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[b]'Go' for Tanking Operations for Artemis I[/b] The Artemis I mission management team met today (Nov. 15) to review the status of operations and gave the "go" to proceed toward tanking operations. Weather conditions are 80% favorable for the two-hour launch window which opens at 1:04 a.m. EST, with the primary concern being the potential for thick cumlous clouds. Launch director Charlie Blackwell-Thompson subsequently gave the "go" to officially begin propellant loading operations. During tanking operations, teams will load the Space Launch System (SLS) rocket with liquid oxygen (LOX) and liquid hydrogen (LH2), beginning with the rocket's core stage and then the interim cryogenic propulsion stage. Tanking begins with chilling down the LOX and LH2 lines for the core stage. In sequential fashion, LOX and LH2 will flow into the rocket's core stage tank and be topped off and replenished as some of the cryogenic propellant boils off. The process involves slowly filling the core stage with propellant to thermally condition the tank until temperature and pressure are stable before beginning fast fill operations, which is when the tank is filled at a quicker pump speed.
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