Package org.orekit.files.stk
Class STKEphemerisFile.STKEphemerisSegment
- java.lang.Object
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- org.orekit.files.stk.STKEphemerisFile.STKEphemerisSegment
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- 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
Constructors Constructor Description STKEphemerisSegment(double mu, Frame frame, int interpolationSamples, CartesianDerivativesFilter cartesianDerivativesFilter, List<TimeStampedPVCoordinates> timeStampedPVCoordinates)
Constructs aSTKEphemerisFile.STKEphemerisSegment
instance.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description CartesianDerivativesFilter
getAvailableDerivatives()
Get which derivatives of position are available in this ephemeris segment.List<TimeStampedPVCoordinates>
getCoordinates()
Get the coordinates for this ephemeris segment inEphemerisFile.EphemerisSegment.getFrame()
.Frame
getFrame()
Get the reference frame for this ephemeris segment.int
getInterpolationSamples()
Get the number of samples to use in interpolation.double
getMu()
Get the standard gravitational parameter for the satellite.AbsoluteDate
getStart()
Get the start date of this ephemeris segment.AbsoluteDate
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, wait
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Methods inherited from interface org.orekit.files.general.EphemerisFile.EphemerisSegment
getInertialFrame, getPropagator, getPropagator
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Constructor Detail
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STKEphemerisSegment
public STKEphemerisSegment(double mu, Frame frame, int interpolationSamples, CartesianDerivativesFilter cartesianDerivativesFilter, List<TimeStampedPVCoordinates> timeStampedPVCoordinates)
Constructs aSTKEphemerisFile.STKEphemerisSegment
instance.- 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 Detail
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getMu
public double getMu()
Description copied from interface:EphemerisFile.EphemerisSegment
Get the standard gravitational parameter for the satellite.- Specified by:
getMu
in interfaceEphemerisFile.EphemerisSegment<TimeStampedPVCoordinates>
- Returns:
- the gravitational parameter used in
EphemerisFile.EphemerisSegment.getPropagator(AttitudeProvider)
, in m³/s².
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getFrame
public Frame getFrame()
Description copied from interface:EphemerisFile.EphemerisSegment
Get the reference frame for this ephemeris segment. The defining frame forEphemerisFile.EphemerisSegment.getCoordinates()
.- Specified by:
getFrame
in 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.EphemerisSegment
Get the number of samples to use in interpolation.- Specified by:
getInterpolationSamples
in interfaceEphemerisFile.EphemerisSegment<TimeStampedPVCoordinates>
- Returns:
- the number of points to use for interpolation.
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getAvailableDerivatives
public CartesianDerivativesFilter getAvailableDerivatives()
Description copied from interface:EphemerisFile.EphemerisSegment
Get 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:
getAvailableDerivatives
in interfaceEphemerisFile.EphemerisSegment<TimeStampedPVCoordinates>
- Returns:
- a value indicating if the file contains velocity and/or acceleration data.
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getCoordinates
public List<TimeStampedPVCoordinates> getCoordinates()
Description copied from interface:EphemerisFile.EphemerisSegment
Get the coordinates for this ephemeris segment inEphemerisFile.EphemerisSegment.getFrame()
.- Specified by:
getCoordinates
in 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
public AbsoluteDate getStart()
Description copied from interface:EphemerisFile.EphemerisSegment
Get the start date of this ephemeris segment.The date returned by this method is equivalent to
getPropagator().getMinDate()
.- Specified by:
getStart
in interfaceEphemerisFile.EphemerisSegment<TimeStampedPVCoordinates>
- Returns:
- ephemeris segment start date.
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getStop
public AbsoluteDate getStop()
Description copied from interface:EphemerisFile.EphemerisSegment
Get the end date of this ephemeris segment.The date returned by this method is equivalent to
getPropagator().getMaxDate()
.- Specified by:
getStop
in interfaceEphemerisFile.EphemerisSegment<TimeStampedPVCoordinates>
- Returns:
- ephemeris segment end date.
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