Planet: Vectors(J2000): Earth(True)

Vector that locates Earth center with respect to the object's center.

Name Dimension Type Description
Time DateFormat Real Number Time.
x DistanceUnit Real Number The X component of the position vector.
y DistanceUnit Real Number The Y component of the position vector.
z DistanceUnit Real Number The Z component of the position vector.
Magnitude DistanceUnit Real Number Magnitude of the displacement vector that locates selected point in the reference coordinate system, i.e. distance of the selected point from the origin of the reference coordinate system.
x/Magnitude Unitless Real Number First component of the unit vector along the displacement vector that locates selected point in the reference coordinate system. Defines projection of the unit vector onto the x-axis of the reference coordinate system.
y/Magnitude Unitless Real Number Second component of the unit vector along the displacement vector that locates selected point in the reference coordinate system. Defines projection of the unit vector onto the y-axis of the reference coordinate system.
z/Magnitude Unitless Real Number Third component of the unit vector along the displacement vector that locates selected point in the reference coordinate system. Defines projection of the unit vector onto the z-axis of the reference coordinate system.
RightAscension LongitudeUnit Real Number Right ascension of the displacement vector that locates selected point in the reference coordinate system, Represents the angle between the x-axis of the reference coordinate system and projection of the displacement vector onto the xy-plane of the reference coordinate system. The angle is measured counterclockwise about the z-axis of the reference coordinate system.
Declination LatitudeUnit Real Number Declination of the displacement vector that locates selected point in the reference coordinate system, Represents the angle between the displacement vector and its projection onto the xy-plane of the reference coordinate system. The angle is positive when the displacement vector is directed toward positive z-axis of the reference coordinate system.
Co-Declination AngleUnit Real Number Co-Declination of the displacement vector that locates selected point in the reference coordinate system, Represents the angle between the displacement vector and z-axis of the reference coordinate system.
NegativeDeclination AngleUnit Real Number Negative declination of the displacement vector that locates selected point in the reference coordinate system, Represents the angle between the displacement vector and its projection onto the xy-plane of the reference coordinate system. The angle is positive for vectors directed toward negative z-axis of the reference coordinate system.
DirectionAngle x AngleUnit Real Number Angle between the displacement vector that locates selected point in the reference coordinate system and the x-axis of the reference coordinate system.
DirectionAngle y AngleUnit Real Number Angle between the displacement vector that locates selected point in the reference coordinate system and the y-axis of the reference coordinate system.
DirectionAngle z AngleUnit Real Number Angle between the displacement vector that locates selected point in the reference coordinate system and the z-axis of the reference coordinate system.
Derivative x Rate Real Number First component of the derivative vector, where the vector is defined as the time rate of change of the selected vector in the reference set of axes. Defines projection of the derivative vector onto the x-axis of the reference set.
Derivative y Rate Real Number Second component of the derivative vector, where the vector is defined as the time rate of change of the selected vector in the reference set of axes. Defines projection of the derivative vector onto the y-axis of the reference set.
Derivative z Rate Real Number Third component of the derivative vector, where the vector is defined as the time rate of change of the selected vector in the reference set of axes. Defines projection of the derivative vector onto the z-axis of the reference set.
Derivative Magnitude Rate Real Number Magnitude of the derivative vector, where the vector is defined as the time rate of change of the selected vector in the reference set of axes.

STK Programming Interface 11.0.1