The acceleration magnitude on the orbital path can be calculated as:
t = 2 * pi * r / v
omega = 2 * pi / t = v / r
acceleration = omega² * r = v² / r
Where t is the orbital period, r is the orbital radius, v is the orbital velocity, omega is the angular velocity.
The acceleration direction is from the SAT position towards the earth center.
To calculate the acceleration towards the UE, this is projected on the direction from the SAT to the UE.
Thomas Schlichter
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