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Launch controllers have reached the replenish phase of liquid hydrogen loading operations for the interim cryogenic propulsion stage of the Space Launch System rocket and are continuing operations to load liquid oxygen into the upper stage. Teams are moving into operations to conduct a pre-pressurization test, in which engineers will bring the core stage liquid …
The Space Launch System’s core stage liquid hydrogen tank is now full and is being replenished as some of the supercold propellant boils off. Since resuming liquid hydrogen fast fill operations, the rate of the hydrogen leak at the tail service mast umbilical quick disconnect has remained within allowable rates. The core stage liquid oxygen …
Fast fill continues for the Space Launch System (SLS) rocket’s core stage liquid hydrogen (LH2) tank at a reduced pressure as teams monitor the area where the hydrogen leak was detected. Fast fill is complete for the core stage liquid oxygen (LOX) tank and engineers have completed the engine bleed test, which flows supercold LH2 …
Teams have resumed the flow of liquid hydrogen into the core stage after warming up the quick disconnect, or interface where the fuel feed line connects to the rocket, to reseat the connection as part of their troubleshooting plan to fast fill the propellant.
Launch controllers have detected a hydrogen leak in a cavity in the tail service mast umbilical and have stopped flowing the propellant to the rocket while they troubleshoot the issue. Engineers will warm up the quick disconnect, or interface where the fuel feed line connects to the rocket, to attempt to reseat it.
Fast fill is underway for the Space Launch System (SLS) rocket’s core stage liquid oxygen (LOX) tank. Next, teams will transition from slow fill to fast fill for the liquid hydrogen (LH2) tank and initiate, or “kick start,” the engine bleed, which will begin flowing supercold LH2 to start cooling the four RS-25 engines down …
After chilling the lines for liquid oxygen (LOX), teams have begun the slow fill phase to load LOX into the Space Launch System (SLS) rocket’s core stage and have started chilling down the transfer line for the liquid hydrogen (LH2). Once LOX slow fill is complete, teams will transition to fast fill operations. Once the …
Artemis Launch Director Charlie Blackwell-Thompson has given the “go” to officially begin loading propellants into the Space Launch System rocket as part of today’s Artemis I cryogenic demonstration test. Weather remains favorable for the test. Tanking operations will begin with chilldown of the core stage liquid oxygen transfer line. NASA TV coverage is underway.
As the countdown continued Tuesday toward the cryogenic demonstration test, teams conducted final closeouts at the pad and performed other preparations for the test. Work will continue through the night, and all non-essential personnel will leave Launch Pad 39B by 3:40 a.m. EDT Wednesday. The launch director is expected to give a “go” to begin …
NASA remains on track for an Artemis I cryogenic demonstration test on Wednesday, Sept. 21. In the days since the previous launch attempt, teams have analyzed the seals that were replaced on an interface for the liquid hydrogen fuel line between the Space Launch System (SLS) rocket and the mobile launcher and adjusted procedures for …
