The reference frame fixed to the surface
of the Earth.
| Name |
Dimension |
Type |
Description |
| Time |
DateFormat |
Real Number |
Time. |
| Sigma Xd |
Rate |
Real Number |
Square root of the fourth diagonal component of the
covariance matrix. |
| Sigma Yd |
Rate |
Real Number |
Square root of the fifth diagonal component of the
covariance matrix. |
| Sigma Zd |
Rate |
Real Number |
Square root of the sixth diagonal component of the
covariance matrix. |
| Correlation XdYd |
Unitless |
Real Number |
XdYd correlation coefficient of the covariance
matrix. |
| Correlation XdZd |
Unitless |
Real Number |
XdZd correlation coefficient of the covariance
matrix. |
| Correlation YdZd |
Unitless |
Real Number |
YdZd correlation coefficient of the covariance
matrix. |
| VelCovMtx XX |
Rate Squared |
Real Number |
XX Component of the Velocity Covariance
Matrix. |
| VelCovMtx YX |
Rate Squared |
Real Number |
YX Component of the Velocity Covariance
Matrix. |
| VelCovMtx YY |
Rate Squared |
Real Number |
YY Component of the Velocity Covariance
Matrix. |
| VelCovMtx ZX |
Rate Squared |
Real Number |
ZX Component of the Velocity Covariance
Matrix. |
| VelCovMtx ZY |
Rate Squared |
Real Number |
ZY Component of the Velocity Covariance
Matrix. |
| VelCovMtx ZZ |
Rate Squared |
Real Number |
ZZ Component of the Velocity Covariance
Matrix. |
| YPR321 yaw |
AngleUnit |
Real Number |
Yaw angle between the two sets of axes. Defines
rotation about the z-axis of the reference set, which occurs first
when using 321 (or YPR) sequence in YPR angles representation. |
| YPR321 pitch |
AngleUnit |
Real Number |
Pitch angle between the two sets of axes. Defines
rotation about the y-axis of the reference set, which occurs second
when using 321 (or YPR) sequence in YPR angles representation. |
| YPR321 roll |
AngleUnit |
Real Number |
Roll angle between the two sets of axes. Defines
rotation about the x-axis of the reference set, which occurs third
when using 321 (or YPR) sequence in YPR angles representation. |
| Euler323
precession |
AngleUnit |
Real Number |
Precession angle between the two sets of axes.
Defines rotation about the z-axis of the reference set, which
occurs first when using 323 sequence in Euler angles
representation. |
| Euler323
nutation |
AngleUnit |
Real Number |
Nutation angle between the two sets of axes.
Defines rotation about the y-axis of the set rotated through
precession, which occurs second when using 323 sequence in Euler
angles representation. |
| Euler323 spin |
AngleUnit |
Real Number |
Spin angle between the two sets of axes. Defines
rotation about the z-axis of the set rotated through precession and
nutation, which occurs third when using 323 sequence in Euler
angles representation. |
| q1 |
Unitless |
Real Number |
First element of quaternion (and of its vector
part) representing orientation between the two sets of axes. |
| q2 |
Unitless |
Real Number |
Second element of quaternion (and of its vector
part) representing orientation between the two sets of axes. |
| q3 |
Unitless |
Real Number |
Third element of quaternion (and of its vector
part) representing orientation between the two sets of axes. |
| q4 |
Unitless |
Real Number |
Fourth element of quaternion (its scalar part)
representing orientation between the two sets of axes. |
| wx |
AngleRateUnit |
Real Number |
First component of angular velocity vector between
the two sets of axes. Represents projection of angular velocity
vector onto x-axis of the selected set. |
| wy |
AngleRateUnit |
Real Number |
Second component of angular velocity vector between
the two sets of axes. Represents projection of angular velocity
vector onto y-axis of the selected set. |
| wz |
AngleRateUnit |
Real Number |
Third component of angular velocity vector between
the two sets of axes. Represents projection of angular velocity
vector onto z-axis of the selected set. |
| w mag |
AngleRateUnit |
Real Number |
Magnitude of angular velocity vector between the
two sets of axes. Represents relative speed of rotation between the
two sets of axes. |
| RightAscension
of w |
AngleUnit |
Real Number |
Right ascension of angular velocity vector between
the two sets of axes. Represents the angle between the x-axis of
the selected set and projection of the angular velocity vector onto
the xy-plane of the selected set. The angle is measured
counterclockwise about the z-axis of the selected set. |
| Declination of w |
AngleUnit |
Real Number |
Declination of angular velocity vector between the
two sets of axes. Represents the angle between the angular velocity
vector and its projection onto the xy-plane of the selected set.
The angle is positive when the angular velocity vector is directed
toward positive z-axis of the selected set. |
| Eigen-Angle |
AngleUnit |
Real Number |
Angle of eigen-rotation between the two sets of
axes, i.e. a single axis rotation that aligns the two sets of
axes. |
| Eigen-Axis x |
Unitless |
Real Number |
First component of a unit vector representing the
axis of eigen-rotation between the two sets of axes. Defines
instantaneous projection of the eigen-axis onto x-axis of either of
the two sets of axes. |
| Eigen-Axis y |
Unitless |
Real Number |
Second component of a unit vector representing the
axis of eigen-rotation between the two sets of axes. Defines
instantaneous projection of the eigen-axis onto y-axis of either of
the two sets of axes. |
| Eigen-Axis z |
Unitless |
Real Number |
Third component of a unit vector representing the
axis of eigen-rotation between the two sets of axes. Defines
instantaneous projection of the eigen-axis onto z-axis of either of
the two sets of axes. |