All Classes

Class	Description
AbsoluteDate	This class represents a specific instant in time.
AbstractAnalyticalPropagator	Common handling of Propagator methods for analytical propagators.
AbstractCovarianceMatrixProvider	Abstract provider handling a predefined initial covariance matrix.
AbstractDetector<T extends EventDetector>	Common parts shared by several orbital events finders.
AbstractForceModel	Base class for force models.
AbstractGaussianContribution	Common handling of DSSTForceModel methods for Gaussian contributions to DSST propagation.
AbstractGNSSAttitudeProvider	Base class for attitude providers for navigation satellites.
AbstractIntegratedPropagator	Common handling of Propagator methods for both numerical and semi-analytical propagators.
AbstractIntegratedPropagator.MainStateEquations	Differential equations for the main state (orbit, attitude and mass).
AbstractMeasurement<T extends ObservedMeasurement<T>>	Abstract class handling measurements boilerplate.
AbstractMeasurementBuilder<T extends ObservedMeasurement<T>>	Base class for measurements builders.
AbstractParametricAcceleration	This class implements a parametric acceleration.
AbstractPropagator	Common handling of Propagator methods for analytical propagators.
AbstractPropagatorBuilder	Base class for propagator builders.
AbstractPropagatorConverter	Common handling of PropagatorConverter methods for propagators conversions.
AbstractScheduler<T extends ObservedMeasurement<T>>	Base implementation of Scheduler managing dates selection.
AdamsBashforthIntegratorBuilder	Builder for AdamsBashforthIntegrator.
AdamsMoultonIntegratorBuilder	Builder for AdamsMoultonIntegrator.
AdapterDetector	Base class for adapting an existing detector.
AdapterPropagator	Orbit propagator that adapts an underlying propagator, adding differential effects.
AdapterPropagator.DifferentialEffect	Interface for orbit differential effects.
AdditionalEquations	This interface allows users to add their own differential equations to a numerical propagator.
AdditionalStateProvider	This interface represents providers for additional state data beyond SpacecraftState.
AggregateBoundedPropagator	A BoundedPropagator that covers a larger time span from several constituent propagators that cover shorter time spans.
AlignmentDetector	Finder for satellite/body alignment events in orbital plane.
AlongTrackAiming	Class used to orient tiles along an orbit track.
AltitudeDetector	Finder for satellite altitude crossing events.
AngularAzEl	Class modeling an Azimuth-Elevation measurement from a ground station.
AngularAzElBuilder	Builder for AngularAzEl measurements.
AngularCoordinates	Simple container for rotation/rotation rate/rotation acceleration triplets.
AngularDerivativesFilter	Enumerate for selecting which derivatives to use in TimeStampedAngularCoordinates and TimeStampedFieldAngularCoordinates interpolation.
AngularIonosphericDelayModifier	Class modifying theoretical angular measurement with ionospheric delay.
AngularRaDec	Class modeling an Right Ascension - Declination measurement from a ground point (station, telescope).
AngularRaDecBuilder	Builder for AngularRaDec measurements.
AngularRadioRefractionModifier	Class modifying theoretical angular measurement with ionospheric radio refractive index.
AngularSeparationDetector	Detects when spacecraft comes close to a moving beacon, as seen from a moving observer.
AngularTroposphericDelayModifier	Class modifying theoretical angular measurement with tropospheric delay.
Antenna	GNSS antenna model.
AntexLoader	Factory for GNSS antennas (both receiver and satellite).
ApsideDetector	Finder for apside crossing events.
AstronomicalAmplitudeReader	Parser for tides astronomical amplitude Hf.
Atmosphere	Interface for atmospheric models.
AtmosphericRefractionModel	Defines an refraction model that can be used to correct for the apparent position of an object due to atmospheric effects.
Attitude	This class handles attitude definition at a given date.
AttitudeProvider	This interface represents an attitude provider model set.
AttitudeProviderModifier	This interface represents an attitude provider that modifies/wraps another underlying provider.
AttitudesSequence	This classes manages a sequence of different attitude providers that are activated in turn according to switching events.
AttitudesSequence.SwitchHandler	Interface for attitude switch notifications.
AuxiliaryElements	Container class for common parameters used by all DSST forces.
BatchLSEstimator	Least squares estimator for orbit determination.
BatchLSObserver	Observer for batch least squares estimator iterations.
BDTScale	Beidou system time scale.
BeidouGeo	Attitude providers for Beidou geostationary orbit navigation satellites.
BeidouIGSO	Attitude providers for Beidou inclined geosynchronous orbit navigation satellites.
BeidouMeo	Attitude providers for Beidou Medium Earth Orbit navigation satellites.
Bias<T extends ObservedMeasurement<T>>	Class modeling a measurement bias.
BodiesElements	Elements of the bodies having an effect on nutation.
BodyCenterPointing	This class handles body center pointing attitude provider.
BodyShape	Interface representing the rigid surface shape of a natural body.
BooleanDetector	This class provides AND and OR operations for event detectors.
BoundedPropagator	This interface is intended for ephemerides valid only during a time range.
BoxAndSolarArraySpacecraft	Class representing the features of a classical satellite with a convex body shape and rotating flat solar arrays.
BoxAndSolarArraySpacecraft.Facet	Class representing a single facet of a convex spacecraft body.
BurstSelector	Selector generating high rate bursts of dates separated by some rest period.
CachedNormalizedSphericalHarmonicsProvider	Caching wrapper for NormalizedSphericalHarmonicsProvider.
CartesianDerivativesFilter	Enumerate for selecting which derivatives to use in TimeStampedPVCoordinates and TimeStampedFieldPVCoordinates interpolation.
CartesianOrbit	This class holds Cartesian orbital parameters.
CCSDSFrame	Frames used in CCSDS Orbit Data Messages.
CcsdsModifiedFrame	A reference frame created from the REF_FRAME and CENTER_NAME is a CCSDS OPM, OMM, or OEM file.
CcsdsTimeScale	The set of time scales defined in Annex A of the ODM CCSDS standard 502.0-B-2.
CelestialBody	Interface for celestial bodies like Sun, Moon or solar system planets.
CelestialBodyFactory	Factory class for bodies of the solar system.
CelestialBodyLoader	Interface for loading celestial bodies.
CelestialBodyPointed	This class handles a celestial body pointed attitude provider.
CenterName	Orbit central bodies for which a Celestial body can be created.
ChronologicalComparator	Comparator for TimeStamped instance.
CircularFieldOfViewDetector	Finder for target entry/exit events with respect to a satellite sensor Field Of View.
CircularOrbit	This class handles circular orbital parameters.
CjSjCoefficient	Compute the Sj(k, h) and the Cj(k, h) series and their partial derivatives with respect to k and h.
ClassicalRungeKuttaIntegratorBuilder	Builder for ClassicalRungeKuttaIntegrator.
ClasspathCrawler	Provider for data files stored as resources in the classpath.
ClockCorrectionsProvider	Provider for clock corrections as additional states.
CoefficientsFactory	This class is designed to provide coefficient from the DSST theory.
CoefficientsFactory.NSKey	Key formed by two integer values.
ComparableMeasurement	Base interface for comparing measurements regardless of their type.
ConstantAzimuthAiming	Class used to orient tiles with respect to a geographic azimuth.
ConstantProcessNoise	Provider for constant process noise matrices.
Constants	Set of useful physical constants.
ConstantThrustManeuver	This class implements a simple maneuver with constant thrust.
ContinueOnEvent<T extends EventDetector>	Event handler which will always return continue as a state.
ContinuousScheduler<T extends ObservedMeasurement<T>>	Scheduler generating measurements sequences continuously.
CovarianceMatrixProvider	Provider for process noise matrices.
DataFilter	Interface for filtering data (typically uncompressing it) in data providers before passing it to data loaders.
DataLoader	Interface for loading data files from data providers.
DataProvider	Interface for providing data files to file loaders.
DataProvidersManager	Singleton class managing all supported data providers.
DateComponents	Class representing a date broken up as year, month and day components.
DateDetector	Finder for date events.
DatesSelector	Interface for selecting dates within an interval.
DateTimeComponents	Holder for date and time components.
DeepSDP4	This class contains the methods that compute deep space perturbation terms.
DelaunayArguments	Delaunay arguments used for nutation or tides.
Differentiation	Utility class for differentiating various kinds of functions.
DirectoryCrawler	Provider for data files stored in a directories tree on filesystem.
DiscreteTroposphericModel	Defines a tropospheric model, used to calculate the path delay imposed to electro-magnetic signals between an orbital satellite and a ground station.
DOP	This class is a container for the result of a single DOP computation.
DOPComputer	This class aims at computing the dilution of precision.
DormandPrince54IntegratorBuilder	Builder for DormandPrince54Integrator.
DormandPrince853IntegratorBuilder	Builder for DormandPrince853Integrator.
DragForce	Atmospheric drag force model.
DragSensitive	Interface for spacecraft that are sensitive to atmospheric drag forces.
DSSTAtmosphericDrag	Atmospheric drag contribution to the DSSTPropagator.
DSSTForceModel	This interface represents a force modifying spacecraft motion for a DSSTPropagator.
DSSTPropagator	This class propagates orbits using the DSST theory.
DSSTSolarRadiationPressure	Solar radiation pressure contribution to the DSSTPropagator.
DSSTTesseral	Tesseral contribution to the central body gravitational perturbation.
DSSTThirdBody	Third body attraction perturbation to the DSSTPropagator.
DSSTZonal	Zonal contribution to the central body gravitational perturbation.
DTM2000	This atmosphere model is the realization of the DTM-2000 model.
DTM2000InputParameters	Container for solar activity data, compatible with DTM2000 Atmosphere model.
DynamicOutlierFilter<T extends ObservedMeasurement<T>>	Modifier that sets estimated measurement weight to 0 if residual is too far from expected domain.
EarthITU453AtmosphereRefraction	Implementation of refraction model for Earth exponential atmosphere based on ITU-R P.834-7 recommendation.
EarthShape	All models of Earth's shape have some common properties that are not shared with arbitrary BodyShapes.
EarthStandardAtmosphereRefraction	Implementation of refraction model for Earth standard atmosphere.
EcksteinHechlerPropagator	This class propagates a SpacecraftState using the analytical Eckstein-Hechler model.
EcksteinHechlerPropagatorBuilder	Builder for Eckstein-Hechler propagator.
EclipseDetector	Finder for satellite eclipse related events.
EclipticProvider	An inertial frame aligned with the ecliptic.
EGMFormatReader	This reader is adapted to the EGM Format.
ElevationDetector	Finder for satellite raising/setting events that allows for the setting of azimuth and/or elevation bounds or a ground azimuth/elevation mask input.
ElevationExtremumDetector	Detector for elevation extremum with respect to a ground point.
ElevationMask	Class for modeling the ground elevation values around a given point.
Ellipse	Model of a 2D ellipse in 3D space.
Ellipsoid	Modeling of a general three-axes ellipsoid.
EllipsoidTessellator	Class used to tessellate an interest zone on an ellipsoid in either tiles or grids of geodetic points.
EnablingPredicate<S extends EventDetector>	This interface represents an event enabling predicate function.
EOPBasedTransformProvider	Interface for Transform providers that use Earth Orientation Parameters.
EOPEntry	This class holds an Earth Orientation Parameters entry.
EOPHistory	This class loads any kind of Earth Orientation Parameter data throughout a large time range.
EOPHistoryLoader	Interface for loading Earth Orientation Parameters history.
Ephemeris	This class is designed to accept and handle tabulated orbital entries.
EphemerisFile	An interface for accessing the data stored in an ephemeris file and using the data to create a working Propagator.
EphemerisFile.EphemerisSegment	A segment of an ephemeris for a satellite.
EphemerisFile.SatelliteEphemeris	Contains the information about a single satellite from an EphemerisFile.
EphemerisFileParser	Parse an ephemeris file.
EphemerisFileWriter	An interface for writing out ephemeris files to disk.
EquinoctialOrbit	This class handles equinoctial orbital parameters, which can support both circular and equatorial orbits.
EstimatedEarthFrameProvider	Class modeling an Earth frame whose Earth Orientation Parameters can be estimated.
EstimatedMeasurement<T extends ObservedMeasurement<T>>	Class holding an estimated theoretical value associated to an observed measurement.
EstimatedMeasurement.Status	Enumerate for the status of the measurement.
EstimatedTroposphericModel	An estimated tropospheric model.
EstimationModifier<T extends ObservedMeasurement<T>>	Interface for estimated measurements modifiers used for orbit determination.
EstimationsProvider	Interface for retrieving estimated measurements during orbit determination.
EulerIntegratorBuilder	Builder for EulerIntegrator.
EventBasedScheduler<T extends ObservedMeasurement<T>>	Scheduler based on EventDetector for generating measurements sequences.
EventDetector	This interface represents space-dynamics aware events detectors.
EventEnablingPredicateFilter<T extends EventDetector>	Wrapper used to detect events only when enabled by an external predicated function.
EventHandler<T extends EventDetector>	An interface defining how to override event handling behavior in the standard propagator eventing classes without requiring subclassing.
EventHandler.Action	Enumerate for actions to be performed when an event occurs.
EventShifter<T extends EventDetector>	Wrapper shifting events occurrences times.
EventsLogger	This class logs events detectors events during propagation.
EventsLogger.LoggedEvent	Class for logged events entries.
EventSlopeFilter<T extends EventDetector>	Wrapper used to detect only increasing or decreasing events.
EventState<T extends EventDetector>	This class handles the state for one event detector during integration steps.
EventState.EventOccurrence	Class to hold the data related to an event occurrence that is needed to decide how to modify integration.
ExtendedPVCoordinatesProvider	Interface for PV coordinates providers that also support fields.
FactoryManagedFrame	Base class for the predefined frames that are managed by FramesFactory.
FESCHatEpsilonReader	Reader for ocean tides files following the fes2004.dat format.
FESCnmSnmReader	Reader for ocean tides files following the fes2004_Cnm-Snm.dat format.
FieldAbsoluteDate<T extends org.hipparchus.RealFieldElement<T>>	This class represents a specific instant in time.
FieldAbstractAnalyticalPropagator<T extends org.hipparchus.RealFieldElement<T>>	Common handling of FieldPropagator methods for analytical propagators.
FieldAbstractDetector<D extends FieldEventDetector<T>,T extends org.hipparchus.RealFieldElement<T>>	Common parts shared by several orbital events finders.
FieldAbstractIntegratedPropagator<T extends org.hipparchus.RealFieldElement<T>>	Common handling of FieldPropagator methods for both numerical and semi-analytical propagators.
FieldAbstractIntegratedPropagator.MainStateEquations<T extends org.hipparchus.RealFieldElement<T>>	Differential equations for the main state (orbit, attitude and mass).
FieldAbstractPropagator<T extends org.hipparchus.RealFieldElement<T>>	Common handling of Propagator methods for analytical propagators.
FieldAdditionalEquations<T extends org.hipparchus.RealFieldElement<T>>	This interface allows users to add their own differential equations to a numerical propagator.
FieldAdditionalStateProvider<T extends org.hipparchus.RealFieldElement<T>>	This interface represents providers for additional state data beyond SpacecraftState.
FieldAltitudeDetector<T extends org.hipparchus.RealFieldElement<T>>	Finder for satellite altitude crossing events.
FieldAngularCoordinates<T extends org.hipparchus.RealFieldElement<T>>	Simple container for rotation / rotation rate pairs, using RealFieldElement.
FieldApsideDetector<T extends org.hipparchus.RealFieldElement<T>>	Finder for apside crossing events.
FieldAttitude<T extends org.hipparchus.RealFieldElement<T>>	This class handles attitude definition at a given date.
FieldBodiesElements<T extends org.hipparchus.RealFieldElement<T>>	Elements of the bodies having an effect on nutation.
FieldBoundedPropagator<T extends org.hipparchus.RealFieldElement<T>>	This interface is intended for ephemerides valid only during a time range.
FieldCartesianOrbit<T extends org.hipparchus.RealFieldElement<T>>	This class holds Cartesian orbital parameters.
FieldCircularOrbit<T extends org.hipparchus.RealFieldElement<T>>	This class handles circular orbital parameters.
FieldContinueOnEvent<KK extends FieldEventDetector<T>,T extends org.hipparchus.RealFieldElement<T>>	Event handler which will always return continue as a state.
FieldDateDetector<T extends org.hipparchus.RealFieldElement<T>>	Finder for date events.
FieldDelaunayArguments<T extends org.hipparchus.RealFieldElement<T>>	Delaunay arguments used for nutation or tides.
FieldEcksteinHechlerPropagator<T extends org.hipparchus.RealFieldElement<T>>	This class propagates a FieldSpacecraftState using the analytical Eckstein-Hechler model.
FieldEclipseDetector<T extends org.hipparchus.RealFieldElement<T>>	Finder for satellite eclipse related events.
FieldElevationDetector<T extends org.hipparchus.RealFieldElement<T>>	Finder for satellite raising/setting events that allows for the setting of azimuth and/or elevation bounds or a ground azimuth/elevation mask input.
FieldEquinoctialOrbit<T extends org.hipparchus.RealFieldElement<T>>	This class handles equinoctial orbital parameters, which can support both circular and equatorial orbits.
FieldEventDetector<T extends org.hipparchus.RealFieldElement<T>>	This interface represents space-dynamics aware events detectors.
FieldEventHandler<KK extends FieldEventDetector<T>,T extends org.hipparchus.RealFieldElement<T>>	An interface defining how to override event handling behavior in the standard propagator eventing classes without requiring subclassing.
FieldEventHandler.Action	Enumerate for actions to be performed when an event occurs.
FieldEventsLogger<T extends org.hipparchus.RealFieldElement<T>>	This class logs events detectors events during propagation.
FieldEventsLogger.FieldLoggedEvent<T extends org.hipparchus.RealFieldElement<T>>	Class for logged events entries.
FieldEventState<D extends FieldEventDetector<T>,T extends org.hipparchus.RealFieldElement<T>>	This class handles the state for one event detector during integration steps.
FieldEventState.EventOccurrence<T extends org.hipparchus.RealFieldElement<T>>	Class to hold the data related to an event occurrence that is needed to decide how to modify integration.
FieldGeodeticPoint<T extends org.hipparchus.RealFieldElement<T>>	Point location relative to a 2D body surface, using RealFieldElement.
FieldIntegratedEphemeris<T extends org.hipparchus.RealFieldElement<T>>	This class stores sequentially generated orbital parameters for later retrieval.
FieldKeplerianOrbit<T extends org.hipparchus.RealFieldElement<T>>	This class handles traditional Keplerian orbital parameters.
FieldKeplerianPropagator<T extends org.hipparchus.RealFieldElement<T>>	Simple Keplerian orbit propagator.
FieldModeHandler<T extends org.hipparchus.RealFieldElement<T>>	Common interface for all propagator mode handlers initialization.
FieldNodeDetector<T extends org.hipparchus.RealFieldElement<T>>	Finder for node crossing events.
FieldNumericalPropagator<T extends org.hipparchus.RealFieldElement<T>>	This class propagates orbits using numerical integration.
FieldOfView	Class representing a spacecraft sensor Field Of View.
FieldOfViewDetector	Finder for target entry/exit events with respect to a satellite sensor Field Of View.
FieldOrbit<T extends org.hipparchus.RealFieldElement<T>>	This class handles orbital parameters.
FieldOrekitFixedStepHandler<T extends org.hipparchus.RealFieldElement<T>>	This interface is a space-dynamics aware fixed size step handler.
FieldOrekitStepHandler<T extends org.hipparchus.RealFieldElement<T>>	This interface is a space-dynamics aware step handler.
FieldOrekitStepHandlerMultiplexer<T extends org.hipparchus.RealFieldElement<T>>	This class gathers several OrekitStepHandler instances into one.
FieldOrekitStepInterpolator<T extends org.hipparchus.RealFieldElement<T>>	This interface is a space-dynamics aware step interpolator.
FieldOrekitStepNormalizer<T extends org.hipparchus.RealFieldElement<T>>	This class wraps an object implementing OrekitFixedStepHandler into a OrekitStepHandler.
FieldPoleCorrection<T extends org.hipparchus.RealFieldElement<T>>	Simple container class for pole correction parameters.
FieldPropagator<T extends org.hipparchus.RealFieldElement<T>>	This interface provides a way to propagate an orbit at any time.
FieldPVCoordinates<T extends org.hipparchus.RealFieldElement<T>>	Simple container for Position/Velocity pairs, using RealFieldElement.
FieldPVCoordinatesProvider<T extends org.hipparchus.RealFieldElement<T>>	Interface for PV coordinates providers.
FieldSpacecraftState<T extends org.hipparchus.RealFieldElement<T>>	This class is the representation of a complete state holding orbit, attitude and mass information at a given date.
FieldStateMapper<T extends org.hipparchus.RealFieldElement<T>>	This class maps between raw double elements and FieldSpacecraftState instances.
FieldStopOnDecreasing<KK extends FieldEventDetector<T>,T extends org.hipparchus.RealFieldElement<T>>	Handle a detection event and choose what to do next.
FieldStopOnEvent<KK extends FieldEventDetector<T>,T extends org.hipparchus.RealFieldElement<T>>	Event handler which will always return continue as a state.
FieldStopOnIncreasing<KK extends FieldEventDetector<T>,T extends org.hipparchus.RealFieldElement<T>>	Handle a detection event and choose what to do next.
FieldTimeDerivativesEquations<T extends org.hipparchus.RealFieldElement<T>>	Interface summing up the contribution of several forces into orbit and mass derivatives.
FieldTimeInterpolable<T extends FieldTimeInterpolable<T,KK>,KK extends org.hipparchus.RealFieldElement<KK>>	This interface represents objects that can be interpolated in time.
FieldTimeShiftable<T extends FieldTimeInterpolable<T,KK>,KK extends org.hipparchus.RealFieldElement<KK>>	This interface represents objects that can be shifted in time.
FieldTimeSpanMap<T,D extends org.hipparchus.RealFieldElement<D>>	Container for objects that apply to spans of time.
FieldTimeSpanMap.Transition<S,D extends org.hipparchus.RealFieldElement<D>>	Local class holding transition times.
FieldTimeStamped<T extends org.hipparchus.RealFieldElement<T>>	This interface represents objects that have a AbsoluteDate date attached to them.
FieldTransform<T extends org.hipparchus.RealFieldElement<T>>	Transformation class in three dimensional space.
FieldTransformGenerator<T extends org.hipparchus.RealFieldElement<T>>	Generator to use field transforms in GenericTimeStampedCache.
FilterType	Enumerate for filtering events.
FiniteDifferencePropagatorConverter	Propagator converter using finite differences to compute the Jacobian.
FixedNumberInterpolationGrid	Interpolation grid where a fixed number of points are evenly spaced between the start and the end of the integration step.
FixedRate	This class handles a simple attitude provider at constant rate around a fixed axis.
FixedStepSelector	Selector generating a continuous stream of dates separated by a constant step.
FixedTransformProvider	Transform provider using fixed transform.
FixedTroposphericDelay	A static tropospheric model that interpolates the actual tropospheric delay based on values read from a configuration file (tropospheric-delay.txt) via the DataProvidersManager.
FootprintOverlapDetector	Detector triggered by geographical region entering/leaving a spacecraft sensor Field Of View.
ForceModel	This interface represents a force modifying spacecraft motion.
Frame	Tridimensional references frames class.
FrameAncestorException	This class is the base class for exception thrown by the UpdatableFrame.updateTransform method.
FramesFactory	Factory for predefined reference frames.
Frequency	Enumerate for GNSS frequencies.
FrequencyPattern	Pattern for GNSS antenna model on one frequency.
FunctionalDetector	A detector that implements the FunctionalDetector.g(SpacecraftState) function using a lambda that can be set using FunctionalDetector.withFunction(ToDoubleFunction).
FunctionalDetector.GFunction	Deprecated. Use ToDoubleFunction instead.
FundamentalNutationArguments	Class computing the fundamental arguments for nutation and tides.
Galileo	Attitude providers for Galileo navigation satellites.
GalileoScale	Galileo system time scale.
GammaMnsFunction	Compute the Γmn,s(γ) function from equation 2.7.1-(13).
Generator	Main generator for observed measurements.
GenericGNSS	Attitude providers for navigation satellites for which no specialized model is known.
GenericTimeStampedCache<T extends TimeStamped>	Generic thread-safe cache for time-stamped data.
GeodeticPoint	Point location relative to a 2D body surface.
GeographicZoneDetector	Detector for entry/exit of a zone defined by geographic boundaries.
Geoid	A geoid is a level surface of the gravity potential of a body.
GeoMagneticElements	Contains the elements to represent a magnetic field at a single point.
GeoMagneticField	Used to calculate the geomagnetic field at a given geodetic point on earth.
GeoMagneticFieldFactory	Factory for different GeoMagneticField models.
GeoMagneticFieldFactory.FieldModel	The currently supported geomagnetic field models.
GeoMagneticModelLoader	Loads geomagnetic field models from a given input stream.
GHIJjsPolynomials	Compute the Gjs, Hjs, Ijs and Jjs polynomials in the equinoctial elements h, k and the direction cosines α and β and their partial derivatives with respect to k, h, α and β.
GHmsjPolynomials	Compute the Gmsj and the Hmsj polynomials in the equinoctial elements h, k and the direction cosines α and β and their partial derivatives with respect to k, h, α and β.
GillIntegratorBuilder	Builder for GillIntegrator.
GlobalMappingFunctionModel	The Global Mapping Function model for radio techniques.
GlobalPressureTemperature2Model	The Global Pressure and Temperature 2 (GPT2) model.
GlobalPressureTemperatureModel	The Global Pressure and Temperature model.
Glonass	Attitude providers for Glonass navigation satellites.
GLONASSScale	GLONASS time scale.
GMSTScale	Greenwich Mean Sidereal Time.
GNSSAttitudeProvider	Attitude providers for navigation satellites.
GPSAlmanac	This class holds a GPS almanac as read from SEM or YUMA files.
GPSBlockIIA	Attitude providers for GPS block IIR navigation satellites.
GPSBlockIIF	Attitude providers for GPS block IIF navigation satellites.
GPSBlockIIR	Attitude providers for GPS block IIF navigation satellites.
GPSDate	Container for date in GPS form.
GPSOrbitalElements	This interface provides the minimal set of orbital elements needed by the GPSPropagator.
GPSPropagator	This class aims at propagating a GPS orbit from GPSOrbitalElements.
GPSPropagator.Builder	This nested class aims at building a GPSPropagator.
GPSScale	GPS time scale.
GraggBulirschStoerIntegratorBuilder	Builder for GraggBulirschStoerIntegrator.
GravityFieldFactory	Factory used to read gravity field files in several supported formats.
GRGSFormatReader	Reader for the GRGS gravity field format.
GroundAtNightDetector	Detector for ground location being at night.
GroundFieldOfViewDetector	Finder for satellite entry/exit events with respect to a sensor Field Of View attached to an arbitrary frame.
GroundPointing	Base class for ground pointing attitude providers.
GroundStation	Class modeling a ground station that can perform some measurements.
GTODProvider	Greenwich True Of Date Frame, also known as True of Date Rotating frame (TDR) or Greenwich Rotating Coordinate frame (GCR).
GzipFilter	Filter for gzip compressed data.
HansenTesseralLinear	Hansen coefficients K(t,n,s) for t!=0 and n < 0.
HansenThirdBodyLinear	Hansen coefficients K(t,n,s) for t=0 and n > 0.
HansenUtilities	Utilities class.
HansenZonalLinear	Hansen coefficients K(t,n,s) for t=0 and n < 0.
HarmonicParametricAcceleration	This class implements a parametric acceleration with harmonic signed amplitude.
HarrisPriester	This atmosphere model is the realization of the Modified Harris-Priester model.
HelmertTransformation	Transformation class for geodetic systems.
HelmertTransformation.Predefined	Enumerate for predefined Helmert transformations.
HighamHall54IntegratorBuilder	Builder for HighamHall54Integrator.
HolmesFeatherstoneAttractionModel	This class represents the gravitational field of a celestial body.
IAUPole	Interface for IAU pole and prime meridian orientations.
ICGEMFormatReader	Reader for the ICGEM gravity field format.
IERSConventions	Supported IERS conventions.
IERSConventions.NutationCorrectionConverter	Interface for functions converting nutation corrections between δΔψ/δΔε to δX/δY.
ImmutableTimeStampedCache<T extends TimeStamped>	A cache of TimeStamped data that provides concurrency through immutability.
ImpulseManeuver<T extends EventDetector>	Impulse maneuver model.
InertialProvider	This class handles an inertial attitude provider.
IntegratedEphemeris	This class stores sequentially generated orbital parameters for later retrieval.
InterpolatingTransformProvider	Transform provider using thread-safe interpolation on transforms sample.
InterpolationGrid	Interface for interpolation grids.
InterpolationTableLoader	Used to read an interpolation table from a data file.
InterSatDirectViewDetector	Detector for inter-satellites direct view (i.e.
InterSatellitesRange	One-way or two-way range measurements between two satellites.
InterSatellitesRangeBuilder	Builder for InterSatellitesRange measurements.
IodGibbs	Gibbs initial orbit determination.
IodGooding	Gooding angles only initial orbit determination, assuming Keplerian motion.
IodLambert	Lambert initial orbit determination, assuming Keplerian motion.
IonosphericModel	Defines a ionospheric model, used to calculate the path delay imposed to electro-magnetic signals between an orbital satellite and a ground station.
IRNSSScale	IRNSS time scale (also called IRNWT for IRNSS NetWork Time).
IsotropicDrag	This class models isotropic drag effects.
IsotropicRadiationClassicalConvention	This class represents the features of a simplified spacecraft.
IsotropicRadiationCNES95Convention	This class represents the features of a simplified spacecraft.
IsotropicRadiationSingleCoefficient	This class represents the features of a simplified spacecraft.
ITRFVersion	Enumerate for ITRF versions.
ITRFVersion.Converter	Specialized transform provider between ITRF frames.
J2DifferentialEffect	Analytical model for J2 effect.
JacobianPropagatorConverter	Propagator converter using the real Jacobian.
JacobiansMapper	Mapper between two-dimensional Jacobian matrices and one-dimensional additional state arrays.
JacobiPolynomials	Provider of the Jacobi polynomials Plv,w.
JB2008	This is the realization of the Jacchia-Bowman 2008 atmospheric model.
JB2008InputParameters	Interface for solar activity and magnetic activity data.
JPLEphemeridesLoader	Loader for JPL ephemerides binary files (DE 4xx) and similar formats (INPOP 06/08/10).
JPLEphemeridesLoader.EphemerisType	List of supported ephemerides types.
JPLEphemeridesLoader.RawPVProvider	Interface for raw position-velocity retrieval.
KalmanEstimation	Interface for accessing Kalman filter estimations.
KalmanEstimator	Implementation of a Kalman filter to perform orbit determination.
KalmanEstimatorBuilder	Builder for a Kalman filter estimator.
KalmanObserver	Observer for Kalman filter estimations.
KeplerianOrbit	This class handles traditional Keplerian orbital parameters.
KeplerianPropagator	Simple Keplerian orbit propagator.
KeplerianPropagatorBuilder	Builder for Keplerian propagator.
Keyword	Keywords for CCSDS Navigation Data Messages.
KlobucharIonoCoefficientsLoader	Loads Klobuchar-Style ionospheric coefficients a given input stream.
KlobucharIonoModel	Klobuchar ionospheric delay model.
L1Frame	Class to create a L1 centered frame with L1TransformProvider.
L1TransformProvider	L1 Transform provider for a frame on the L1 Lagrange point of two celestial bodies.
L2Frame	Class to create a L2 centered frame with L2TransformProvider.
LatitudeCrossingDetector	Detector for geographic latitude crossing.
LatitudeExtremumDetector	Detector for geographic latitude extremum.
LnsCoefficients	Compute the Lns(γ).
LocalizedException	This interface specified methods implemented by localized exception classes.
LocalOrbitalFrame	Class for frames moving with an orbiting satellite.
LofOffset	Attitude law defined by fixed Roll, Pitch and Yaw angles (in any order) with respect to a local orbital frame.
LofOffsetPointing	This class provides a default attitude provider.
LOFType	Enumerate for different types of Local Orbital Frames.
LongitudeCrossingDetector	Detector for geographic longitude crossing.
LongitudeExtremumDetector	Detector for geographic longitude extremum.
LoveNumbers	Container for Love numbers.
LutherIntegratorBuilder	Builder for LutherIntegrator.
MappingFunction	Interface for mapping functions used in the tropospheric delay computation.
MariniMurrayModel	The Marini-Murray tropospheric delay model for laser ranging.
MarshallSolarActivityFutureEstimation	This class reads and provides solar activity data needed by atmospheric models: F107 solar flux, Ap and Kp indexes.
MarshallSolarActivityFutureEstimation.StrengthLevel	Strength level of activity.
MaxGapInterpolationGrid	Interpolation grid where points obey a maximum time gap.
MeasurementBuilder<T extends ObservedMeasurement<T>>	Interface for generating individual measurements.
MeasurementDecorator	Decorator adding Measurement API to an ObservedMeasurement.
MeasurementType	Enumerate for measurement type.
MendesPavlisModel	The Mendes - Pavlis tropospheric delay model for optical techniques.
MidpointIntegratorBuilder	Builder for MidpointIntegrator.
ModeHandler	Common interface for all propagator mode handlers initialization.
Model	Class defining the process model dynamics to use with a KalmanEstimator.
Month	Enumerate representing a calendar month.
MultiSatStepHandler	This interface is a space-dynamics aware step handler for multi-sat propagation.
NadirPointing	This class handles nadir pointing attitude provider.
NamedData	Container for holding named data that can be filtered.
NamedData.StreamOpener	Interface for lazy-opening a stream.
NegateDetector	An event detector that negates the sign on another event detector's g function.
NetworkCrawler	Provider for data files directly fetched from network.
NewcombOperators	Implementation of the Modified Newcomb Operators.
NewtonianAttraction	Force model for Newtonian central body attraction.
NiellMappingFunctionModel	The Niell Mapping Function model for radio wavelengths.
NodeDetector	Finder for node crossing events.
NormalizedSphericalHarmonicsProvider	Interface used to provide normalized spherical harmonics coefficients.
NormalizedSphericalHarmonicsProvider.NormalizedSphericalHarmonics	The normalized geopotential coefficients at a specific instance in time.
NRLMSISE00	This class implements the mathematical representation of the 2001 Naval Research Laboratory Mass Spectrometer and Incoherent Scatter Radar Exosphere (NRLMSISE-00) of the MSIS® class model.
NRLMSISE00InputParameters	Container for solar activity data, compatible with NRLMSISE-00 atmosphere model.
NumericalPropagator	This class propagates orbits using numerical integration.
NumericalPropagatorBuilder	Builder for numerical propagator.
ObservableSatellite	Class modeling a satellite that can be observed.
ObservationData	Observation Data.
ObservationDataSet	Observation Data set.
ObservationType	Enumerate for all the Observation Types for Rinex 2 and 3.
ObservedMeasurement<T extends ObservedMeasurement<T>>	Interface for measurements used for orbit determination.
OceanLoadDeformationCoefficients	Supported Ocean load Deformation coefficients (Love numbers k'i).
OceanLoading	Modeling of displacement of reference points due to ocean loading.
OceanLoadingCoefficients	Site specific coefficients for ocean loading.
OceanLoadingCoefficientsBLQFactory	Factory for ocean loading coefficients, using Onsala Space Observatory files in BLQ format.
OceanTides	Ocean tides force model.
OceanTidesReader	Reader for ocean tides coefficients.
OceanTidesWave	Container for ocen tides coefficients for one tide wave.
ODEIntegratorBuilder	This interface is the top-level abstraction to build first order integrators for propagators conversion.
ODMFile	The ODMFile (Orbit Data Message) class represents any of the three orbit messages used by the CCSDS, i.e.
ODMMetaData	This class gathers the meta-data present in the Orbital Data Message (ODM).
ODMParser	Base class for all CCSDS Orbit Data Message parsers.
OEMFile	This class stocks all the information of the OEM File parsed by OEMParser.
OEMFile.CovarianceMatrix	The CovarianceMatrix class represents a covariance matrix and its metadata: epoch and frame.
OEMFile.OemSatelliteEphemeris	OEM ephemeris blocks for a single satellite.
OEMParser	A parser for the CCSDS OEM (Orbit Ephemeris Message).
OEMWriter	An OEM Writer class that can take in a general EphemerisFile object and export it as a valid OEM file.
OEMWriter.InterpolationMethod	OEM interpolation method.
OffsetModel	TAI UTC offset model.
OGMFile	This class gathers the general state data present in both OPM and OMM files.
OMMFile	This class gathers the informations present in the Orbital Mean-Elements Message (OMM), and contains methods to generate a CartesianOrbit, a KeplerianOrbit, a SpacecraftState and, eventually, a TLE.
OMMFile.OMMMetaData
OMMParser	A parser for the CCSDS OMM (Orbiter Mean-Elements Message).
OnBoardAntennaInterSatellitesRangeModifier	On-board antenna offset effect on inter-satellites range measurements.
OnBoardAntennaRangeModifier	On-board antenna offset effect on range measurements.
OnBoardAntennaTurnAroundRangeModifier	On-board antenna offset effect on turn around range measurements.
OneAxisEllipsoid	Modeling of a one-axis ellipsoid.
OPMFile	This class gathers the informations present in the Orbital Parameter Message (OPM), and contains methods to generate CartesianOrbit, KeplerianOrbit or SpacecraftState.
OPMFile.Maneuver	Maneuver in an OPM file.
OPMParser	A parser for the CCSDS OPM (Orbit Parameter Message).
Orbit	This class handles orbital parameters.
OrbitType	Enumerate for orbital parameters types.
OrekitConfiguration	Utility class for setting global configuration parameters.
OrekitEphemerisFile	A class for encapsulating Orekit propagators within an EphemerisFile complaint object that makes for easy serialization to external ephemeris formats like OEM.
OrekitEphemerisFile.OrekitEphemerisSegment
OrekitEphemerisFile.OrekitSatelliteEphemeris	Inner class of OrekitEphemerisFile that defines the OrekitEphemerisFile.OrekitSatelliteEphemeris corresponding object for this ephemeris type.
OrekitException	This class is the base class for all specific exceptions thrown by the Orekit classes.
OrekitExceptionWrapper	Deprecated. as of 9.3, this class is not used anymore, as OrekitException is now an unchecked exception
OrekitFixedStepHandler	This interface is a space-dynamics aware fixed size step handler.
OrekitIllegalArgumentException	Extension of IllegalArgumentException with localized message.
OrekitIllegalStateException	Extension of IllegalStateException with localized message.
OrekitInternalError	Extension of Runtime with localized message for internal errors only.
OrekitIOException	Extension of IOException with localized message.
OrekitMessages	Enumeration for localized messages formats.
OrekitMessages.UTF8Control	Control class loading properties in UTF-8 encoding.
OrekitParseException	Extension of ParseException with localized message.
OrekitStepHandler	This interface is a space-dynamics aware step handler.
OrekitStepHandlerMultiplexer	This class gathers several OrekitStepHandler instances into one.
OrekitStepInterpolator	This interface is a space-dynamics aware step interpolator.
OrekitStepNormalizer	This class wraps an object implementing OrekitFixedStepHandler into a OrekitStepHandler.
OrphanFrame	Prototype frame that can be built from leaf to roots and later attached to a tree.
OsculatingToMeanElementsConverter	This class converts osculating orbital elements into mean elements.
OutlierFilter<T extends ObservedMeasurement<T>>	Modifier that sets estimated measurement weight to 0 if residual is too far from expected domain.
ParameterDriver	Class allowing to drive the value of a parameter.
ParameterDriversList	Class managing several parameter drivers, taking care of duplicated names.
ParameterDriversList.DelegatingDriver	Specialized driver delegating to several other managing the same parameter name.
ParameterFunction	Interface representing a scalar function depending on a ParameterDriver.
ParameterObserver	Interface for observing parameters changes.
PartialDerivativesEquations	Set of additional equations computing the partial derivatives of the state (orbit) with respect to initial state and force models parameters.
Phase	Class modeling a phase measurement from a ground station.
PhaseAmbiguityModifier	Class modifying theoretical phase measurement with ambiguity.
PhaseCenterVariationFunction	Model for antennas phase center variations.
PoissonSeries	Class representing a Poisson series for nutation or ephemeris computations.
PoissonSeries.CompiledSeries	This interface represents a fast evaluator for Poisson series.
PoissonSeriesParser	Parser for Poisson series files.
PoleCorrection	Simple container class for pole correction parameters.
PolynomialFunctionMatrix	A quadratic matrix of PolynomialFunction.
PolynomialNutation	Polynomial nutation function.
PolynomialParametricAcceleration	This class implements a parametric acceleration with polynomial signed amplitude.
PolynomialParser	Parser for polynomials in IERS tables.
PolynomialParser.Unit	Unit for the coefficients.
Position	Class modeling a position only measurement.
PositionAngle	Enumerate for true, eccentric and mean position angles.
PositionAngleDetector	Detector for in-orbit position angle.
PositionBuilder	Builder for Position measurements.
PotentialCoefficientsReader	This abstract class represents a Gravitational Potential Coefficients file reader.
Predefined	Predefined frames provided by FramesFactory.
Propagator	This interface provides a way to propagate an orbit at any time.
PropagatorBuilder	This interface is the top-level abstraction to build propagators for conversion.
PropagatorConverter	This interface is the top-level abstraction for propagators conversions.
PropagatorsParallelizer	This class provides a way to propagate simultaneously several orbits.
PV	Class modeling a position-velocity measurement.
PVBuilder	Builder for PV measurements.
PVCoordinates	Simple container for Position/Velocity/Acceleration triplets.
PVCoordinatesProvider	Interface for PV coordinates providers.
QZSSScale	QZSS time scale.
RadiationSensitive	Interface for spacecraft that are sensitive to radiation pressure forces.
Range	Class modeling a range measurement from a ground station.
RangeBuilder	Builder for Range measurements.
RangeIonosphericDelayModifier	Class modifying theoretical range measurement with ionospheric delay.
RangeRate	Class modeling one-way or two-way range rate measurement between two vehicles.
RangeRateBuilder	Builder for RangeRate measurements.
RangeRateIonosphericDelayModifier	Class modifying theoretical range-rate measurement with ionospheric delay.
RangeRateTroposphericDelayModifier	Class modifying theoretical range-rate measurements with tropospheric delay.
RangeTroposphericDelayModifier	Class modifying theoretical range measurement with tropospheric delay.
RawSphericalHarmonicsProvider	Interface used to provide raw spherical harmonics coefficients.
RawSphericalHarmonicsProvider.RawSphericalHarmonics	The raw spherical harmonics at a particular instant.
ReceiverAntenna	GNSS receiver antenna model.
RecordAndContinue<T extends EventDetector>	Handler that will record every time an event occurs and always return EventHandler.Action.CONTINUE.
RecordAndContinue.Event<T>	A single event detected during propagation.
ReferenceEllipsoid	A Reference Ellipsoid for use in geodesy.
Relativity	Post-Newtonian correction force due to general relativity.
RinexHeader	Container for Rinex file header.
RinexLoader	Loader for Rinex measurements files.
SaastamoinenModel	The modified Saastamoinen model.
SatelliteAntenna	GNSS satellite antenna model.
SatelliteAntennaCode	Deprecated. as of 9.3 replaced by SatelliteType
SatelliteSystem	Enumerate for satellite system.
SatelliteType	Enumerate for satellite types.
Scheduler<T extends ObservedMeasurement<T>>	Interface for generating measurements sequences.
SecularAndHarmonic	Class for fitting evolution of osculating orbital parameters.
SEMParser	This class reads SEM almanac files and provides GPS almanacs.
SGP4	This class contains methods to compute propagated coordinates with the SGP4 model.
ShiftingTransformProvider	Transform provider using thread-safe shifts on transforms sample.
SHMFormatReader	Reader for the SHM gravity field format.
ShortPeriodicsInterpolatedCoefficient	Interpolated short periodics coefficients.
ShortPeriodTerms	Additive short period terms contributing to the mean to osculating orbit mapping.
SignSemantic	Enumerate for the semantic of the g function sign during measurements generation.
SimpleExponentialAtmosphere	Simple exponential atmospheric model.
SimpleTimeStampedTableParser<T extends TimeStamped>	Parser for simple tables containing time stamped data.
SimpleTimeStampedTableParser.RowConverter<S extends TimeStamped>	Interface for converting a table row into time-stamped data.
SmallManeuverAnalyticalModel	Analytical model for small maneuvers.
SolarRadiationPressure	Solar radiation pressure force model.
SolidTides	Solid tides force model.
SP3File	Represents a parsed SP3 orbit file.
SP3File.SP3Coordinate	A single record of position clock and possibly derivatives in an SP3 file.
SP3File.SP3FileType	File type indicator.
SP3File.SP3OrbitType	Orbit type indicator.
SP3File.TimeSystem	Time system used throughout this SP3 file.
SP3Parser	A parser for the SP3 orbit file format.
SpacecraftState	This class is the representation of a complete state holding orbit, attitude and mass information at a given date.
SphericalHarmonicsProvider	Interface used to provide spherical harmonics coefficients.
SphericalPolygonsSetTransferObject	Transfer object for serializing SphericalPolygonsSet instances.
SpinStabilized	This class handles a spin stabilized attitude provider.
StateFunction	Interface representing a vector function depending on SpacecraftState.
StateJacobian	Interface representing the Jacobian of a vector function depending on SpacecraftState.
StateMapper	This class maps between raw double elements and SpacecraftState instances.
StationDisplacement	Interface for computing reference points displacement.
StopOnDecreasing<T extends EventDetector>	Handle a detection event and choose what to do next.
StopOnEvent<T extends EventDetector>	Event handler which will always return stop as a state.
StopOnIncreasing<T extends EventDetector>	Handle a detection event and choose what to do next.
StreamingOemWriter	A writer for OEM files.
TabulatedLofOffset	This class handles an attitude provider interpolating from a predefined table containing offsets from a Local Orbital Frame.
TabulatedProvider	This class handles an attitude provider interpolating from a predefined table.
TAIScale	International Atomic Time.
TAIUTCDatFilesLoader	Loader for UTC-TAI extracted from tai-utc.dat file from USNO.
TargetPointing	This class handles target pointing attitude provider.
TCBScale	Barycentric Coordinate Time.
TCGScale	Geocentric Coordinate Time.
TDBScale	Barycentric Dynamic Time.
TDMFile	This class stocks all the information of the CCSDS Tracking Data Message file parsed by TDMParser or TDMXMLParser.
TDMFile.Observation	The Observation class contains the data from an observation line.
TDMFile.ObservationsBlock	The Observations Block class contain metadata and the list of observation data lines.
TDMFile.TDMMetaData	The TDMMetadata class gathers the meta-data present in the Tracking Data Message (TDM).
TDMParser	Class for CCSDS Tracking Data Message parsers.
TDMParser.TDMFileFormat	Enumerate for the format.
ThirdBodyAttraction	Third body attraction force model.
ThreeEighthesIntegratorBuilder	Builder for ThreeEighthesIntegrator.
TidalDisplacement	Modeling of displacement of reference points due to tidal effects.
Tide	Class representing a tide.
TideSystem	Enumerate for tie systems.
TideSystemProvider	Interface used to provide tide systems.
Tile	Simple data structure for a quadrilateral tile shape on a body surface.
TileAiming	Interface defining the aiming direction of tiles.
TimeComponents	Class representing a time within the day broken up as hour, minute and second components.
TimeDerivativesEquations	Interface summing up the contribution of several forces into orbit and mass derivatives.
TimeInterpolable<T extends TimeInterpolable<T>>	This interface represents objects that can be interpolated in time.
TimeScalarFunction	This interface represents a scalar function of time.
TimeScale	Interface for time scales.
TimeScalesFactory	Factory for predefined time scales.
TimeShiftable<T extends TimeShiftable<T>>	This interface represents objects that can be shifted in time.
TimeSpanMap<T>	Container for objects that apply to spans of time.
TimeSpanMap.Span<S>	Holder for one time span.
TimeSpanMap.Transition<S>	Class holding transition times.
TimeStamped	This interface represents objects that have a AbsoluteDate date attached to them.
TimeStampedAngularCoordinates	time-stamped version of AngularCoordinates.
TimeStampedCache<T extends TimeStamped>	Interface for a data structure that can provide concurrent access to TimeStamped data surrounding a given date.
TimeStampedCacheException	This class is the base class for all specific exceptions thrown by during the GenericTimeStampedCache.
TimeStampedFieldAngularCoordinates<T extends org.hipparchus.RealFieldElement<T>>	time-stamped version of FieldAngularCoordinates.
TimeStampedFieldPVCoordinates<T extends org.hipparchus.RealFieldElement<T>>	time-stamped version of FieldPVCoordinates.
TimeStampedGenerator<T extends TimeStamped>	Generator to use for creating entries in time stamped caches.
TimeStampedPVCoordinates	time-stamped version of PVCoordinates.
TimeVectorFunction	This interface represents a multi-valued function of time.
TLE	This class is a container for a single set of TLE data.
TLEPropagator	This class provides elements to propagate TLE's.
TLEPropagatorBuilder	Builder for TLEPropagator.
TLESeries	Deprecated. as of 9.0, this class is deprecated without replacement.
TopocentricFrame	Topocentric frame.
Transform	Transformation class in three dimensional space.
TransformGenerator	Generator to use transforms in GenericTimeStampedCache.
TransformProvider	Interface for Transform providers.
TransformProviderUtils	Utility for Transform providers.
TroposphericDSConverter	Converter for states and parameters arrays.
TroposphericModel	Defines a tropospheric model, used to calculate the path delay imposed to electro-magnetic signals between an orbital satellite and a ground station.
TTScale	Terrestrial Time as defined by IAU(1991) recommendation IV.
TurnAroundRange	Class modeling a turn-around range measurement using a master ground station and a slave ground station.
TurnAroundRangeBuilder	Builder for TurnAroundRange measurements.
TurnAroundRangeIonosphericDelayModifier	Class modifying theoretical TurnAroundRange measurement with ionospheric delay.
TurnAroundRangeTroposphericDelayModifier	Class modifying theoretical turn-around TurnAroundRange measurement with tropospheric delay.
UnivariateProcessNoise	Provider for a temporal evolution of the process noise matrix.
UnixCompressFilter	Filter for Unix compressed data.
UnnormalizedSphericalHarmonicsProvider	Interface used to provide un-normalized spherical harmonics coefficients.
UnnormalizedSphericalHarmonicsProvider.UnnormalizedSphericalHarmonics	Un-normalized spherical harmonics coefficients evaluated at a specific instant.
UpdatableFrame	Frame whose transform from its parent can be updated.
UpperBounds	Utility class to compute upper bounds for truncation algorithms.
UT1Scale	Universal Time 1.
UTCScale	Coordinated Universal Time.
UTCTAIBulletinAFilesLoader	Loader for UTC-TAI extracted from bulletin A files.
UTCTAIHistoryFilesLoader	Loader for UTC versus TAI history files.
UTCTAIOffsetsLoader	Interface for loading UTC-TAI offsets data files.
VersionedITRF	Specific version of International Terrestrial Reference Frame.
ViennaModelCoefficientsLoader	Loads Vienna tropospheric coefficients a given input stream.
ViennaModelType	Enumerate for Vienna tropospheric model 1 and 3.
ViennaOneModel	The Vienna1 tropospheric delay model for radio techniques.
ViennaThreeModel	The Vienna3 tropospheric delay model for radio techniques.
WeatherModel	Defines a surface meteorology model that can be used to compute the different weather parameters (pressure, temperature, ...).
YawCompensation	This class handles yaw compensation attitude provider.
YawSteering	This class handles yaw steering law.
YUMAParser	This class reads Yuma almanac files and provides GPS almanacs.
ZipJarCrawler	Helper class for loading data files from a zip/jar archive.