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Aerospace Engineering
Artemis 1 going to the Moon (launched Nov 16)
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[QUOTE="mfb, post: 6796224, member: 405866"] Saturday September 3, 2:17 pm local (18:17 UTC), again a two hour window. [url=https://blogs.nasa.gov/artemis/2022/08/30/nasa-targets-sept-3-for-next-artemis-i-moon-mission-launch-attempt/]NASA blog[/url] I don't see a discussion what exactly they want to change/fix, apart from starting the engine chilldown earlier. Last year [url=https://www.nasaspaceflight.com/2021/11/artemis-1-launch-periods/]we got this launch window planning document[/url]. It says at least 48 hours between a first and a second launch attempt, and at least 72 hours between a second and third attempt, based on the time needed to refill hydrogen and oxygen tanks on site. With the five days between attempt 1 and 2 now it's likely that a third attempt 48 hours later will be possible: September 3 as baseline, and September 5 (5:12 pm local or 22:12 UTC, 90 minute launch window) as option if needed. If they miss both they need to roll the vehicle back to VAB and we won't get a launch before October. [/QUOTE]
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Artemis 1 going to the Moon (launched Nov 16)
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