Miami, September 19 (EFE) .- NASA engineers will check next Wednesday whether repairs to two leaks of liquid hydrogen fuel from the unmanned mission Artemis I were in good condition after two launch attempts were aborted, they said. This Monday the engineers are in charge of the program.
In a teleconference, experts in charge of the mission noted that Wednesday’s key test, known as the “cryogenic demonstration test,” will test whether the two seals repaired are designed to plug the liquid hydrogen leaks that they blocked in the first two. launch attempt
During Wednesday’s test, the launch controller will load supercold liquid oxygen and liquid hydrogen into the main stage and intermediate stage of the Space Launch System (SLS) rocket, the largest ever built.
Confirmed by NASA, the mission team aims to launch the test at 7:15 a.m. Eastern Time (11:15 GMT) on Wednesday, and it can be followed live on the space agency’s website.
Meanwhile, the SLS and Orion spacecraft still attached to its nose continue today to await testing on the launch pad at Florida’s Kennedy Space Center.
The cryogenic test focuses on loading supercold liquid oxygen into the rocket’s core and upper stages, which they will do Wednesday in a “soft” manner to minimize pressure spikes and thermal spikes seen during previous launch attempts. , according to Jeremy Parsons, deputy manager for NASA’s Earth System Exploration Program at Kennedy Space Center.
“It’s going to be very slow and steady,” Parsons said, “to gradually introduce some thermal differences and try to minimize heat and pressure shock.”
The mission team, led by Artemis mission director Mike Sarafin at a press conference today, expects to “go ahead” to begin loading the rocket with liquid hydrogen around 7 a.m. Wednesday.
If all goes well, the test is expected to end by 3:00 pm local time (7:00 PM GMT) that day, Parsons said.
ARTEMIS What am I looking for?
Artemis I aims to test the most powerful rocket ever built, the SLS, with which NASA plans to launch manned missions to the Moon and eventually Mars.
So far, the Artemis 1 mission has a scheduled launch window of “no earlier than Tuesday, September 27,” NASA confirmed today.
The launch will take place from Ramp 39B at NASA’s Kennedy Space Center in Cape Canaveral, Florida.
The 70-minute launch window will open at 11:37 a.m. (3:37 p.m. GMT) on September 27 and, if all goes according to plan, the Orion spacecraft will return to Earth on November 5.
As for the alternative launch date, NASA is October 2, as reported on Monday.
In such a case, the Orion spacecraft will return on November 11 with a 109-minute launch window that opens at 2:52 a.m. (18:52 GMT).
The first launch attempt of Artemis I took place on August 29, but was aborted due to failure of one of the 4 RS-25 engines on the powerful SLS rocket, which is 98 meters high. It was suspended after a second attempt on September 3, due to a liquid hydrogen leak.
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