Lucy, Discovery Mission 13 - a grand tour of the Jupiter Trojans |
Lucy, Discovery Mission 13 - a grand tour of the Jupiter Trojans |
Jan 4 2017, 08:20 PM
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Junior Member Group: Members Posts: 71 Joined: 12-December 16 Member No.: 8089 |
Obligatory new thread for the Lucy mission, now that it has been selected by NASA to launch as Discovery mission 13! Lucy will launch in 2021, and will perform a flyby of a main belt asteroid in 2025, before making flybys of at least six Jupiter trojans from 2027 to 2033. The mission, led by the Southwest Research Institute and Principal Investigator Harold F. Levison, will send a spacecraft carrying updated versions of New Horizons' LORRI and RALPH instruments.
Be sure to check out r/lucymission on reddit as well! EDIT: I have made a mistake. Could a kind mod please move this thread to the "Cometary and Asteroid Missions" subforum? ADMIN: Done. Note for the new members: Generally speaking, please consult a member of the admin/mod team before creating new topics. Not a hard rule, but it does help to keep the place tidy. Also, we encourage all members to review this welcome post for orientation purposes. Thanks! |
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Oct 30 2021, 02:29 PM
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Senior Member Group: Members Posts: 2090 Joined: 13-February 10 From: Ontario Member No.: 5221 |
Lucy was never in storage for an extended period due to delays. I'm sure they're thinking over every possibility. Although we all hope the array finishes deploying, I have been thinking that if this isn't fixed by the time of the Earth flyby next year, the low altitude combined with the size of the arrays, might make it possible to resolve the stuck array directly with Earth-based imagery?
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Oct 30 2021, 05:31 PM
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Senior Member Group: Members Posts: 2517 Joined: 13-September 05 Member No.: 497 |
...possible to resolve the stuck array directly with Earth-based imagery? See https://www.jpl.nasa.gov/nmp/st8/tech_paper...20NGU%20ST8.pdf for some information about how Ultraflex arrays work (BTW, ST8 never flew as far as I know). I don't know what kinds of position information or other telemetry (e.g., motor current) they get during deployment. What's been said suggests that all they get is a single binary flag showing full latching, but I doubt that's true. It's not at all obvious to me if images, especially ground-based, would be of any use whatsoever to fixing the problem. The TTCAM cameras could in theory produce out-of-focus images of the spacecraft, but I don't know if their placement and platform articulation would allow anything useful of the panel (links to a paper on those cameras upthread.) There's a lengthy, mostly off-topic discussion of this at https://forum.nasaspaceflight.com/index.php?topic=46685.0 if you're into that kind of thing. -------------------- Disclaimer: This post is based on public information only. Any opinions are my own.
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