Credit: NASA/Johns Hopkins University Applied Physics Laboratory
Once the spacecraft arrived at NASA Goddard Space Flight Center, preparations began for a series of pre-launch checks, including spin-balance tests to check the balance and alignment of the twin observatories.
Each time the observatories change locations between the test chambers and clean rooms at NASA GSFC, all the cables used to power up and test the observatories must be moved with them. Technicians must individually test each cable before they're reconnected to the spacecraft.
