Preparations are underway to perform a preliminary swing test of the Core Stage Inter-tank Umbilical (CSITU) on the mobile launcher in High Bay 3 of the Vehicle Assembly Building on Feb. 22, 2019, at NASA's Kennedy Space Center in Florida. The CSITU is a swing-arm umbilical that will connect to the Space Launch System core stage inter-tank. It will provide conditioned air, pressurized gases and power and data connection to the core stage. The Exploration Ground Systems Program is overseeing installation of the umbilicals.