Scenario: Earth Fixed Frame: Orientation Difference
The angle representing the difference in orientation between the J2000 and ICRF axes at the given time.
Name |
Dimension |
Type |
Description |
Time |
DateFormat |
Real Number |
Time. |
Angle between frames |
AngleUnit |
Real Number |
The angle between the J2000 and ICRF frames. |
Angle between X axes |
AngleUnit |
Real Number |
The angle between the J2000 X axis and the ICRF X axis. |
Angle between Y axes |
AngleUnit |
Real Number |
The angle between the J2000 Y axis and the ICRF Y axis. |
Angle between Z axes |
AngleUnit |
Real Number |
The angle between the J2000 Z axis and the ICRF Z axis. |
Euler 321 Yaw |
AngleUnit |
Real Number |
The first rotation (about the 3 axis, ie. Z axis) in a 321 Euler sequence that rotates the ICRF frame into the J2000 frame. |
Euler 321 Pitch |
AngleUnit |
Real Number |
The second rotation (about the new 2 axis, ie. new Y axis) in a 321 Euler sequence that rotates the ICRF frame into the J2000 frame. |
Euler 321 Roll |
AngleUnit |
Real Number |
The third rotation (about the newest 1 axis, ie. newest Z axis) in a 321 Euler sequence that rotates the ICRF frame into the J2000 frame. |
Distance between frames at surface |
DistanceUnit |
Real Number |
The value of the Earth's equatorial distance multiplied by the angle between the J2000 and ICRF frame. |
Distance between frames at GPS |
DistanceUnit |
Real Number |
The value of the typical GPS radius distance multiplied by the angle between the J2000 and ICRF frame. |
Distance between frames at GEO |
DistanceUnit |
Real Number |
The value of the typical GEO radius distance multiplied by the angle between the J2000 and ICRF frame. |