Sentinel V SC and RT Operation Manual
September
2017
EAR-Controlled Technology Subject to Restrictions Contained on the Cover Page.
Page 217
Figure 98.
Sentinel V Real-Time Coordinate Transformation
The importance of the ship axis is that the attitude angles (pitch, roll, and heading) measure the orienta-
tion of the ship axes relative to the earth axes, regardless of up/down orientation. The sense of internal
sensors Tilt 1 (pitch) and Tilt 2 (roll) is positive for counterclockwise tilts respectively about the S and F
axes, using the right-hand rule (see Figure 99).
Figure 99.
Sentinel V Real-Time Pitch and Roll
Angle of the Sentinel V Real-Time
Sign
Beam 3 higher than Beam 4
Positive Pitch
Beam 1 higher than Beam 2
Positive Roll
