a bit confused with regards to the whole term aspect angle in a 3D planar case. Most examples that I searched online involved either a 2D plane or a stationary object.
Let say the black circle denotes a ball that flies in a projectile motion as shown. In this case, is the aspect angle always 180 degrees since the angle between the compass direction that the slope/ball faces and what the radar faces is 180 degrees? (i.e. radar is seeing the ball coming directly towards it in a projectile motion?
In this case, will the RCS remain constant? I've seen some example of RCS vs Aspect Angle graphs. While I know RCS is only determined by other factors, does having the same aspect angle in this case denotes the same RCS throughout the whole duration of the projectile motion?
Also, case #2 (to double check on my aspect angle concept):
Viewing from the top, let say another ball is thrown nearer to the radar as depicted in the projectile motion (from top to bottom). In this case, if the ball is somewhere in the middle of the motion, will that be the aspect angle between the radar and the ball that I have drawn out?