org.orekit.frames.configuration.eop
Class EOPEntry

java.lang.Object
  org.orekit.frames.configuration.eop.EOPEntry

All Implemented Interfaces:

Serializable, TimeStamped

Direct Known Subclasses:

EOP1980Entry, EOP2000Entry

public class EOPEntry
extends Object
implements TimeStamped, Serializable

This class holds an Earth Orientation Parameters entry.

Author:

Luc Maisonobe

See Also:

Serialized Form

Nested Class Summary

static class

EOPEntry.DtType dt type.

Constructor Summary

EOPEntry(AbsoluteDate adate, double dt, double lod, double x, double y, double dx, double dy)
Constructor with an AbsoluteDate parameter.

EOPEntry(AbsoluteDate adate, double dt, double lod, double x, double y, double dx, double dy, EOPEntry.DtType type)
Constructor with an AbsoluteDate parameter.

EOPEntry(DateComponents datec, double dt, double lod, double x, double y, double dx, double dy)
Constructor with DateComponents parameter.

EOPEntry(DateComponents datec, double dt, double lod, double x, double y, double dx, double dy, EOPEntry.DtType type)
Constructor with DateComponents parameter.

EOPEntry(int mjd, double dt, double lod, double x, double y, double dx, double dy)
Simple constructor.

EOPEntry(int mjd, double dt, double lod, double x, double y, double dx, double dy, EOPEntry.DtType type)
Simple constructor.

Method Summary

AbsoluteDate	getDate() Get the date.
double	getDX() Get the dx correction of the X component of the celestial pole (IAU 2000) or celestial pole offset in longitude (IAU 1980).
double	getDY() Get the dy correction of the Y component of the celestial pole (IAU 2000) or celestial pole offset in obliquity (IAU 1980).
double	getLOD() Get the LoD (Length of Day) value.
double	getUT1MinusTAI() Get the UT1-TAI value.
double	getX() Get the X component of the pole motion.
double	getY() Get the Y component of the pole motion.

Methods inherited from class java.lang.Object

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

Constructor Detail

EOPEntry

public EOPEntry(int mjd,
                double dt,
                double lod,
                double x,
                double y,
                double dx,
                double dy)
         throws OrekitException

Simple constructor.

Parameters:

mjd - entry date (modified julian day, 00h00 UTC scale)

dt - UT1-UTC in seconds

lod - length of day

x - X component of pole motion

y - Y component of pole motion

dx - nutation correction for the X component (IAU 2000) or longitude offset (IAU 1980)

dy - nutation correction for the Y component (IAU 2000) or obliquity offset (IAU 1980)

Throws:

OrekitException - if UTC time scale cannot be retrieved

EOPEntry

public EOPEntry(DateComponents datec,
                double dt,
                double lod,
                double x,
                double y,
                double dx,
                double dy)
         throws OrekitException

Constructor with DateComponents parameter.

Parameters:

datec - a DateComponents instance

dt - UT1-UTC in seconds

lod - length of day

x - X component of pole motion

y - Y component of pole motion

dx - nutation correction for the X component (IAU 2000) or longitude offset (IAU 1980)

dy - nutation correction for the Y component (IAU 2000) or obliquity offset (IAU 1980)

Throws:

OrekitException - if UTC time scale cannot be retrieved

EOPEntry

public EOPEntry(AbsoluteDate adate,
                double dt,
                double lod,
                double x,
                double y,
                double dx,
                double dy)
         throws OrekitException

Constructor with an AbsoluteDate parameter.

Parameters:

adate - an AbsoluteDate instance

dt - UT1-UTC in seconds

lod - length of day

x - X component of pole motion

y - Y component of pole motion

dx - nutation correction for the X component (IAU 2000) or longitude offset (IAU 1980)

dy - nutation correction for the Y component (IAU 2000) or obliquity offset (IAU 1980)

Throws:

OrekitException - if UTC time scale cannot be retrieved

EOPEntry

public EOPEntry(int mjd,
                double dt,
                double lod,
                double x,
                double y,
                double dx,
                double dy,
                EOPEntry.DtType type)
         throws OrekitException

Simple constructor.

Parameters:

mjd - entry date (modified julian day, 00h00 UTC scale)

dt - UT1-UTC or UT1-TAI in seconds (see param type)

lod - length of day

x - X component of pole motion

y - Y component of pole motion

dx - nutation correction for the X component (IAU 2000) or longitude offset (IAU 1980)

dy - nutation correction for the Y component (IAU 2000) or obliquity offset (IAU 1980)

type - dt type : UT1-TAI or UT1-UTC

Throws:

OrekitException - if UTC time scale cannot be retrieved

EOPEntry

public EOPEntry(DateComponents datec,
                double dt,
                double lod,
                double x,
                double y,
                double dx,
                double dy,
                EOPEntry.DtType type)
         throws OrekitException

Constructor with DateComponents parameter.

Parameters:

datec - a DateComponents instance

dt - UT1-UTC or UT1-TAI in seconds (see param type)

lod - length of day

x - X component of pole motion

y - Y component of pole motion

dx - nutation correction for the X component (IAU 2000) or longitude offset (IAU 1980)

dy - nutation correction for the Y component (IAU 2000) or obliquity offset (IAU 1980)

type - dt type : UT1-TAI or UT1-UTC

Throws:

OrekitException - if UTC time scale cannot be retrieved

EOPEntry

public EOPEntry(AbsoluteDate adate,
                double dt,
                double lod,
                double x,
                double y,
                double dx,
                double dy,
                EOPEntry.DtType type)
         throws OrekitException

Constructor with an AbsoluteDate parameter.

Parameters:

adate - an AbsoluteDate instance

dt - UT1-UTC or UT1-TAI in seconds (see param type)

lod - length of day

x - X component of pole motion

y - Y component of pole motion

dx - nutation correction for the X component (IAU 2000) or longitude offset (IAU 1980)

dy - nutation correction for the Y component (IAU 2000) or obliquity offset (IAU 1980)

type - dt type : UT1-TAI or UT1-UTC

Throws:

OrekitException - if UTC time scale cannot be retrieved

Method Detail

getDate

public AbsoluteDate getDate()

Get the date.

Specified by:

getDate in interface TimeStamped

Returns:

date attached to the object

getUT1MinusTAI

public double getUT1MinusTAI()

Get the UT1-TAI value.

Returns:

UT1-TAI in seconds

getLOD

public double getLOD()

Get the LoD (Length of Day) value.

Returns:

LoD in seconds

getX

public double getX()

Get the X component of the pole motion.

Returns:

X component of pole motion

getY

public double getY()

Get the Y component of the pole motion.

Returns:

Y component of pole motion

getDX

public double getDX()

Get the dx correction of the X component of the celestial pole (IAU 2000) or celestial pole offset in longitude (IAU 1980).

Returns:

δΔψ₁₉₈₀ parameter (radians) or δX₂₀₀₀ parameter (radians)

getDY

public double getDY()

Get the dy correction of the Y component of the celestial pole (IAU 2000) or celestial pole offset in obliquity (IAU 1980).

Returns:

δΔε₁₉₈₀ parameter (radians) or δY₂₀₀₀ parameter (radians)