Stardust-NExT, Revisiting Tempel 1 |
Stardust-NExT, Revisiting Tempel 1 |
Dec 30 2010, 03:04 AM
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#16
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Senior Member Group: Members Posts: 1276 Joined: 25-November 04 Member No.: 114 |
Quick question: is the rotation of Temple 1 understood well enough that the mission planners can ensure that the DI impact site will be on the comet's sunlit side when Stardust-NExT flies by? According to this yes. http://www.sdnext.org/mission/pdfs/SD_NEXT_Fctsht.pdf |
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Dec 30 2010, 03:30 AM
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#17
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Senior Member Group: Members Posts: 1592 Joined: 14-October 05 From: Vermont Member No.: 530 |
On the plus side this sounds like a well-understood fault state (esp. because it appears that there is some heritage with this system), and they are taking preventative actions well before the flyby. Yeah, just a bit flip. Somewhat amusing that it was an error with the error-checking, if I read that right. |
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Dec 30 2010, 03:46 AM
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#18
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Founder Group: Chairman Posts: 14434 Joined: 8-February 04 Member No.: 1 |
Actually - I would urge caution on the crater observation. It's a goal, but it's not a certainty. The mag-curve of the nucleus is double bumped, and using the shape model you can match it very well in both bumps - so basically, we may get the crater, or we may not.
If we get it - awesome. If we don't - we get to map the other side of the Nucleus which is also awesome. |
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Dec 30 2010, 05:35 AM
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#19
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Member Group: Members Posts: 890 Joined: 18-November 08 Member No.: 4489 |
QUOTE somewhat worrying mission status update ?? i would not use "somewhat worrying" it looks like a normal everyday address allocation bug At least it is not a BSOD QUOTE It is caused by a latch-up of a redundant memory address register sounds like a raid 1 set up |
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Dec 30 2010, 05:50 AM
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#20
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Senior Member Group: Members Posts: 1592 Joined: 14-October 05 From: Vermont Member No.: 530 |
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Jan 3 2011, 05:38 AM
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#21
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Solar System Cartographer Group: Members Posts: 10229 Joined: 5-April 05 From: Canada Member No.: 227 |
"It's a small team and everybody who's involved in Stardust was also involved in Deep Impact/Hartley 2 -- same science team, same outreach folks."
That's where UMSF comes in... 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 PDF: 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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Jan 3 2011, 10:00 AM
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#22
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Senior Member Group: Admin Posts: 3108 Joined: 21-December 05 From: Canberra, Australia Member No.: 615 |
That's where UMSF comes in...
Hey, anything we can do to help They know we're watching, ready and willing to lend a hand. Just thought about the fact that it was 7 years ago today that Stardust encountered comet Wild2 and now here we are, 42 days from the encounter with Tempel1. I remember it as a hectic time at the Canberra DSN, we were prime for the comet encounter and 24 hours later, prime for MER Spirit's landing. |
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Jan 7 2011, 12:49 PM
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#23
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Senior Member Group: Members Posts: 1729 Joined: 3-August 06 From: 43° 35' 53" N 1° 26' 35" E Member No.: 1004 |
a new status update. stardustnext.jpl.nasa.gov/mission/mission_status11_q1.html
it turns out the comet is still too faint to be visible in OpNav images |
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Jan 7 2011, 04:45 PM
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#24
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Newbie Group: Members Posts: 2 Joined: 16-June 10 Member No.: 5375 |
a new status update. stardustnext.jpl.nasa.gov/mission/mission_status11_q1.html it turns out the comet is still too faint to be visible in OpNav images And it says they have lower fuel reserves than expected. I'm really excited about this encounter. It also mentioned the cold boot due to the "MEEB" restored the memory to its factory default. Does this mean they lost any patches or updates to the memory or memory management that were uploaded to the craft since launch? CJSF -------------------- Two years ago moved from my town
I was looking up past the city lights But the city lights got in my way See the constellation ride across the sky No cigar, no lady on his arm Just a guy made of dots and lines -from "See The Constellation" by They Might Be Giants |
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Jan 19 2011, 10:53 PM
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#25
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Senior Member Group: Members Posts: 1592 Joined: 14-October 05 From: Vermont Member No.: 530 |
No updates for awhile, but this RSS feed may point to updates in that status page:
http://feedity.com/rss.aspx/nasa-gov/UVRWW1ZV |
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Jan 22 2011, 08:42 AM
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#26
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Senior Member Group: Members Posts: 1729 Joined: 3-August 06 From: 43° 35' 53" N 1° 26' 35" E Member No.: 1004 |
a new status update http://stardustnext.jpl.nasa.gov/mission/m...tatus11_q1.html
comet still not in sight QUOTE January 19, 2011
The spacecraft continues to operate as expected and all subsystems are healthy on approach to comet Tempel 1. This week the spacecraft started to tip back and forth to the imaging attitude in order to fix the Navcam mirror in a position that results in less scattered light reaching the CCD. This strategy has resulted in much lower background noise. The comet has not yet been detected in the images, and may not be detected for another week yet. The team continues to prepare for the Tempel 1 flyby by completing the tests of the encounter sequences. |
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Jan 22 2011, 10:14 PM
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#27
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Administrator Group: Admin Posts: 5172 Joined: 4-August 05 From: Pasadena, CA, USA, Earth Member No.: 454 |
Thanks for keeping an eye on that site, Paolo!
-------------------- My website - My Patreon - @elakdawalla on Twitter - Please support unmannedspaceflight.com by donating here.
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Jan 27 2011, 02:39 PM
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#28
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Senior Member Group: Members Posts: 1452 Joined: 26-July 08 Member No.: 4270 |
Stardust has located Tempel 1.
http://www.jpl.nasa.gov/news/news.cfm?rele...elease_2011-029 -------------------- -- Hungry4info (Sirius_Alpha)
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Jan 27 2011, 08:49 PM
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#29
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Member Group: Members Posts: 555 Joined: 27-September 10 Member No.: 5458 |
Heres a slightly cleaned up version:
You can just barely make out a slight crescent and the shape of Tempel 1. -------------------- |
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Jan 27 2011, 09:19 PM
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#30
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Founder Group: Chairman Posts: 14434 Joined: 8-February 04 Member No.: 1 |
That's just the coma - not the nucleus itself. Stardust's Navcam is 3.5 deg FOV, so we wont resolve the nucleus until very near close approach.
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