The Tactical Command Center, previously Launch Control, was the ground control center for the Central Protectorate space program. Under its former name it supervised the Orbital 1 mission. After the apparent failure of the mission, the space program changed focus from one of contacting the "Sky Ship", to destroying it. It was renamed the Tactical Command Center to reflect its new objective.
When Gotana-Retz returned fifty years after the launch of Orbital 1, he attempted to contact Launch Control and was informed of the change. (VOY: "Blink of an Eye")