The crawler's maximum speed during the 4.2-mile journey was less than 1 mph. The crawler transporter began carrying Discovery out of Kennedy's Vehicle Assembly Building at 12:45 p.m. EDT Friday on top of a giant vehicle known as the crawler transporter. The Space Shuttle Discovery stands at its launch pad at NASA's Kennedy Space Center, Fla. Technicians will open the payload bay doors on the orbiter this afternoon and the payload will be transferred into the payload bay on Tuesday. The payload arrived at the pad last week. The test will ensure the engine hydraulics are working properly. Liquid hydrogen and liquid oxygen system leak checks are scheduled for this afternoon. Today, the launch team at the pad began preparing for the flight readiness test of the space shuttle main engines. Later that evening, the rotating service structure was moved back around the vehicle to protect it from potential damage and the elements while at the pad. Technicians performed a "hot fire" test of the auxiliary power units on Saturday to ensure they are properly functioning. The team continues with other activities including the orbiter weather protection system's activation and the completion of validations of the sound suppression The orbiter payload bay doors were opened Tuesday in preparation for the payloads to be installed today. The system provides the fuel for the forward reaction control system and the orbiter maneuvering system pods. The distribution system will be loaded with hydrogen and oxygen next week. Technicians also are preparing for the gaseous and liquid hydrogen and oxygen leak checks of the power reactant storage distribution system. The test ensures the engine hydraulics are properly working. ![]() Tuesday, the launch team conducted the flight readiness test of the space shuttle main engines, as well as the liquid hydrogen and liquid oxygen system leak checks. The external tank camera test was successfully completed, and the lens cap has been reinstalled until launch. Space Shuttle Discovery remains at Launch Pad 39B, and technicians continue performing system testing while the vehicle is powered. Other payloads include two cargo carriers which contain heat shield tile samples, a spare pump module and a replacement mobile transporter reel assembly. Module Leonardo, which will carry food, clothing, spare parts and research equipment to the International Space Station. ![]() Discovery's payloads include the Italian-built logistics The orbiter payloads were installed in Discovery's payload bay on Wednesday. 1 and 3 connections and leak checks were completed, with No. Technicians continue performing system testing on Space Shuttle Discovery while the vehicle is powered at Launch Pad 39B. ![]() Reaction control system quick disconnect mates and interface leakįollowing payload installation into the payload bay last week, the payload bay and payload changeout room doors were closed on Friday. Reaction control system and the orbital maneuvering system pods. Thursday morning, workers will begin prelaunch propellant loading of the monomethyl hydrazine and nitrogen tetroxide for the forward Connections and leak checks ofĪuxiliary power units No. Over the holiday weekend, technicians performed no significant processing work at the launch pad. On Monday, the payload bay doors will be opened for payload testing and sensor installation in the Orbiter Boom Sensor System. The loading of hypergolic fuel into the solid rocket booster hydraulic power units is scheduled for next week. Testing of the reaction jet driver - electrical control system for the reaction control system jets - was successfully completed. Discovery was powered up to support the prelaunch loading this week of hypergolic propellants into the forward and aft reaction control system and the orbital maneuvering system pods.įuel loading for the orbiter's auxiliary power units is scheduled for the weekend.
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