The heat shield issue notwithstanding, NASA reported steady progress toward the anticipated crewed launch of Artemis 2 in November 2024.
“Orion exceeded all performance expectations,” Howard Hu, manager of the Orion program, told reporters yesterday at a NASA briefing to discuss the latest Artemis 1 findings. Over 160 flight test objectives were achieved, of which 21 were added over the course of the mission as managers got “better performance than expected,” he said. Thein the Pacific Ocean on December 11, 2022, following a 26-day trip to the Moon and back.
During inspections and analysis, however, investigators noticed some unanticipated variations across Orion’s heat shield. “Some of the charred material ablated away differently than what our computer models and what our ground testing predicted,” Hu said. “More of this charred material was liberated during reentry than we had expected.
Orion is intended to carry astronauts, but the unexpected performance isn’t a safety issue, according to Hu. He said a “significant amount of margin” was left over, and he doesn’t “believe we reached any limits in terms of a margin perspective.” The protective heat shield did its job and then some, but because this behavior wasn’t predicted by models, it’s something NASA must now investigate.
France Dernières Nouvelles, France Actualités
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