NASA to conduct Artemis I Moon Mission wet dress rehearsal test on June 20
NASA to conduct Artemis I Moon Mission wet dress rehearsal test on June 20
NASA plans to test the Artemis I rocket in preparation for its first trip, which will take it to the Moon. The tests will be held at the Kennedy Space Center in Florida on June 20.
Launch teams will practise loading propellant into the rocket's tanks and conducting a full launch countdown during the test. The teams will also drain the tanks and run through the launch schedules and procedures.
The test, also known as a "wet dress rehearsal," is essentially a dry run of the complete process of a rocket launching and departing Earth's orbit without the vehicle ever leaving the launchpad.
The Artemis I Rocket has returned to Launch Pad 39B, according to a recent NASA blog entry. On June 6, the rocket was launched from the Vehicle Assembly Building (VAB) to the launch pad for a wet dress rehearsal test.
On NASA Television's media channel, the NASA app, and the NASA website, interested users will be able to watch the rehearsal live, along with live commentary.
What happens during the test?
Teams will begin the test, which will last around two days, by activating the launch facilities and formally starting the countdown process. The Launch Control Center crew at Kennedy will then communicate with NASA's Mission Control Center in Houston, as well as the Space Force Eastern Range and the SLS Engineering Support Center at NASA's Marshall Space Flight Center in Huntsville, Alabama.
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Launch controllers, as well as various rocket and spacecraft systems and ground support equipment, will be powered on and tested.
"Teams will then load more than 700,000 gallons of cryogenic, or extremely cold, propellants onto the rocket at the launch pad on the mobile launcher, following the specific timeline they will utilise on launch day." Every element of the countdown will be practised, including weather briefings, pre-planned countdown holds, propellant conditioning and replenishment as needed, and validation checks."
"When launch controllers reach the point right before the rocket's RS-25 engines ignite on launch day during the wet dress rehearsal, they will recycle back to the T-10 minute mark, then resume the countdown after a hold." To show stopping a launch and draining the propellants from the rocket, the crew will intentionally pause the countdown about 10 seconds before the simulated liftoff. If a technical or weather issue emerges during or prior to the countdown, launch controllers may decide not to proceed with the launch, therefore showing the ability to remove propellants will ensure teams are prepared for multiple launch day situations," the post noted.
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