See: Description
Interface  Description 

CentralBodyInertialAxes.ComputeOrientationParameters.Function 
A functional interface for the containing delegate type.

ComputeIauOrientationParameters.Function 
A functional interface for the containing delegate type.

IJplDEWithMoonLibrationModel 
A
JplDE which can return a libration model for the Moon. 
Class  Description 

AtmosphericDragForce 
A simple model of atmospheric drag on a body according to its coefficient of drag and reference crosssectional area.

AtmosphericRefractionModel 
Defines a refraction model.

CentralBodiesFacet 
A
CalculationContextFacet that holds and provides information about
central bodies such as planets, moons, the sun, etc. 
CentralBody 
A central body, such as a planet, star, asteroid, libration point, etc.

CentralBodyInertialAxes 
This class provides the Axes based on the STK definition of a
CentralBody 's Inertial Axes. 
CentralBodyInertialAxes.ComputeOrientationParameters 
The definition of a function which computes a set of orientation parameters.

CentralBodyIntersection 
A utility for checking for orbit intersection with a planet given twobody dynamics.

ClassicalEquationOfEquinoxes 
Represents the classical equation of the equinox as defined in the Explanatory Supplement
to the Astronomical Almanac.

ComputeIauOrientationParameters 
The definition of a function which computes a set of orientation parameters.

ConstantForce 
Represents a constant force.

ConstantSolarGeophysicalData 
Represents the solar radiation and geomagnetic flux indices as constant values.

ConstantTorque 
Represents a constant torque.

ConstantWindModel 
Represents a constant wind speed and direction.

ContinuousThrustForceModel 
Represents a force generated by continuous thrust.

CssiSolarGeophysicalData 
Represents the solar radiation and geomagnetic flux indices as they vary over time.

EarthCentralBody 
The planet Earth.

EarthGravitationalModel1996 
Provides the semimajor axis, gravitational parameter, and 2nd, 3rd, 4th, and 5th zonal harmonic coefficients
for the Earth Gravitational Model of 1996 (EGM96) according to NASA Technical Publication 1998206861.

EarthGravitationalModel2008 
Provides the semimajor axis, gravitational parameter, and 2nd, 3rd, 4th, and 5th zonal harmonic coefficients
for the Earth Gravitational Model of 2008 (EGM2008) according to the Journal of Geophysical Research, Vol 117, Issue B4, April 2012.

EarthOrientationParameters 
Specifies Earth polar motion coordinates and the difference between UT1 and UTC.

EarthOrientationParametersData 
Specifies Earth Orientation Parameters at a specific instant.

EarthOrientationParametersFile 
Contains static methods to read EOP data in the Celestrak EOP data file format which is documented at
https://celestrak.com/SpaceData/EOPformat.asp.

EarthOrientationParametersReadOptions 
Specifies options for reading an
EarthOrientationParametersFile . 
EffectiveRadiusAtmosphericRefractionModel 
The effective radius model approximates the effects of refraction by assuming that the refractive index decreases linearly with altitude.

EquationOfEquinoxes 
Represents the equation of the equinox (also called the "nutation in right ascension" according
to the Explanatory Supplement to the Astronomical Almanac) which defines the right ascension of
the mean equinox with respect to the true equator and equinox.

ForceEvaluator 
Base class for evaluators created by a
ForceModel to compute the force. 
ForceModel 
Represents a Newtonian force which can be used to specify the equations
of motion for a mass body located by a
PropagationNewtonianPoint . 
GravityGradientTorque 
Represents the gravitygradient torque effects on a satellite parameterized by
a
PropagationNewtonianPoint and a PropagationEulerianAxes . 
Iau1976Precession 
Provides Earth precession information according to the IAU 1976 model

Iau1980Nutation 
Provides Earth Nutation information according to the IAU 1980 model

Iau2000Orientation 
This is a collection of the orientation information available for central bodies.

Iau2006Orientation 
This is a collection of the orientation information available for central bodies.

Iau2006XysData 
A table of IAU2006 XYS data that is used to evaluate the transformation between the International Celestial
Reference Frame (ICRF) and the International Terrestrial Reference Frame (ITRF).

Iau2009Orientation 
This is a collection of the orientation information available for central bodies.

Iau2015Orientation 
This is a collection of the orientation information available for central bodies.

IauOrientationAxes 
The Axes representing the orientation of a
CentralBody as represented by the data
from the IAU/IAG Working Group reports on rotational elements expressed in the
InertialFrame (get / set )Axes (get / set ) of the SolarSystemBarycenter . 
IauOrientationParameters 
A structure containing the orientation data computed at a particular time.

Iers2003SolidTideModel 
A highfidelity, timevarying Earth solid tide model that is based on the IERS Conventions (2003) technical report 32.

IersTechnicalNote21 
Provides Earth orientation parameters according to the IERS Technical Note 21.

IersTechnicalNote36RelativisticCorrectionForce 
A
KindOfForce.NEWTONIAN_SPECIFIC_FORCE that models the first order correction to the acceleration of a space object about a CentralBody (get / set ). 
ItuRP834Version4AtmosphericRefractionModel 
ITUR P.8344 is the ITU recommendation concerning "Effects of tropospheric refraction on radio wave propagation."
The recommendation provides an analytical formula for the refracted elevation at the ground.

JplDE 
The common base for classes for loading and accessing JPL DE files.

JplDE200 
Represents JPL DE200 ephemeris data.

JplDE403 
Represents JPL DE403 ephemeris data.

JplDE405 
Represents JPL DE405 ephemeris data.

JplDE421 
Represents JPL DE421 ephemeris data.

JplDE430 
Represents JPL DE430 ephemeris data.

JplDEFile 
Provides raw access to a JPL DE file.

JplDEFileEvaluator 
The class returned by
JplDEFile.getEvaluator(JplDEDataIndex,EvaluatorGroup) to allow calculation of
timevarying information in the JPL DE file. 
LibrationModel 
A model of the libration of a central body.

LinkRefracted  
MoonCentralBody 
The moon of the Earth.

Nutation 
Holds nutation angles in longitude and in obliquity.

NutationModel 
A model of the nutation of a central body.

OffAxisTorque 
Represents the torque effects of a thruster that is not aligned with the center of mass of a
a vehicle parameterized by a
PropagationEulerianAxes . 
PermanentSolidTideModel 
A constant solid tide model that can add permanent tides to a tidefree model to form a zerotide model.

Precession 
Holds precession angles.

PrecessionModel 
A model of the precession of a central body.

ReactionWheelTorque 
Represents the torque effects of a reaction wheel implemented on
a spacecraft parameterized by a
PropagationEulerianAxes . 
ResultantForceBuilder 
A tool used by
ForceModel objects to add their RoleOfForce.PRINCIPAL and
RoleOfForce.PERTURBATION forces to a list of forces in a resultant force. 
ResultantTorqueBuilder 
A tool used by
TorqueModel objects to add to a list of torques in a resultant torque. 
ScalarAtmosphericDensity 
Abstract base class for all atmospheric models used to calculate density.

ScalarDensityJacchia1970 
Calculates atmospheric density according to the Jacchia 1970 model.

ScalarDensityJacchiaRoberts 
Calculates atmospheric density according to the JacchiaRoberts model.

ScalarDensityMsis2000 
Calculates atmospheric density according to the NRLMSISE 2000 model.

ScalarDensityMsis86 
Calculates atmospheric density according to the MSIS 1986 model.

ScalarDensityMsis90 
Calculates atmospheric density according to the MSIS 1990 model.

ScalarOccultation 
A class that provides evaluators for percentage of occultation/eclipse at a position,
as well as
EclipseType . 
ScalarOccultationCylindrical 
Provides evaluators for percentage of occultation/eclipse at a position,
as well as
EclipseType using the cylindrical shadow model. 
ScalarOccultationDualCone 
Provides evaluators for percentage of occultation/eclipse at a position,
as well as
EclipseType using the dual cone shadow model. 
ScalarOccultationNoShadow 
This is a
ScalarOccultation for use with SimpleSolarRadiationForce . 
ScalarOccultationRegulatedDualCone 
Provides evaluators for percentage of occultation/eclipse at a position,
as well as
EclipseType using the dual cone shadow model. 
Simon1994PlanetaryPositions 
Provides
Point instances representing the positions of the planets computed using the
equations described in
Simon J.L., Bretagnon P., Chapront J., ChaprontTouze M., Francou G., Laskar J.,
1994, A&A 282, 663683. 
SimpleSolarRadiationForce 
Represents the acceleration from pressure exerted on the given reflective area at the target position.

SimpleSolidTideModel 
A simplified, timevarying solid tide model.

SolarGeophysicalData 
This class holds information on the F10.7 solar flux and the kp and ap geomagnetic flux.

SolarRadiationBoundaryMitigation 
Corrects for eclipse crossings during satellite propagation.

SolarSystemBarycenter 
The barycenter of a solar system.

SolidTideModel 
A solid tide model that could be permanent or timevarying.

SpaceControlFacilityAtmosphericRefractionModel 
The Satellite Control Facility (SCF) refraction model is based upon the paper "Refraction Correction, 'RC, Refraction Addition, 'RA, Milestone 4, Model 15.3A" by A.

SphericalHarmonicGravity 
Represents the acceleration (force for a given unit mass) at a particular point
from the gravitational effects of the distribution of the Earth's mass.

SphericalHarmonicGravityCoefficients 
Contains the coefficient data for a spherical harmonic gravity model.

SphericalHarmonicGravityField 
The immutable class that describes the chosen subset and configuration
of spherical harmonic gravitational model.

SphericalHarmonicGravityModel 
Contains the coefficient data for a gravity model, either specified upon construction or
read in from a file.

SphericalHarmonicGravitySecularVariations 
A linear model for the secular variations of a gravity model.

SunCentralBody 
The star at the center of our solar system.

ThirdBodyGravity 
Represents the gravitational acceleration created by bodies other than the central body around
which a target object is orbiting.

ThirdBodyGravity.ThirdBodyInfo 
A combination of the position and gravitational parameter for a perturbing gravitational body.

TimeVaryingSolidTideModel 
A solid tide model that must vary with time.

TorqueEvaluator 
Base class for evaluators created by a
TorqueModel to compute the torque. 
TorqueModel 
Represents a torque which can be used to specify the equations
of rotational motion for a rigidbody parameterized by a
PropagationEulerianAxes . 
TwoBodyGravity 
Represents the acceleration from a simple two body gravity model.

USStandardAtmosphere1976 
Provides scalars that calculate values using the U.S.

USStandardAtmosphere1976.Result 
The result of the calculation.

VectorRefractedDisplacement 
A vector representing the refracted displacement from an initial point to a final point as
both points move over time.

WindModel 
Defines a wind model for an atmosphere.

WorldGeodeticSystem1984 
Provides the set of four World Geodetic System of 1984, WGS84 (G873), defining constants according
to Table 3.1 on page 35 of the National Imagery and Mapping Agency Technical Report TR8350.2,
Third Edition, Amendment 1, 3 January 2000.

Enum  Description 

CoefficientOfReflectivityType 
Defines the type of Reflectivity Coefficient used in initializing
SimpleSolarRadiationForce . 
EclipseType 
Enumerates the different types of shadowing that can occur during an eclipse.

JplDECentralBody 
The central bodies referenced in a JPL DE file.

JplDEDataIndex 
Indices of the data available in a JPL DE file.

KindOfForce 
Indicates the properties of a given force to be used when
distinguishing the behavior of forces when defining equations of motion.

RadiationVectorType 
Defines the type of vector to use between the target and the illuminating body in context of scalar occultation.

RoleOfForce 
An indication of how important a given force is in the overall composite force
acting on a given object.

SphericalHarmonicsTideType  Deprecated
The SphericalHarmonicsTideType enumeration is deprecated due to the addition of SolidTideModel classes.
