NASA will launch a rocket carrying an unmanned spacecraft into lunar orbit in late September if Fuel spill test passed.
NASA plans to launch the Artemis 1 mission on September 23 or 27, during which the Space Launch System (SLS) superrocket will carry the Orion capsule on an unmanned flight to lunar orbit. But on the evening of September 12, the NASĄ announced that the date of September 23 was no longer possible. They are targeting a September 27 liftoff and an October 2 backup launch date.
Artemis Complex 1 on launch pad 39B.
Artemis Complex 1 on launch pad 39B. (Photo: NASA)
Initially, NASA planned to launch the mission on August 29 but had to postpone it due to an error in the temperature reading in one of the four RS-25 engines in the SLS core stage. The team in charge quickly found the problem with the faulty sensor and prepared to relaunch the SLS and Orion combination on September 3. However, a liquid hydrogen fuel leak forced NASA to continue to reschedule the launch date.
A leak error occurs in the room “quick break” connecting the SLS core stage to the rocket’s mobile launch tower propellant pipeline. Artemis 1 engineers replaced two sealing bolts around this part last week and completed repair work related to the issue over the weekend.
Currently, NASA is preparing for a test involving pouring very cold propellant into the SLS to see if the leak has been repaired or not. They were planning to conduct the test on September 17, but it now has to be postponed until September 21. According to NASA, the new launch date will allow more time to prepare for launch, while allowing officials to ensure the team has enough time to rest and replenish the cryogenic propellant.
The Artemis 1 complex remains on Launch Pad 39B at the Kennedy Space Center (KSC) in Florida, but may need to be moved to the Vehicle Assembly Building (VAB). The US Space Force, the unit that oversees rocket launches, has issued a 25-day license for the Flight Termination System (FTS) and time is running out.
NASA has requested a license renewal for the FTS, a system designed to destroy rockets if they stray off course. If the request is refused, the vehicle will have to return to the VAB, the only place capable of carrying out the necessary tests to request a license renewal. The next two launch days for Artemis 1 are very close to SpaceX’s Crew-5 astronaut mission, which launches to the International Space Station from KSC Launch Pad 39A on October 3.
Article source: VnExpress
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