STK .a to CesiumJS attitude

Hello
I would like to visualise a satellite’s position and attitude during an orbit.
I have ephemeris and attitude data in the form of STK output.
I’m taking the t,x,y,z from .e as position and t,x,y,z,w from .a as orientation quarterions
The position seems correct but the attitude is wrong. Could it be a frame of reference or coordinate system issue?

Hi, Please check my reply on this similar post.

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