After a month, NASA’s Artemis 1 flight vehicle came back to the Vehicle Assembly Building (VAB) at the Kennedy Space Center (KSC). It came at the Launch Pad 39B. It attempted to finish the final test before its first launch. The Wet Dress Rehearsal (WDR) is a countdown demonstration test. They do it with an integrated Orion spacecraft and Space Launch System (SLS) rocket for Artemis 1. Then, the propellant loads in it. They attempted three times in April. But, there was a hydrogen leak on the Mobile Launcher and unreliable gaseous nitrogen (GN2) service. This finally pulled the plug on staying at the launch pad.
Wet Dress Rehearsal
The space agency has been attempting a key “wet dress rehearsal” test. Unfortunately, it was unsuccessful. So they dubbed it because it involves loading liquid propellant. The procedure consists of many launch operations. This includes a final countdown to within ten seconds before blastoff, but without actually firing the engines. But the teams of NASA teams have encountered several technical issues. These include a leak involving flammable liquid hydrogen, a faulty valve that prevents fueling of the upper stage, and running low on the supply of nitrogen that is used to purge oxygen from the rocket before tanking operations, for safety reasons.
The rocket is 322 feet (98 meters) tall and the fixed Orion crew capsule is on the top. It will begin its slow journey back from Kennedy Space Center’s Launch Complex 39B to the vehicle assembly building on April 26, and they will repair it there. The question about what this means for the earliest opportunity to launch the Artemis-1 test flight to the Moon and back came. The senior official Tom Whitmeyer replied that he thinks the early June window would be challenging.
Delay in the launching
Previously, NASA decided to begin a test flight in May. Subsequently, there are several launch windows in July and in August. These depend on factors like the relative positions of the Earth and Moon, and how long the rocket has to fly in an eclipse. This is because it needs the Sun for to get power and for thermal regulation. It can impact other project launches like the Artemis-2 if there is any further delay. Artemis-2 is the first uncrewed test flight around the Moon, and in the mission Artemis-3, to see the first woman and first person of color touch down on the lunar south pole. NASA is aiming to create a permanent presence on the Moon. They can use it as a proving ground for technologies that are necessary for a Mars mission planned for sometime in the 2030s.
1. Where did Artemis-1 go?
NASA’s Artemis 1 flight vehicle went back to the Vehicle Assembly Building (VAB) at the Kennedy Space Center (KSC) after a month at Launch Pad 39B attempting to complete the final test before its first launch.
2. What is Wet Dress Rehearsal?
The Wet Dress Rehearsal (WDR), a countdown demonstration test with the integrated Orion spacecraft and Space Launch System (SLS) rocket for Artemis 1 loaded with propellant, had three attempts in April, but a hydrogen leak on the Mobile Launcher and unreliable gaseous nitrogen (GN2) service finally pulled the plug on staying at the launch pad.
3. What other materials are used in vehicle operations?
Gaseous nitrogen (GN2) is used extensively to purge inert enclosed volumes of the SLS rocket before, during, and after propellant loading of the vehicle. “Nitrogen is used for umbilical purges as well as it’s used in other parts of the vehicle operations.
For more details and updates visit themarketactivity.com.