The red crew has departed the launch pad and is now outside the designated danger area surrounding the pad. The technicians entered the zero deck, or base, of the mobile launcher and tightened several bolts to troubleshoot a valve used to replenish the core stage with liquid hydrogen which showed a leak with readings above …
Technicians who are part of the “red crew” of personnel specially trained to conduct operations at the launch pad during cryogenic loading operations have arrived at the launch pad. They will enter the zero deck or base of the mobile launcher to tighten connections to ensure a hydrogen valve used to replenish the core stage …
Engineers have paused flowing liquid hydrogen into the core stage because of a small leak on a hydrogen valve inside of the mobile launcher. A team of personnel called a red crew is being assembled to go to the pad to make sure all of the connections and valves remain tight. The valve is located …
Teams are in fast fill operations for the interim cryogenic propulsion stage’s (ICPS) liquid hydrogen and liquid oxygen tanks. The ICPS is the upper stage of the Space Launch System rocket responsible for giving the Orion spacecraft the big push it needs in space to head toward the Moon. Teams continue to work toward a …
Engineers have completed filling the core stage liquid oxygen tank and have moved into the replenish phase. Teams are beginning operations to load liquid hydrogen into the rocket’s interim cryogenic propulsion stage.
Engineers have completed filling the core stage liquid hydrogen tank, and have moved into the replenish phase. Core stage liquid oxygen fast fill is still underway. Although the LH2 tank is larger than the LOX tank, LOX is denser than LH2 and takes longer to load. Teams continue to work toward a two-hour launch window …
Fast fill operations are underway for the Space Launch System rocket’s core stage liquid oxygen and liquid hydrogen tanks.
Expedition 68 Flight Engineers Josh Cassada and Frank Rubio of NASA concluded their spacewalk at 4:25 p.m. EST after 7 hours and 11 minutes in preparation for upcoming solar array installation. Cassada and Rubio completed the majority of the primary objectives for today to assemble a mounting bracket on the starboard side of the station’s …
Teams have begun the slow fill phase to load liquid hydrogen (LH2) and liquid oxygen (LOX) into the Space Launch System rocket’s core stage. Once LH2 and LOX slow fill is complete, teams will transition to fast fill operations. Below are the as scheduled times for slow and fast fill operations: 4:24 p.m.: Core stage …
USOS Extravehicular Activity (EVA) #81 (1B IROSA Prep): Today, Josh Cassada (EV1) and Frank Rubio (EV2) performed the 1B ISS Roll Out Solar Array (IROSA) Prep EVA. Hatch opening occurred at 8:13 AM CT. The main goal of this EVA was to route cables on both the 3A and 1B Mod kits and install the …
