X-Ray Sources: Sco X-1
In order to accurately point any flying vehicle, we define three axes within the
spacecraft, similar to length, width and depth measurements we use on the Earth. For
example, in an airplane, the roll axis is defined as being parallel to the fuselage, the pitch
axis is defined through the wings so the plane can be oriented nose "up" or "down", and
the yaw axis is defined about the vertical so that the nose can be oriented "left" or
"right". Similar definitions are used for rockets as well.
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