Package org.orekit.time

Class GLONASSDate

java.lang.Object

org.orekit.time.GLONASSDate

All Implemented Interfaces:

TimeStamped

public class GLONASSDate
extends Object
implements TimeStamped

Container for date in GLONASS form.

Since:

10.0

Author:

Bryan Cazabonne

See Also:

• AbsoluteDate
• "GLONASS Interface Control Document v1.0, 2016"

Constructor Summary

Constructors

Constructor	Description
GLONASSDate(int na, int n4, double secInNa)	Build an instance corresponding to a GLONASS date.
GLONASSDate(int na, int n4, double secInNa, TimeScale glonass)	Build an instance corresponding to a GLONASS date.
GLONASSDate(AbsoluteDate date)	Build an instance from an absolute date.
GLONASSDate(AbsoluteDate date, TimeScale glonass)	Build an instance from an absolute date.

Method Summary

Modifier and Type	Method	Description
AbsoluteDate	getDate()	Get the date.
int	getDayNumber()	Get the number of the current day in a four year interval.
double	getGMST()	Get the Greenwich Mean Sidereal Time.
int	getIntervalNumber()	Get the number of the current four year interval.
double	getJD0()	Get the current Julian date JD0.
double	getSecInDay()	Get the number of seconds since Na start.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.orekit.time.TimeStamped

durationFrom

Constructor Details

GLONASSDate

@DefaultDataContext
public GLONASSDate(int na,
 int n4,
 double secInNa)

Build an instance corresponding to a GLONASS date.

This method uses the default data context.

Parameters:

na - the number of the current day in a four year interval

n4 - the number of the current four year interval

secInNa - the number of seconds since na start

See Also:

• GLONASSDate(int, int, double, TimeScale)

GLONASSDate

public GLONASSDate(int na,
 int n4,
 double secInNa,
 TimeScale glonass)

Build an instance corresponding to a GLONASS date.

Parameters:

na - the number of the current day in a four year interval

n4 - the number of the current four year interval

secInNa - the number of seconds since na start

glonass - time scale.

Since:

10.1

GLONASSDate

@DefaultDataContext
public GLONASSDate(AbsoluteDate date)

Build an instance from an absolute date.

This method uses the default data context.

Parameters:

date - absolute date to consider

See Also:

• GLONASSDate(AbsoluteDate, TimeScale)

GLONASSDate

public GLONASSDate(AbsoluteDate date,
 TimeScale glonass)

Build an instance from an absolute date.

Parameters:

date - absolute date to consider

glonass - time scale.

Since:

10.1

Method Details

getDate

public AbsoluteDate getDate()

Description copied from interface: TimeStamped

Get the date.

Specified by:

getDate in interface TimeStamped

Returns:

date attached to the object

getSecInDay

public double getSecInDay()

Get the number of seconds since N_a start.

Returns:

number of seconds since N_a start

getDayNumber

public int getDayNumber()

Get the number of the current day in a four year interval.

Returns:

the number of the current day in a four year interval

getIntervalNumber

public int getIntervalNumber()

Get the number of the current four year interval.

Returns:

the number of the current four year interval

getJD0

public double getJD0()

Get the current Julian date JD0.

Returns:

the current date JD0

getGMST

public double getGMST()

Get the Greenwich Mean Sidereal Time.

Returns:

the Greenwich Mean Sidereal Time (rad)