--STORY RELATED--
This achievement is obtained on the second run-through of the observation tower (Chapter 2 Part 2). You will first need to get the Satellite part from Dr. Meadows' car, then return to the tower to install it. Once you have installed the part, she will send you to the coolant tanks at the bottom on the hill, here there will be a switch which needs to flipped.
Once the switch has been flipped the achievement should unlock.