NASA is planning to run its final test in the Green Run test series for the core stage of the Space Launch System (SLS) rocket that will launch the agency’s Artemis I mission this weekend.

The Artemis program aims to run a manned mission to the Moon by 2024. Artemis I  will be an uncrewed test flight and the first integrated flight of NASA’s Orion spacecraft and Space Launch System heavy-lift rocket.

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The test, known as the hot fire is expected to take place at NASA’s Stennis Space Center near Bay St. Louis, Mississippi on Saturday, January 16.

During the test, engineers will power up all the core stage systems, load more than 700,000 gallons of cryogenic propellant into the tanks and fire all four engines at the same time.

The Green Run test series is a comprehensive assessment of the rocket’s core stage prior to SLS launching Artemis missions. 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.

NASA has completed seven of the eight core stage Green Run tests, including loading and draining propellant for the first time during the most recent test, the wet dress rehearsal, on December 20. Prior tests in the Green Run test series evaluated the stage’s avionics systems, propulsion systems, and hydraulic systems.

The upcoming hot fire test will simulate the stage’s operation during launch.

After the firing at Stennis, the core stage for SLS will be refurbished and shipped on the agency’s Pegasus barge to NASA’s Kennedy Space Center in Florida. The stage will then be assembled with the other parts of the rocket and NASA’s Orion spacecraft in preparation for Artemis I.

Barry Robinson, project manager for SLS core stage Green Run testing at Stennis said, “The next few days are critical in preparing the Artemis I rocket stage, the B-2 Test Stand at NASA’s Stennis Space Center, and the test team for the finale of the Green Run test series. “The upcoming Green Run hot fire test is the culmination of a lot of hard work by this team as we approach a key milestone event for NASA’s Artemis missions.”

The test program of the SLS rocket’s core stage is a combined effort between NASA and its industry partners. Boeing is the prime contractor for the core stage and Aerojet Rocketdyne is the lead contractor for the RS-25 engines.

Emci-Hub Technologies Ltd

By Prof. Joel Barasa

The Catholic University of Eastern Africa (CUEA) Faculty of Computer and Informatics, School of Science P. O. Box 62157-00200 Nairobi -Lang’ata Main Campus Email: joel@emcihubtechltd.co.ke Phone: +254705451853/+254769257365 LinkedIn: https://www.linkedin.com/in/joel-barasa-4a3a9a128/ GitHub: https://github.com/Barojoel Websites: https://emcihubtechltd.co.ke and https://estore.emcihubtechltd.co.ke Mr. Barasa I. Joel is a Kenyan citizen by birth. He is currently an adjunct lecturer and an IT specialist in Curriculum studies in the Catholic University of Eastern Africa (CUEA). Mr. Joel holds Post Graduate Program (EPGP) in Data Science, Business Analytics & Big Data in association with IBM which is India's first and the best Masters in Data Science from mUniversity, Aegis School of Business, Data Science, Cyber Security & Telecommunication. He also holds a Degree in BSc. Information Technology from the University of Kabianga, a Professional Certification CCNA and Data Analysis from the University of Kabianga. Joel is senior Software Developer with over 5 years worked on many projects like Kenbright Insurance, Rongo University eLearning portal, participated in integration of DHIS2 health IT systems at Kericho District Referral Hospital and served as H.O.D ICT department Okame college. Joel is an assessor and verifier in TVET CDACC curriculum implementation.

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