The next launch window for Artemis I, the Space Launch System rocket and Orion spacecraft's first combined flight test beyond the Moon, and the dates for a cryogenic demonstration test have been modified by NASA. NASA has modified its proposal for a launch opportunity on September 27 and will undertake the demonstration test no earlier than Wednesday, September 21. A potential backup launch window on October 2 is also being considered.

The revised dates were chosen after giving various logistical issues significant thought. These include the added benefit of having more time to be ready for the launch and, in turn, more time to get ready for the cryogenic demonstration test. Additionally, managers can use these data to make sure teams get enough rest and have time to restock their cryogenic propellant supplies.

On Friday, September 2, 2022, at NASA's Kennedy Space Center in Florida, the Orion spacecraft is pictured atop the Space Launch System (SLS) rocket at Launch Pad 39B as launch preparations get underway. NASA and Bill Ingalls

Additionally, NASA and SpaceX continue to aim for 12:45 p.m. or later. On Monday, October 3, at 9:45 a.m. PDT, the organization's Crew-5 mission to the International Space Station will lift off (ISS). The future commercial crew launch is being planned concurrently with Artemis I, and both launch schedules will be monitored over the ensuing weeks. To identify any potential effects, NASA and SpaceX will analyze the Artemis I and Crew-5 prelaunch processing milestones. After a brief handover aboard the space station with Crew-5, the agency will continue to organize for Crew-4's homecoming.

Teams from Artemis I finished fixing the hydrogen leak over the weekend. On the quick disconnect for the liquid hydrogen fuel supply line, where two seals were replaced last week, this included reattaching the ground- and rocket-side plates.

Before testing again during the cryogenic tanking demonstration, engineering teams will undertake tests this week at ambient temperatures to make sure there is a tight link between the two plates. They will also start getting ready for the exam.

Launch controllers will inject super-cold liquid oxygen and liquid hydrogen into the SLS rocket's core stage and interim cryogenic propulsion stage during the demonstration. Teams will be able to verify that the hydrogen leak has been fixed, assess revised propellant loading techniques intended to lessen thermal and pressure-related stress on the system, carry out a kick-start bleed test, and assess pre-pressurization techniques during the demonstration.

As necessary, NASA is supplying more information and data while still adhering to the Eastern Range's review procedure for the agency's request to extend the present flight termination system testing requirements. In parallel, should the request be granted, NASA is continuing to make plans for the cryogenic demonstration test and prospective launch options.

The 70-minute launch window begins on September 27 at 11:37 a.m. landing on November 5 at 8:37 a.m. PDT (EDT)

109-minute launch window opens on October 2 at 2:52 p.m. arriving on November 11 at 11:52 a.m. PDT, EDT

By NASA 

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