The SLS rocket from the Artemis 1 mission is back on the launch pad

Monday 6 June, 04:10 GMT, Rocket Space Launch System (SLS) Leave their VAB or vehicle assembly building hangar to the launch pad.spent 10 hours rocket to scheduled launch Artemis 1, to reach the destination.The launcher now carries the boat on top Orion Again waiting for officials to fill up the tank.

Artemis 1 will be the first mission of the program NASA’s Artemis. So the space agency is very careful about the different steps it goes through before launch. Last April, NASA decided to suspend dress rehearsals for the launch to allow maintenance work after three failed attempts to supply fuel.

Credit NASA/Ben Smegelsky

The first exit of the SLS rocket from the launch pad took place on March 17, 2022. “Wet Rehearsal” then start with 1Uh April. However, due to some technical issues it was not possible to perform all tests. So officials decided to return the rocket to the hangar on April 25. Technicians were then tasked with finding the cause of the problem and expediting the implementation of planned improvements.

Problems and Solutions

The first rehearsal for Artemis 1 faced many problems.During the first refueling test, the team had problems with refueling ICPS or Interim Cryogenic Propulsion Stage SLS rocket. Loose flange bolts caused a hydrogen leak in the piping connecting the mobile platform to the ICPS. Investigations revealed that the joints of these bolts had degraded over time.

The team also carried out repairs to fix Cryogenic fuel supply issues. The helium check valve was replaced on the ICPS and changes had to be made to the block responsible for the quick disconnect from the platform during launch.

In addition to repairs to the rocket, the launch pad has also been improved. For example, the company that provides the infrastructure to manage nitrogen supply has doubled the capacity of the unit.she added The second method of producing gas.

next rehearsal

According to NASA, the next rehearsal for Artemis 1 will be June 19, will last 48 hours. During the simulation, the rocket will go through all stages, Final countdown from fuel supply to ignition.

During rehearsals, Kennedy Space Center ground crews will work with many other entities to complete the loadout 2.65 million liters of fuel in the rocket.These entities include members of the Control Center Johnson Space Center In Houston, engineers Marshall Space Flight Center in Huntsville, Alabama and Space Force Eastern Range in Cape Canaveral, Florida.

Rehearsals will be based on a series of countdowns, pauses and cancellations, and simulations of different scenarios. This will test the ground crew’s ability to load and unload fuel under different launch conditions.

After a few days of rehearsals, the Rockets will return to the VAB to be able to Analyze test data and determine airworthinessbut also Prepare the launcher for the real launch.

Currently, NASA officials have not given a firm date for the launch of Artemis 1.However, the launch may occur in end of august If all goes well during the rehearsal.

resource: space net

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