Package org.orekit.files.stk
Class STKEphemerisFile.STKEphemerisSegment
java.lang.Object
org.orekit.files.stk.STKEphemerisFile.STKEphemerisSegment
- All Implemented Interfaces:
EphemerisFile.EphemerisSegment<TimeStampedPVCoordinates>
- Enclosing class:
STKEphemerisFile
public static class STKEphemerisFile.STKEphemerisSegment
extends Object
implements EphemerisFile.EphemerisSegment<TimeStampedPVCoordinates>
Ephemeris segment from an STK ephemeris file.
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Constructor Summary
ConstructorsConstructorDescriptionSTKEphemerisSegment(double mu, Frame frame, int interpolationSamples, CartesianDerivativesFilter cartesianDerivativesFilter, List<TimeStampedPVCoordinates> timeStampedPVCoordinates) Constructs aSTKEphemerisFile.STKEphemerisSegmentinstance. -
Method Summary
Modifier and TypeMethodDescriptionGet which derivatives of position are available in this ephemeris segment.Get the coordinates for this ephemeris segment inEphemerisFile.EphemerisSegment.getFrame().getFrame()Get the reference frame for this ephemeris segment.intGet the number of samples to use in interpolation.doublegetMu()Get the standard gravitational parameter for the satellite.getStart()Get the start date of this ephemeris segment.getStop()Get the end date of this ephemeris segment.Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, waitMethods inherited from interface org.orekit.files.general.EphemerisFile.EphemerisSegment
getInertialFrame, getPropagator, getPropagator
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Constructor Details
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STKEphemerisSegment
public STKEphemerisSegment(double mu, Frame frame, int interpolationSamples, CartesianDerivativesFilter cartesianDerivativesFilter, List<TimeStampedPVCoordinates> timeStampedPVCoordinates) Constructs aSTKEphemerisFile.STKEphemerisSegmentinstance.- Parameters:
mu- gravitational parameter (m^3/s^2)frame- frameinterpolationSamples- number of samples to use in interpolationcartesianDerivativesFilter- Cartesian derivatives filtertimeStampedPVCoordinates- time-sorted time/position/velocity data
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Method Details
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getMu
public double getMu()Description copied from interface:EphemerisFile.EphemerisSegmentGet the standard gravitational parameter for the satellite.- Specified by:
getMuin interfaceEphemerisFile.EphemerisSegment<TimeStampedPVCoordinates>- Returns:
- the gravitational parameter used in
EphemerisFile.EphemerisSegment.getPropagator(AttitudeProvider), in m³/s².
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getFrame
Description copied from interface:EphemerisFile.EphemerisSegmentGet the reference frame for this ephemeris segment. The defining frame forEphemerisFile.EphemerisSegment.getCoordinates().- Specified by:
getFramein interfaceEphemerisFile.EphemerisSegment<TimeStampedPVCoordinates>- Returns:
- the reference frame for this segment. Never
null.
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getInterpolationSamples
public int getInterpolationSamples()Description copied from interface:EphemerisFile.EphemerisSegmentGet the number of samples to use in interpolation.- Specified by:
getInterpolationSamplesin interfaceEphemerisFile.EphemerisSegment<TimeStampedPVCoordinates>- Returns:
- the number of points to use for interpolation.
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getAvailableDerivatives
Description copied from interface:EphemerisFile.EphemerisSegmentGet which derivatives of position are available in this ephemeris segment.While
EphemerisFile.EphemerisSegment.getCoordinates()always returns position, velocity, and acceleration the return value from this method indicates which of those are in the ephemeris file and are actually valid.- Specified by:
getAvailableDerivativesin interfaceEphemerisFile.EphemerisSegment<TimeStampedPVCoordinates>- Returns:
- a value indicating if the file contains velocity and/or acceleration data.
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getCoordinates
Description copied from interface:EphemerisFile.EphemerisSegmentGet the coordinates for this ephemeris segment inEphemerisFile.EphemerisSegment.getFrame().- Specified by:
getCoordinatesin interfaceEphemerisFile.EphemerisSegment<TimeStampedPVCoordinates>- Returns:
- a list of state vectors in chronological order. The coordinates are not
necessarily evenly spaced in time. The value of
EphemerisFile.EphemerisSegment.getAvailableDerivatives()indicates if the velocity or accelerations were specified in the file. Any position, velocity, or acceleration coordinates that are not specified in the ephemeris file are zero in the returned values.
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getStart
Description copied from interface:EphemerisFile.EphemerisSegmentGet the start date of this ephemeris segment.The date returned by this method is equivalent to
getPropagator().getMinDate().- Specified by:
getStartin interfaceEphemerisFile.EphemerisSegment<TimeStampedPVCoordinates>- Returns:
- ephemeris segment start date.
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getStop
Description copied from interface:EphemerisFile.EphemerisSegmentGet the end date of this ephemeris segment.The date returned by this method is equivalent to
getPropagator().getMaxDate().- Specified by:
getStopin interfaceEphemerisFile.EphemerisSegment<TimeStampedPVCoordinates>- Returns:
- ephemeris segment end date.
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