Artemis – Page 39

Green Run Update: Hot Fire Test Targeted for within an Hour

The teams are now targeting a hot fire test for NASA’s Space Launch System (SLS) rocket core stage within an hour. The team has completed a successful pressurization demonstration and is evaluating the data to ensure they are ready to proceed.

Live coverage is underway on NASA Television and the agency’s website.

Teams began the countdown for the hot fire test earlier today. This is the eighth and final test in the Green Run testing series for the rocket’s core stage that will launch NASA’s Artemis I mission around the Moon. Learn more about Green Run, and check back at this blog for updates on the SLS core stage hot fire test.

Green Run Update: NASA TV Coverage Underway for Hot Fire Test 

Countdown is continuing for the hot fire test of the core stage for NASA’s Space Launch System (SLS) rocket. The test is targeted for as early as 4 p.m. EST and is expected to last about 8 minutes to simulate launch and ascent of the SLS to orbit.

NASA Television coverage has begun. Watch live: http://www.nasa.gov/live

Teams powered up the core stage’s avionics systems Thursday, Jan. 14, and began the countdown for the hot fire test earlier today. The team is continuing to closely monitor core stage and facility performance before proceeding into the final phase of the test: the terminal countdown leading to the hot fire.

During this test, the team has repeated many of the major milestones marked during the first wet dress rehearsal including chilling the main propulsion system and completely filling both propellant tanks. Coming up at 10 minutes before the test, the test conductor will poll the team who will give the final “go/no go” to proceed with the hot fire test.

Learn more about Green Run, and check back at this blog for updates on the SLS core stage hot fire test.

Green Run Update: Teams Running Ahead of Schedule, NASA TV begins at 3:20 p.m. EST

Teams are progressing through the countdown and running approximately an hour ahead of schedule. The test is targeted for as early as 4 p.m. EST. Live coverage will begin earlier at 3:20 p.m. on NASA Television and the agency’s website.

Learn more about Green Run, and check back at this blog for updates on the SLS core stage hot fire test.

Green Run Update: Tanking Complete for Hot Fire Test

Engineers have completed tanking for the hot fire test of NASA’s Space Launch System (SLS) rocket core stage at NASA’s Stennis Space Center, and the countdown is proceeding normally.

The liquid hydrogen tank holds 537,000 gallons of liquid hydrogen, cooled to minus 423 degrees Fahrenheit. The liquid oxygen tank holds 196,000 gallons of liquid oxygen, cooled to minus 297 degrees Fahrenheit. The cryogenic fuel and oxidizer in the tanks will be replenished, or “topped off,” as needed, because some of the fuel boils off due to temperature fluctuations as the propellant is loaded. The tanks were filled during an earlier wet dress rehearsal on Dec. 20. Today is only the second time that they have been completely loaded with propellant.

Learn more about Green Run, and check back at this blog for updates on the SLS core stage hot fire test.

This infographic explains more about the Green Run tests that have already occurred before this final hot fire test.

Artemis I Orion Moves For Fueling, Next Step in Launch Preparations

Orion is buttoned up and ready to march towards the Multi-Payload Processing Facility to begin ground processing by the Exploration Ground Systems and Jacobs teams ahead of the Artemis I launch. Shielded by a protective covering for transport, the spacecraft departs its home at the Neil Armstrong Operations and Checkout Building at NASA's Kennedy Space Center in Florida on Jan. 16, 2021. — Orion is buttoned up and ready to march towards the Multi-Payload Processing Facility to begin ground processing by the Exploration Ground Systems and Jacobs teams ahead of the Artemis I launch. Shielded by a protective covering for transport, the spacecraft departs its home at the Neil Armstrong Operations and Checkout Building at NASA’s Kennedy Space Center in Florida on Jan. 16, 2021. Photo credit: NASA/Kim Shiflett

NASA marked another milestone on the path toward the launch of Artemis I on Saturday, as engineers moved the Orion spacecraft out of the Neil Armstrong Operations & Checkout Building on its way to the Multi-Payload Processing Facility (MPPF) at the agency’s Kennedy Space Center in Florida, where the spacecraft will be fueled for its mission around the Moon.

The milestone marked completion of years of assembly and testing operations for the spacecraft and formal transfer of the spacecraft from the Orion Program and its prime contractor Lockheed Martin to NASA’s Exploration Ground Systems (EGS) team responsible for processing the vehicle, integrating it with the Space Launch System rocket, and launching them on their inaugural mission together.

The spacecraft was moved out of the O&C aboard a transport pallet and air bearing system which sits on top of a transporter. In the MPPF, it will be moved into a service stand that provides 360-degree access, allowing engineers and technicians from EGS, its lead contractor Jacobs Technology, and other support organizations to fuel and service the spacecraft. Crane operators will remove the transportation cover and use fuel lines and several fluid ground support equipment panels to load the various gases and fluids into the crew and service modules.

After Orion is fueled and engineers perform final checks in the MPPF, they will move the spacecraft to the Launch Abort System Facility, where EGS will install the Launch Abort System tower and the ogive panels that protect the crew module and LAS and provide its aerodynamic shape.

Orion is a critical component for NASA’s deep space exploration plans. During Artemis I, the spacecraft will launch on the most powerful rocket in the world and fly farther than any spacecraft built for humans has ever flown – 280,000 miles from Earth, thousands of miles beyond the Moon over the course of about a three-week mission.

Green Run Update: Test Team Gives “Go” To Proceed with Tanking

The test team conducted a pre-test briefing in the Test Control Center at the B test complex at NASA’s Stennis Space Center near Bay St. Louis, Mississippi, and gave a “go” to proceed with testing and to fill the propellant tanks.

Over the next several hours, the teams will monitor the systems and load more than 700,000 gallons of cryogenic, or supercooled, liquid oxygen and liquid hydrogen that will be fed to the four RS-25 engines.

The hot fire will last up to 8 minutes and is scheduled to take place during a two-hour window that begins at 5 p.m. EST. Live coverage will begin at 4:20 p.m. EST on NASA Television and the agency’s website.

Learn more about Green Run, and check back at this blog for updates on the SLS core stage hot fire test.

SLS core stage This infographic provides information on the core stage including its two large propellant tanks.

Green Run Update: Preparations for Hot Fire Test Continue on Schedule

Preparations for conducting the final Green Run test for NASA’s Space Launch System (SLS) rocket are proceeding as planned, and the core stage is on schedule for a hot fire test tomorrow igniting all four of its RS-25 engines.

NASA is targeting a two-hour test window that opens at 5 p.m. EST Saturday, Jan.16, for the hot fire test at the agency’s Stennis Space Center near Bay St. Louis, Mississippi. Live coverage will begin at 4:20 p.m. on NASA Television and the agency’s website, followed by a post-test briefing approximately two hours after the test concludes.

The hot fire is the eighth and final test of the Green Run series to ensure the core stage of the SLS rocket is ready to launch Artemis missions to the Moon, beginning with Artemis I. The core stage includes the liquid hydrogen tank and liquid oxygen tank, four RS-25 engines, and the computers, electronics, and avionics that serve as the “brains” of the rocket. During the test, engineers will power up all the core stage systems, load more than 700,000 gallons of cryogenic, or supercold, propellant into the tanks, and fire all four engines at the same time to simulate the stage’s operation during launch, generating 1.6 million pounds of thrust.

Learn more about Green Run, and check back at this blog for updates on the SLS core stage hot fire test.

This video explains exactly how NASA and its partners, core stage lead contractor Boeing, and RS-engines lead contractor, Aerojet Rocketdyne are bringing each part of the core stage to life for the Green Run hot fire test.

Green Run Update: Start of Avionics Power Up for Hot Fire Test

The countdown is underway for the hot fire test with the core stage of NASA’s Space Launch System (SLS) rocket, scheduled for Jan. 16. Engineers have initiated power up of the avionics for the Artemis I core stage.

On Saturday, Jan.16, the management team will provide approval to proceed into the test, followed by a briefing for the test team in the Test Control Center at the B test complex.

Six barges filled with liquid hydrogen and oxygen will supply the propellant to the B-2 test stand at NASA’s Stennis Space Center near Bay St. Louis, Mississippi, where the Green Run tests are taking place. The engines use cryogenic, or supercooled, liquid hydrogen as fuel and liquid oxygen as oxidizer to create combustion.

To fill each of the six barges, three for liquid oxygen and three for liquid hydrogen, it required 18 to 20 tanker trucks worth of propellant. The barges are towed by tug from a fuel depot at Stennis to the B-2 stand.

Learn more about Green Run, and check back at this blog for updates on the SLS core stage hot fire test.

In this video, SLS Stages Manager Julie Bassler, describes avionics and flight software testing conducted in the Systems Integration Laboratory at NASA’s Marshall Space Flight Center in Huntsville, Alabama, to support Green Run.

NASA Space Launch System Rocket Proceeding with Green Run Hot Fire

NASA is targeting the final test in the Green Run series, the hot fire, for as early as Jan.17. The hot fire is the culmination of the Green Run test series, an eight-part test campaign that gradually brings the core stage of the Space Launch System (SLS) — the deep space rocket that will power the agency’s next-generation human Moon missions — to life for the first time.

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SLS Team Completes Propellant Loading of Core Stage During Green Run Test

NASA and Boeing engineers successfully completed propellant loading during the seventh core stage Green Run test, wet dress rehearsal Sunday, Dec. 20. The massive Space Launch System (SLS) rocket’s tanks were loaded with more than 700,000 gallons of liquid hydrogen and liquid oxygen.

Engineers working in the Test Control Center monitored all core stage systems during the test as propellant flowed from six barges into the core stage in the B-2 Test Stand at NASA’s Stennis Space Center near Bay St. Louis, Mississippi. First looks at the data indicate the stage performed well during the propellant loading and replenish process. Part of the test was to simulate the countdown with the tanks loaded, leading up to 33 seconds prior to the engines firing. However, the test ended a few minutes short of the planned countdown duration.

The core stage and the B-2 test stand are in excellent condition, and it does not appear to be an issue with the hardware. The team is evaluating data to pinpoint the exact cause of the early shutdown. Then they will decide if they are ready to move forward with the final test, a hot fire when all four engines will be fired simultaneously.

For more updates, visit this blog or the Green Run web site: https://www.nasa.gov/artemisprogram/greenrun