Lucy, Discovery Mission 13 - a grand tour of the Jupiter Trojans |
Lucy, Discovery Mission 13 - a grand tour of the Jupiter Trojans |
Nov 1 2023, 07:10 PM
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#76
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Member Group: Members Posts: 655 Joined: 22-January 06 Member No.: 655 |
Nice animation of the gyrations of Lucy to keep the instruments pointed at asteroid Dinkinesh. Dinkinesh encounter animation Seems counter-intuitive to see the spacecraft pivot around the camera platform like that, but wow! Thanks for the link Kenny. |
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Nov 1 2023, 07:11 PM
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#77
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Member Group: Members Posts: 436 Joined: 14-December 15 Member No.: 7860 |
https://blogs.nasa.gov/lucy/?fbclid=IwAR08J...9NvWR23oF6tUvP4
quote: "The Lucy operations team has confirmed that the NASA’s Lucy spacecraft has phoned home after its encounter with the small main belt asteroid, Dinkinesh. Based on the information received, the team has determined that the spacecraft is in good health and the team has commanded the spacecraft to start downlinking the data collected during the encounter. It will take up to a week for all the data collected during the encounter to be downlinked to Earth. The team is looking forward to see how the spacecraft performed during this first in-flight test of a high-speed asteroid encounter." |
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Nov 1 2023, 07:11 PM
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#78
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Member Group: Members Posts: 655 Joined: 22-January 06 Member No.: 655 |
Can't wait to see the results - good luck to the team!"
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Nov 1 2023, 07:27 PM
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#79
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Senior Member Group: Members Posts: 1585 Joined: 14-October 05 From: Vermont Member No.: 530 |
Googling for information, whether there is a press conference scheduled, etc... found this article about sifting through WISE data to do a study:
https://www.nasa.gov/missions/lucy/data-fro...roid-dinkinesh/ ... small enough to be detectable, but not detected, per se. Will be interesting to see if these images are novel or not. It's such a small object... |
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Nov 2 2023, 06:13 PM
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#80
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Member Group: Members Posts: 701 Joined: 3-December 04 From: Boulder, Colorado, USA Member No.: 117 |
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Nov 2 2023, 06:18 PM
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#81
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Merciless Robot Group: Admin Posts: 8784 Joined: 8-December 05 From: Los Angeles Member No.: 602 |
Amazing! How cool is that? Gotta love serendipity; it's the "s" in science!
L'LORRI sure seems to perform quite well, and of course the entire integrated autonomous targeting process obviously did too. Nice win for the team. -------------------- 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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Nov 2 2023, 06:42 PM
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#82
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Member Group: Members Posts: 655 Joined: 22-January 06 Member No.: 655 |
Fabulous! Wonderful stuff. Another unique little world(s)
The terminal tracking system seems to be more than capable of dealing with 'distractions' |
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Nov 2 2023, 07:49 PM
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#83
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Senior Member Group: Members Posts: 1585 Joined: 14-October 05 From: Vermont Member No.: 530 |
Nice! Dinkinesh is about 1/2 the size of Dactyl so even taking moons into account, it is indeed setting records for Dinki...ness. |
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Nov 2 2023, 08:20 PM
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#84
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Member Group: Members Posts: 557 Joined: 1-May 06 From: Scotland (Ecosse, Escocia) Member No.: 759 |
Fabulous and amazing result...!
And it does look like Dinkinesh might have an equatorial bulge like both Bennu and Ryugu ... (assuming that the spin axis is vertical in the new photo.) |
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Nov 2 2023, 08:58 PM
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#85
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Senior Member Group: Members Posts: 2090 Joined: 13-February 10 From: Ontario Member No.: 5221 |
Lucy is having quite the ride multiplying asteroids! At this rate, I don't know what to expect at the trojans! Interesting how the satellite evaded prior observation, (presumably it would be visible via an occultation, but none happened, did they?)
Definitely a curious shape on the moon, seems like another giant boulder on its southern hemisphere (and an equatorial ridge, perhaps?) And presumably we can get a mass measurement too.... |
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Nov 2 2023, 09:36 PM
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#86
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IMG to PNG GOD Group: Moderator Posts: 2251 Joined: 19-February 04 From: Near fire and ice Member No.: 38 |
This is amazing. I wasn't expecting anything really unexpected from this flyby so this is a very nice surprise.
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Nov 2 2023, 10:31 PM
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#87
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Newbie Group: Members Posts: 9 Joined: 25-September 15 Member No.: 7790 |
What a cool surprise!
Is this the first time we've discovered a moon of an asteroid only during the flyby since Ida and Dactyl? |
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Nov 2 2023, 10:40 PM
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#88
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Solar System Cartographer Group: Members Posts: 10186 Joined: 5-April 05 From: Canada Member No.: 227 |
Yes, that's right. Lots of other binaries have been detected using earth-based radar and telescopes but this and Ida/Dactyl are the only two discovered in the flyby data.
Phil -------------------- ... because the Solar System ain't gonna map itself.
Also to be found posting similar content on https://mastodon.social/@PhilStooke Maps for download (free PD: https://upload.wikimedia.org/wikipedia/comm...Cartography.pdf NOTE: everything created by me which I post on UMSF is considered to be in the public domain (NOT CC, public domain) |
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Nov 3 2023, 03:08 AM
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#89
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Senior Member Group: Members Posts: 2517 Joined: 13-September 05 Member No.: 497 |
The terminal tracking system seems to be more than capable of dealing with 'distractions' One of the primary Lucy targets (617 Patroclus) is a binary so this always had to be considered. But for this flyby distance and target size I doubt it mattered much. https://ntrs.nasa.gov/api/citations/2022000...d%20Mission.pdf for more details. -------------------- Disclaimer: This post is based on public information only. Any opinions are my own.
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Nov 3 2023, 06:10 AM
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#90
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Solar System Cartographer Group: Members Posts: 10186 Joined: 5-April 05 From: Canada Member No.: 227 |
"And presumably we can get a mass measurement too.... "
We might get a mass estimate if the moon's orbit can be determined reasonably well, but that could be very difficult given the rapid flyby. The spacecraft trajectory is not going to be altered by this small object so the moon's orbit is the only hope. -------------------- ... because the Solar System ain't gonna map itself.
Also to be found posting similar content on https://mastodon.social/@PhilStooke Maps for download (free PD: https://upload.wikimedia.org/wikipedia/comm...Cartography.pdf NOTE: everything created by me which I post on UMSF is considered to be in the public domain (NOT CC, public domain) |
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