T-Minus 110 Seconds and Counting
Mission control specialists at the Cape and in Houston monitored every conceivable instrument on the Shuttle itself and on the ground equipment that made space flight possible.
A cavernous room full of technicians checked and double checked and triple checked fuel, temperature, guidance, computers sys-tems, backup systems, relays, switches, communications links, telemetry, gyros, the astronauts’ physiology, life support systems, power supplies...everything had a remote control monitor.
“The liquid hydrogen replenish has been terminated, LSU pressuri-zation to flight level now under way. Vehicle is now isolated from ground loading equipment.”