The 70-minute launch window opens at 11:37 a.m. ET, with the Space Launch System rocket and Orion spacecraft still on the launch pad at Kennedy Space Center in Florida.
Only 20% of launch weather conditions were favorable due to concerns over weather systems forming in the Caribbean. Due to the tropical storm’s current track, the storm is on track to affect Cuba and Florida early next week.
Mike Bolger, manager of NASA’s Exploration Ground Systems Program, said the Artemis team will use the latest data to inform decisions given the uncertainties in storm tracks, intensities and arrival times.
The Artemis team is closely monitoring the weather and will make a decision on Saturday.
Launch constraints require that the Artemis I mission not fly in rain. According to the Space Force, launch constraints are designed to avoid natural and rocket-induced lightning strikes on in-flight rockets that could damage the rocket and endanger public safety.
Rocket-induced lightning forms when a large rocket passes through a sufficiently strong atmospheric electric field, so even clouds that don’t produce natural lightning can still produce rocket-induced lightning, according to the Space Force.
If the rocket stack needs to be returned to the Kennedy Space Center vehicle assembly building, this process can take several days.
The Rocket Stack stays on the pad and can withstand winds up to 85 miles per hour (74.1 knots). Bolger says it can handle sustained winds of less than 46 miles per hour (40 knots) if the chimney needs to be rolled back into the building.
Evaluation of important data
Meanwhile, the Artemis team is encouraged after a “really successful tanking test,” and “the rocket looks good for future launch attempts,” said NASA’s Marshall Space Flight in Huntsville, Alabama. said John Blevins, SLS Chief Engineer at the Center.
A critical fueling test for the Megamoon rocket achieved all objectives on Wednesday despite two hydrogen leaks.
The purpose of the cryogenic demonstration was to test the replaced seals and to use the updated “friendlier and gentler” loading procedures for cryogenic propellants that rockets experience on launch day.
NASA engineers detected a liquid hydrogen leak during testing that has “the same characteristics” as the leak that hampered the Sept. 3 launch attempt. However, their troubleshooting efforts allowed the team to manage the leak.
The team was able to completely fill the core stage with liquid oxygen and liquid hydrogen. Also before launch he tuned the four engines and also completed his tests of engine bleeds to lower temperatures. (The mission team aborted the first Artemis I launch attempt on August 29, primarily due to a sensor failure that occurred during bleeding.)
A detected hydrogen leak in the 4-inch quick disconnect line for engine bleed exceeded the 4% threshold during pre-pressurization testing. This quick disconnect line carries the liquid hydrogen out of the engine after it passes through the engine and is cooled. However, the leakage rate naturally decreased.
Additionally, the Artemis team has received approval from the Space Force for a September 27th launch trial and an October 2nd backup date.
The Space Force oversees all rocket launches from the East Coast of the United States, including NASA’s Florida launch site, an area known as the Eastern Range. Firing range personnel are tasked with ensuring that no persons or property are endangered by attempted launches.
After receiving detailed data from NASA, the Space Force announced a waiver of the launch date.
The first missions of the Artemis program are the Artemis II and Artemis III missions, scheduled for 2024 and 2025 respectively, intended to land a diverse crew of astronauts in unexplored regions of the Moon. Start phase of NASA’s space exploration. And finally deliver a manned mission to Mars.