	getRolloverWeeks() Returns almanach unambiguous week number.

Methods inherited from class fr.cnes.sirius.patrius.orbits.pvcoordinates.AlmanacParameter

getEccentricity, getI, getMeanAnomalyInit, getOmegaInit, getOmegaRate, getSqrtA, gettRef, getW, getWeekRef

Methods inherited from class java.lang.Object

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

Field Detail

ROLL_OVER_WEEK_GALILEO

public static final int ROLL_OVER_WEEK_GALILEO

Roll-over week number for Galileo parameters.

See Also:

Constant Field Values

Constructor Detail

GalileoAlmanacParameters

public GalileoAlmanacParameters(double refDuration,
                                int week,
                                double m0,
                                double e,
                                double squareRootA,
                                double omega0,
                                double i0,
                                double w0,
                                double rateRa)

Creates an instance of Galileo Almanac parameters

Parameters:

refDuration - time applicability of Galiléo almanac

week - week of the Galileo almanac

m0 - Initial Mean anomaly

e - Eccentricity

squareRootA - Semi major axis square root

omega0 - Initial Right ascencion

i0 - Orbital inclination

w0 - Argument of perigee

rateRa - Rate of right ascension

Method Detail

getRolloverWeeks

public int getRolloverWeeks()

Returns almanach unambiguous week number. Example: GPS week is coded over 10 Bytes => 1024 possibles weeks. Hence 1024 is returned.

Specified by:

getRolloverWeeks in class AlmanacParameter

Returns:

the roll-over week number

getDate

public AbsoluteDate getDate(int weekNumber,
                            double milliInWeek)
                     throws PatriusException

Returns GNSS date given a week number and second in the week.

Specified by:

getDate in class AlmanacParameter

Parameters:

weekNumber - week number taking roll-over into account

milliInWeek - millisecond in week

Returns:

GNSS date given a week number and milliseconds in the week

Throws:

PatriusException - if UTC data can't be load