This tutorial provides a step-by-step example of the preparation of a set of OBs with GRAVITY at the ESO-VLTI. The specifics of this tutorial pertain to the preparation of OBs for Period 109 onward.

Wait, where are the GlowScript tutorials 1-7? Yes, I am sort of skipping around. I put the first GlowScript tutorials on a different server, but I figure it's best just to keep everything in one place ...