Package org.orekit.files.sp3

Class SP3File

java.lang.Object

org.orekit.files.sp3.SP3File

All Implemented Interfaces:

EphemerisFile

public class SP3File
extends Object
implements EphemerisFile

Represents a parsed SP3 orbit file.

Author:

Thomas Neidhart, Evan Ward

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	SP3File.SP3Coordinate	A single record of position clock and possibly derivatives in an SP3 file.
class	SP3File.SP3Ephemeris	An ephemeris for a single satellite in a SP3 file.
static class	SP3File.SP3FileType	File type indicator.
static class	SP3File.SP3OrbitType	Orbit type indicator.
static class	SP3File.TimeSystem	Time system used throughout this SP3 file.

Nested classes/interfaces inherited from interface org.orekit.files.general.EphemerisFile

EphemerisFile.EphemerisSegment, EphemerisFile.SatelliteEphemeris

Field Summary

Fields

Modifier and Type	Field	Description
static String	SP3_FRAME_CENTER_STRING	String representation of the center of ephemeris coordinate system.

Method Summary

Modifier and Type	Method	Description
void	addSatellite(String satId)	Add a new satellite with a given identifier to the list of stored satellites.
boolean	containsSatellite(String satId)	Tests whether a satellite with the given id is contained in this orbit file.
String	getAgency()	Returns the agency that prepared this SP3 file.
String	getCoordinateSystem()	Returns the coordinate system of the entries in this orbit file.
String	getDataUsed()	Returns the data used indicator from the SP3 file.
double	getDayFraction()	Returns the day fraction for this SP3 file.
AbsoluteDate	getEpoch()	Returns the start epoch of the orbit file.
double	getEpochInterval()	Returns the time interval between epochs (in seconds).
int	getGpsWeek()	Returns the GPS week as contained in the SP3 file.
int	getJulianDay()	Returns the julian day for this SP3 file.
int	getNumberOfEpochs()	Returns the number of epochs contained in this orbit file.
SP3File.SP3OrbitType	getOrbitType()	Returns the SP3File.SP3OrbitType for this SP3 file.
int	getSatelliteCount()	Get the number of satellites contained in this orbit file.
Map<String,SP3File.SP3Ephemeris>	getSatellites()	Get the loaded ephemeris for each satellite in the file.
double	getSecondsOfWeek()	Returns the seconds of the GPS week as contained in the SP3 file.
SP3File.TimeSystem	getTimeSystem()	Returns the SP3File.TimeSystem used to time-stamp position entries.
SP3File.SP3FileType	getType()	Returns the SP3File.SP3FileType associated with this SP3 file.

Methods inherited from class java.lang.Object

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

Field Detail

SP3_FRAME_CENTER_STRING

public static final String SP3_FRAME_CENTER_STRING

String representation of the center of ephemeris coordinate system.

See Also:

Constant Field Values

Method Detail

getType

public SP3File.SP3FileType getType()

Returns the SP3File.SP3FileType associated with this SP3 file.

Returns:

the file type for this SP3 file

getTimeSystem

public SP3File.TimeSystem getTimeSystem()

Returns the SP3File.TimeSystem used to time-stamp position entries.

Returns:

the SP3File.TimeSystem of the orbit file

getDataUsed

public String getDataUsed()

Returns the data used indicator from the SP3 file.

Returns:

the data used indicator (unparsed)

getEpoch

public AbsoluteDate getEpoch()

Returns the start epoch of the orbit file.

Returns:

the start epoch

getGpsWeek

public int getGpsWeek()

Returns the GPS week as contained in the SP3 file.

Returns:

the GPS week of the SP3 file

getSecondsOfWeek

public double getSecondsOfWeek()

Returns the seconds of the GPS week as contained in the SP3 file.

Returns:

the seconds of the GPS week

getJulianDay

public int getJulianDay()

Returns the julian day for this SP3 file.

Returns:

the julian day

getDayFraction

public double getDayFraction()

Returns the day fraction for this SP3 file.

Returns:

the day fraction

getEpochInterval

public double getEpochInterval()

Returns the time interval between epochs (in seconds).

Returns:

the time interval between epochs

getNumberOfEpochs

public int getNumberOfEpochs()

Returns the number of epochs contained in this orbit file.

Returns:

the number of epochs

getCoordinateSystem

public String getCoordinateSystem()

Returns the coordinate system of the entries in this orbit file.

Returns:

the coordinate system

getOrbitType

public SP3File.SP3OrbitType getOrbitType()

Returns the SP3File.SP3OrbitType for this SP3 file.

Returns:

the orbit type

getAgency

public String getAgency()

Returns the agency that prepared this SP3 file.

Returns:

the agency

addSatellite

public void addSatellite(String satId)

Add a new satellite with a given identifier to the list of stored satellites.

Parameters:

satId - the satellite identifier

getSatellites

public Map<String,SP3File.SP3Ephemeris> getSatellites()

Description copied from interface: EphemerisFile

Get the loaded ephemeris for each satellite in the file.

Specified by:

getSatellites in interface EphemerisFile

Returns:

a map from the satellite's ID to the information about that satellite contained in the file.

getSatelliteCount

public int getSatelliteCount()

Get the number of satellites contained in this orbit file.

Returns:

the number of satellites

containsSatellite

public boolean containsSatellite(String satId)

Tests whether a satellite with the given id is contained in this orbit file.

Parameters:

satId - the satellite id

Returns:

true if the satellite is contained in the file, false otherwise