DART & HERA, NASA/ESA Asteroid Redirection Missions |
DART & HERA, NASA/ESA Asteroid Redirection Missions |
Nov 24 2021, 07:27 AM
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Merciless Robot Group: Admin Posts: 8784 Joined: 8-December 05 From: Los Angeles Member No.: 602 |
Surprised we didn't already have a thread. DART launched successfully at 0621 UTC today (23 Nov 21). Mission page here, encounter (as in collision) with small satellite of 65803 Didymos in late Sep/early Oct 2022.
-------------------- A few will take this knowledge and use this power of a dream realized as a force for change, an impetus for further discovery to make less ancient dreams real.
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Sep 28 2022, 12:28 AM
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Senior Member Group: Members Posts: 4251 Joined: 17-January 05 Member No.: 152 |
Indeed, as I mentioned this is a job for gory-details calculations. I did find it interesting and surprizing, though, that the one energy is ~1000 times the other.
My vague understanding of the justification of this was that the models vary by factors of order unity in predictions of the delta v imparted to the moon, due to the uncertainties in the mechanical properties etc, and they wanted to pin down those factors somewhat. I'd still worry that those factors might be significantly different for different asteroids, impact geometry, etc, so indeed it isn't clear what you've learnt... Yeah, it was cool. |
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Lo-Fi Version | Time is now: 5th June 2024 - 08:20 AM |
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