Package org.orekit.files.ccsds.ndm.odm.oem

Class Oem

java.lang.Object

org.orekit.files.ccsds.ndm.NdmConstituent<OdmHeader,OemSegment>

org.orekit.files.ccsds.ndm.odm.oem.Oem

All Implemented Interfaces:

EphemerisFile<TimeStampedPVCoordinates,OemSegment>

public class Oem
extends NdmConstituent<OdmHeader,OemSegment>
implements EphemerisFile<TimeStampedPVCoordinates,OemSegment>

This class stores all the information of the OEM File parsed by OEMParser.

It contains the header and a list of Ephemerides Blocks each containing metadata, a list of ephemerides data lines and optional covariance matrices (and their metadata).

Since:

6.1

Author:

sports, Evan Ward

Nested Class Summary

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

EphemerisFile.EphemerisSegment<C extends TimeStampedPVCoordinates>, EphemerisFile.SatelliteEphemeris<C extends TimeStampedPVCoordinates,S extends EphemerisFile.EphemerisSegment<C>>

Field Summary

Fields

Modifier and Type	Field	Description
static final String	FORMAT_VERSION_KEY	Key for format version.
static final String	ROOT	Root element for XML files.
static final String	UNKNOWN_OBJECT	Default name for unknown object.

Constructor Summary

Constructors

Constructor	Description
Oem(OdmHeader header, List<OemSegment> segments, IERSConventions conventions, DataContext dataContext, double mu)	Simple constructor.

Method Summary

Modifier and Type	Method	Description
void	checkTimeSystems()	Check that, according to the CCSDS standard, every OEMBlock has the same time system.
Map<String,OemSatelliteEphemeris>	getSatellites()	Get the loaded ephemeris for each satellite in the file.

Methods inherited from class org.orekit.files.ccsds.ndm.NdmConstituent

getConventions, getDataContext, getHeader, getSegments, setHeader, setSegments, validate

Methods inherited from class java.lang.Object

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

Field Details

ROOT

public static final String ROOT

Root element for XML files.

See Also:

• Constant Field Values

FORMAT_VERSION_KEY

public static final String FORMAT_VERSION_KEY

Key for format version.

See Also:

• Constant Field Values

UNKNOWN_OBJECT

public static final String UNKNOWN_OBJECT

Default name for unknown object.

See Also:

• Constant Field Values

Constructor Details

Oem

public Oem(OdmHeader header,
 List<OemSegment> segments,
 IERSConventions conventions,
 DataContext dataContext,
 double mu)

Simple constructor.

Parameters:

header - file header

segments - file segments

conventions - IERS conventions

dataContext - used for creating frames, time scales, etc.

mu - gravitational coefficient

Method Details

getSatellites

public Map<String,OemSatelliteEphemeris> getSatellites()

Get the loaded ephemeris for each satellite in the file.

The metadata entries checked for use as the key are the following ones, the first non-null being used. The map from OEM files always contains only one object.

• OdmCommonMetadata.getObjectID() OBJECT_ID} if non-null and not equal to UNKNOWN_OBJECT
• OBJECT_NAME
• the default name UNKNOWN_OBJECT for unknown objects

Specified by:

getSatellites in interface EphemerisFile<TimeStampedPVCoordinates,OemSegment>

Returns:

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

checkTimeSystems

public void checkTimeSystems()

Check that, according to the CCSDS standard, every OEMBlock has the same time system.