| Name | Description |
|---|---|
| Active Constraints | Lists the "from" STK object name and type to which the active constraint belongs. |
| All Constraints | Descriptions of all constraints available for this object and its parent object. |
| Angles | Used to report angle and its time rate of change rate. Angle must be defined in the Vector Geometry Tool. |
| Apparent Cartesian Position | The apparent position of the planet, expressed in Cartesian components, as a function of time. The apparent position is computed with respect to the scenario's central body. The apparent position can be requested in a variety of coordinate systems. The available coordinate systems depend on the scenario's central body. Nominally, the systems Fixed, Inertial, J2000, TrueOfDate, and MeanOfDate are supported, although some central bodies (notably the Earth and Sun) have more. The following lists the systems available for Earth. |
| Apparent Cartesian Velocity | The apparent velocity of the planet, expressed in Cartesian components, as a function of time. The apparent velocity is computed with respect to the scenario's central body as observed in the requested frame. The apparent position can be requested in a variety of coordinate systems. The available coordinate systems depend on the scenario's central body. Nominally, the systems Fixed, Inertial, J2000, TrueOfDate, and MeanOfDate are supported, although some central bodies (notably the Earth and Sun) have more. The following lists the systems available for Earth. |
| Apparent Heliocentric Cartesian Position | The apparent position of the planet, expressed in Cartesian components in the Sun's inertial coordinate system (i.e., Sun centered J2000 axes), as a function of time. |
| Apparent Heliocentric Cartesian Velocity | The apparent velocity of the planet, expressed in Cartesian components in the Sun's inertial coordinate system (i.e., Sun centered J2000 axes), as a function of time. The velocity is computed as observed in the Sun's inertial coordinate system. |
| Apparent Heliocentric Classical Elements | Classical osculating orbital elements, sometimes referred to as Keplerian elements, for the apparent position and velocity of a planet, computed with respect to the Sun's inertial coordinate system (i.e., Sun centered J2000 Axes). |
| Apparent LLA State | The apparent position and velocity of the object, expressed in LLA elements, as a function of time. The coordinate system is the Fixed frame of the scenario's central body. The apparent position is computed with respect to the scenario's central body; the rates are computed as observed in the scenario central body Fixed frame. |
| Apparent LLR State | The apparent position and velocity of the object, expressed in LLR elements, as a function of time. The apparent position is computed with respect to the scenario's central body; the rates are computed as observed in the requested coordinate system from the scenario central body. The ephemeris can be requested in a variety of coordinate systems. The available coordinate systems depend on the scenario's central body. Nominally, the systems Fixed, Inertial, J2000, TrueOfDate, and MeanOfDate are supported, although some central bodies (notably the Earth and Sun) have more. The following lists the systems available for Earth. |
| Available Times | The time intervals over which the object is available to participate in access computations. |
| Axes Choose Axes | Used to report orientation and angular velocity of the selected set of axes relative to a specified reference set of axes. Both sets of axes must be defined in the Vector Geometry Tool. |
| Cartesian Position | The position of the object, expressed in Cartesian components, as a function of time. The position can be requested in a variety of coordinate systems. The available coordinate systems depend on the object's central body. Nominally, the systems Fixed, Inertial, J2000, TrueOfDate, and MeanOfDate are supported, although some central bodies (notably the Earth and Sun) have more. The following lists the systems available for Earth. |
| Cartesian Velocity | The velocity of the object as observed from the requested coordinate system, expressed in Cartesian components of that system, as a function of time. The velocity can be requested in a variety of coordinate systems. The available coordinate systems depend on the object's central body. Nominally, the systems Fixed, Inertial, J2000, TrueOfDate, and MeanOfDate are supported, although some central bodies (notably the Earth and Sun) have more. The following lists the systems available for Earth. |
| Condition | Condition placing bounds on a specific scalar. |
| Condition Set | Defines a set of conditions for when the elapsed time falls within specified time limits |
| Crdn Available Times | Time intervals for which a Vector Geometry Tool component for the object is available. |
| Data Provider Detail | Data Provider Detail - hierarchically list the available data providers and all of the included elements |
| Data Provider Summary | Data Provider Summary - a list of all available data providers |
| Heliocentric Cartesian Position | The true position of the planet, expressed in Cartesian components, relative to the sun. The components are expressed in the Sun's inertial coordinate system (i.e., Sun centered J2000 Axes). |
| Heliocentric Cartesian Velocity | The true velocity of the planet, expressed in Cartesian components, relative to the sun. The components are expressed in the Sun's inertial coordinate system (i.e., Sun centered J2000 Axes). |
| Heliocentric Classical Elements | Classical osculating orbital elements, sometimes referred to as Keplerian elements, for the true position and velocity of a planet, computed with respect to the specified coordinate system. |
| LLA State | The ephemeris of the object, expressed in LLA elements, as a function of time. The coordinate system is the Fixed frame of the object's central body. |
| LLR State | The ephemeris of the object, expressed in LLR elements, as a function of time. The ephemeris can be requested in a variety of coordinate systems. The available coordinate systems depend on the object's central body. Nominally, the systems Fixed, Inertial, J2000, TrueOfDate, and MeanOfDate are supported, although some central bodies (notably the Earth and Sun) have more. The following lists the systems available for Earth. |
| Parameter Set Attitude | The Attitude parameter set defines orientation of one set of Axes from VGT relative to another. This parameter includes the following sub-sets: Quaternion, Euler, DCM and AngleAxis. Quaternion includes four quaternion elements Q1, Q2, Q3, Q4. Euler includes all 12 sequences where within each there are three angles A, B, C. DCM includes all nine elements of the direction cosine matrix; e.g., XX, XY, etc. AngleAxis includes X, Y, Z components of the unit axis of rotation and RotationAngle. |
| Parameter Set Orbit | The Orbit parameter set defines orbital element sets for a Point from VGT orbiting the specified Central Body in the specified coordinate System. Element sets include: Cartesian, Classical, Delaunay, Spherical and Equinoctial (Posigrade and Retrograde). |
| Parameter Set Trajectory | The Trajectory parameter set defines the position of a specified Point from VGT with respect to the reference System. This parameter set includes the following sub-sets: Cartesian, Cylindrical and Spherical. Cartesian includes X, Y, Z and Radius. Cylindrical includes Azimuth, Height, Radius. Spherical includes Azimuth, Elevation, CoElevation, and Radius. |
| Planes Choose System | Used to report the selected plane and its velocity in a specified reference coordinate system. Both plane and coordinate system must be defined in the Vector Geometry Tool. |
| Planes(Fixed) | Used to report the selected plane and its velocity in the Sun fixed coordinate system. The plane must be defined in the Vector Geometry Tool. |
| Planes(ICRF) | Used to report the selected plane and its velocity in the object's central body ICRF coordinate system. The plane must be defined in the Vector Geometry Tool. |
| Planes(Inertial) | Used to report the selected plane and its velocity in the Sun inertial coordinate system. The plane must be defined in the Vector Geometry Tool. |
| Planes(J2000) | Used to report the selected plane and its velocity in the object's central body J2000 coordinate system. The plane must be defined in the Vector Geometry Tool. |
| Points Choose Plane | Used to report projection of the selected point and its velocity on a specified reference plane. Both point and plane must be defined in the Vector Geometry Tool. |
| Points Choose System | Used to report the selected point and its velocity in a specified reference coordinate system. Both point and coordinate system must be defined in the Vector Geometry Tool. |
| Points(Fixed) | Used to report the selected point and its velocity in the Sun fixed coordinate system. The point must be defined in the Vector Geometry Tool. |
| Points(ICRF) | Used to report the selected point and its velocity in the Sun ICRF axes. The vector must be defined in the Vector Geometry Tool. |
| Points(Inertial) | Used to report the selected point and its velocity in the Sun inertial coordinate system. The point must be defined in the Vector Geometry Tool. |
| Points(J2000) | Used to report the selected point and its velocity in the Sun J2000 coordinate system. The point must be defined in the Vector Geometry Tool. |
| Scalar Calculations | Calculation component that produces scalar time-varying calculations. |
| User Supplied Data | Values of custom data associated with the object. |
| Vector Choose Axes | Used to report the selected vector and its derivative in a specified reference set of axes. Both vector and axes must be defined in the Vector Geometry Tool. |
| Vector Choose Plane | Used to report projection of the selected vector and its derivative on a specified reference plane. Both vector and plane must be defined in the Vector Geometry Tool. |
| Vectors(Fixed) | Used to report the selected vector and its derivative based on the Sun fixed axes. The vector must be defined in the Vector Geometry Tool. |
| Vectors(ICRF) | Used to report the selected vector and its derivative in ICRF axes. The vector must be defined in the Vector Geometry Tool. |
| Vectors(Inertial) | Used to report the selected vector and its derivative based on the Sun inertial axes. The vector must be defined in the Vector Geometry Tool. |
| Vectors(J2000) | Used to report the selected vector and its derivative in J2000 axes. The vector must be defined in the Vector Geometry Tool. |
STK Programming Interface 11.0.1