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## Homework Statement

I was given a question to transform the LA system to the CI system. (Local astronomic and Conventional Inertial)

## Homework Equations

r^LA=P1*R2(90-Ф)*R3(Λ)*R2(-xp)*R1(-yp)*R3(GAST)*N*P*r^CL

## The Attempt at a Solution

I attempted this on matlab but I used the wrong rotation and got the question wrong so I was wondering if anyone knew how to convert LA -> CI