This highly anticipated test flight of the Artemis 1 mission, without a crew on board, must test the SLS rocket (for Space Launch System) in real conditions and the Orion capsule at its summit, where the astronauts will take place in the future. To get a green light, NASA teams must successfully complete a fuel tank filling test and obtain a special waiver to avoid re-testing the batteries on an emergency destruction system. rocket. If the agency does not receive this waiver, the rocket will have to return to the assembly building, which would push the schedule back several weeks.
The September 27 firing window will open at 11:37 a.m. local time for 70 minutes, with a scheduled end of mission on November 5. A possible second window is scheduled for October 2, NASA said in a blog post.
Last week, NASA said it hoped to be able to launch SLS on September 23 or 27. The launch of the rocket had been canceled on Monday August 29, then again on Saturday September 3, due to technical problems, a setback which delays the effective launch of the American program back to the Moon, Artemis.