SCIENCE + TECHNOLOGY

Artemis I launch team is ready for another ‘try’ on Saturday

Sep 2, 2022, 7:00 AM
NASA's next-generation moon rocket, the Space Launch System (SLS) , with its Orion crew capsule on ...
NASA's next-generation moon rocket, the Space Launch System (SLS) , with its Orion crew capsule on top, is readied for launch of the unmanned Artemis 1 mission at Cape Canaveral, Florida, U.S., August 29, 2022. Photo credit: Joe Skipper, REUTERS
(SLS)

(CNN) — The Artemis I launch team is gearing up for another countdown that will begin early Saturday morning after a range of issues prevented liftoff on Monday.

The launch window opens at 2:17 p.m. ET and closes at 4:17 p.m. ET on Saturday. Currently, weather conditions are 60% favorable during the launch window, according to weather officer Melody Lovin. She doesn’t expect weather to be a “showstopper” for the launch.

The Artemis I stack, which includes the Space Launch System rocket and Orion spacecraft, continues to sit on Launchpad 39B at Kennedy Space Center in Florida.

While there is no guarantee of a launch on Saturday, “we’re going to try,” said Mike Sarafin, Artemis mission manager, during a news conference Thursday evening. And while the launch team will assume a little more risk heading into the launch attempt, they are acceptable risks that the team is comfortable with, Sarafin said. The Artemis I mission is uncrewed.

One of the areas where the team is assuming more risk is with the conditioning of engine #3, which contributed to the scrub of Monday’s launch attempt. Another is a crack in the foam of the core stage intertank which could break apart and hit part of the solid rocket booster, but the team feels that the chances of that are very low, Sarafin said.

It’s “a marginal increase in risk,” Sarafin said, but “we are clearly ready to fly.”

“We had a plan going into the August 29th launch attempt. It used the sensors to help confirm the proper thermal conditioning of the engines. We had trained that plan, and then we ran into other issues,” Sarafin said.

“We were off the script in terms of the normal tanking operation, and the team did a fantastic job working through the managing of a hazardous condition. One of the worst things that you can do when you find yourself in a hazardous condition is just go even further off script.”

After reviewing the data, the team has a plan for moving forward.

Work has been completed at the launchpad to address two different hydrogen leaks that occurred Monday. The team has also completed a risk assessment of the engine conditioning issue and a foam crack that also cropped up, according to NASA officials.

On Monday, a sensor on one of the rocket’s four RS-25 engines, identified as engine #3, reflected that the engine could not reach the proper temperature range that is required for the engine to start at liftoff.

The engines need to be thermally conditioned before super-cold propellant flows through them before liftoff. To prevent the engines from experiencing any temperature shocks, the launch controllers increase the pressure of the core stage liquid hydrogen tank to send a little bit of the liquid hydrogen to the engines. This is known as a “bleed.”

Now, the team has determined it was a bad sensor providing the reading.

“We’ve had time to go back and look at look at the data and compare many sources of data and do some independent analysis that confirmed it’s a bad sensor,” said John Honeycutt, SLS program manager at NASA’s Marshall Space Flight Center in Huntsville, Alabama. “We’re getting good quality propellant through the engine.”

On launch day, the team will ignore the bad sensor, said John Blevins, SLS chief engineer.

The automated launching sequencer on the rocket checks the temperature, pressure and other parameters. The bad sensor, which is not part of the sequencer, is not considered to be a flight instrument, Blevins said.

The team plans to begin the bleed earlier in the countdown than it occurred on Monday. The countdown for launch will pick up on Saturday at 4:37 a.m. ET during a planned hold. That’s when mission managers receive a weather briefing and decide if the team should proceed with loading propellant into the rocket. The bleed is expected to occur around 8 a.m. ET, said Charlie Blackwell-Thompson, Artemis launch director for NASA’s Exploration Ground Systems Program.

There is no longer a need for a two-day countdown, like during the first launch attempt, “because many of the configurations needed for launch are already in place,” according to NASA.

NASA’s live coverage will begin at 5:45 a.m. ET on their website and TV channel.

“We’ve got to show up, we’ve got to be ready, and we’ve got to see what the day brings,” Sarafin said.

If the mission launches on Saturday, it wil go on a journey around the moon and splashdown in the Pacific Ocean on October 11.

There is still a backup opportunity for the Artemis I mission to launch on September 5 as well.

The Artemis I mission is just the beginning of a program that will aim to return humans to the moon and eventually land crewed missions on Mars.

We want to hear from you.

Have a story idea or tip? Send it to the KSL NewsRadio team here.

Today’s Top Stories

Science + Technology

artificial intelligence banjo...
Curt Gresseth

ChatGPT: Plagiarism super-tool for students or AI brainstorming generator?

Will the future of AI be the interactive chatbot ChatGPT helping cheaters ace exams and tests or a new tool to assist all students in learning?
4 days ago
PayPal...
Curt Gresseth

Banks to launch app to compete with Apple Pay and Venmo

Banks are launching a new app for online money transfers that customers can trust to protect their finances.
5 days ago
Earth core structure. Elements of this image furnished by NASA (Adobe stock)...
Lianne Kolirin, CNN

Earth’s inner core may have stopped turning and could go into reverse, study suggests

With a radius of almost 2,200 miles, Earth's core is about the size of Mars. It consists mostly of iron and nickel, and contains about about one-third of Earth's mass.
5 days ago
During a recent excursion to the icy plains of Antarctica, an international team of researchers dis...
Jackie Wattles, CNN

Rare 17-pound meteorite, one of the largest ever, discovered in Antarctica

The meteorite is about the size of a cantaloupe but weighs 17 pounds. It's one of about 100 that size discovered in Antarctica.
5 days ago
SafeUT app...
Elizabeth Weiler

SafeUT app helps save 14-year-old from kidnapper

SafeUT, the app that was designed for Utahns to instantly receive help, is proving successful after an incident over the weekend. 
7 days ago
This July 20, 1969 photo made available by NASA shows pilot Edwin "Buzz" Aldrin in the Apollo 11 Lu...
Raja Razek and Zoe Sottile, CNN

Retired astronaut Buzz Aldrin marries ‘longtime love’ on his 93rd birthday

Edwin "Buzz" Aldrin, the second person to ever set foot on the moon in 1969, married his "longtime love" on his 93rd birthday on Friday.
9 days ago

Sponsored Articles

Banner with Cervical Cancer Awareness Realistic Ribbon...
Intermountain Health

Five Common Causes of Cervical Cancer – and What You Can Do to Lower Your Risk

January is National Cervical Cancer Awareness month and cancer experts at Intermountain Health are working to educate women about cervical cancer, the tests that can warn women about potential cancer, and the importance of vaccination.
Kid holding a cisco fish at winterfest...
Bear Lake Convention and Visitors Bureau

Get Ready for Fun at the 2023 Bear Lake Monster Winterfest

The Bear Lake Monster Winterfest is an annual weekend event jam-packed full of fun activities the whole family can enjoy. This year the event will be held from January 27-29 at the Utah Bear Lake State Park Marina and Sunrise Resort and Event Center in Garden City, Utah. 
happy friends with sparklers at christmas dinner...
Macey's

15 Easy Christmas Dinner Ideas

We’ve scoured the web for you and narrowed down a few of our favorite Christmas dinner ideas to make your planning easy. Choose from the dishes we’ve highlighted to plan your meal or start brainstorming your own meal plan a couple of weeks before to make sure you have time to shop and prepare.
Spicy Homemade Loaded Taters Tots...
Macey's

5 Game Day Snacks for the Whole Family (with recipes!)

Try these game day snacks to make watching football at home with your family feel like a special occasion. 
Happy joyful smiling casual satisfied woman learning and communicates in sign language online using...
Sorenson

The Best Tools for Deaf and Hard-of-Hearing Workplace Success

Here are some of the best resources to make your workplace work better for Deaf and hard-of-hearing employees.
Team supporters celebrating at a tailgate party...
Macey's

8 Delicious Tailgate Foods That Require Zero Prep Work

In a hurry? These 8 tailgate foods take zero prep work, so you can fuel up and get back to what matters most: getting hyped for your favorite
Artemis I launch team is ready for another ‘try’ on Saturday