Spacecraft-Centered Celestial Coordinates:
a right ascension S declination
Body-Fixed Coordinates for Spinning Spacecraft:
azimuth X elevation or 9 coelevation (measured from the spin axis)
No standard definitions apply for body-fixed coordinates for three-axis stabilized spacecraft. Jl""
Roll, Pitch, Yaw:
Pitch axis, P, toward negative orbit normal Vj^ Roll axis, R, such that R = PxY Unfortunately, the roll, pitch, and yaw axes do not have generally accepted meanings in spaceflight. Usage depends on the context.
roll angle, measured about R pitch angle, measured about P L yaw angle, measured about Y
Positive roll, pitch, and yaw are right-handed rotations about their respective axes.
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