GRAIL: New DISCOVERY mission to the moon |
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GRAIL: New DISCOVERY mission to the moon |
 Dec 2 2012, 07:38 PM
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#46
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Solar System Cartographer  Group: Members Posts: 10145 Joined: 5-April 05 From: Canada Member No.: 227  |
A wee update - MoonKAM was turned on for the extended mission and added some images to the gallery:
http://images.moonkam.ucsd.edu/v/mk12_10/ But now the camara has been affected by a solar flare - it can still be commanded but may not work, as I understand it. I don't know the date of the event yet. https://moonkam.ucsd.edu/news/moonkam_mission_interrupted Phil -------------------- ... because the Solar System ain't gonna map itself.
Also to be found posting similar content on https://mastodon.social/@PhilStooke 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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Dec 2 2012, 07:44 PM
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#47
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 Merciless Robot Group: Admin Posts: 8783 Joined: 8-December 05 From: Los Angeles Member No.: 602 |
Huh.
Please pardon my lack of memory here, but this is a straight-up off-the-shelf camera, isn't it (i.e., not rad-hardened)? If so, seems to have held up pretty well, esp. since we're just approaching the next solar max. -------------------- 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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Dec 2 2012, 08:51 PM
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#48
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Senior Member Group: Members Posts: 2509 Joined: 13-September 05 Member No.: 497 |
QUOTE (nprev @ Dec 2 2012, 12:44 PM)  this is a straight-up off-the-shelf camera, isn't it (i.e., not rad-hardened)? It's not what I would call an "off-the-shelf" camera. http://eclipticenterprises.com/press_releases/928 As to not being "rad-hardened", it depends on what you mean by that. There have been several MSSS cameras (MRO MARCI and LROC WAC, for example) that aren't rad-hardened but can recover from radiation upsets. -------------------- Disclaimer: This post is based on public information only. Any opinions are my own.
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Dec 2 2012, 09:16 PM
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#49
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Merciless Robot Group: Admin Posts: 8783 Joined: 8-December 05 From: Los Angeles Member No.: 602 |
Hmm. Okay, thanks, Mike.
Wonder which event took them out? -------------------- 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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Dec 5 2012, 04:23 PM
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#50
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Solar System Cartographer Group: Members Posts: 10145 Joined: 5-April 05 From: Canada Member No.: 227 |
http://www.spaceflight101.com/grail-mission-updates.html
More news. It was over Thanksgiving. And the final fate of the spacecraft, targeted or not, is still not decided. Phil -------------------- ... because the Solar System ain't gonna map itself.
Also to be found posting similar content on https://mastodon.social/@PhilStooke 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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Dec 5 2012, 04:51 PM
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#51
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Founder Group: Chairman Posts: 14431 Joined: 8-February 04 Member No.: 1 |
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Dec 5 2012, 05:47 PM
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#52
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Solar System Cartographer Group: Members Posts: 10145 Joined: 5-April 05 From: Canada Member No.: 227 |
Pics and maps here. A deeply fractured crust.
Phil http://www.nasa.gov/mission_pages/grail/mu...lery-index.html -------------------- ... because the Solar System ain't gonna map itself.
Also to be found posting similar content on https://mastodon.social/@PhilStooke 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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Dec 5 2012, 08:07 PM
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#53
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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 |
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Dec 6 2012, 07:57 PM
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#54
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Junior Member Group: Members Posts: 78 Joined: 16-October 12 From: Pennsylvania Member No.: 6711 |
Hmm. Looking over the maps doesn't seem to show any obvious discrepancy that would imply a low velocity impact. Thats one strike against the two moon hypothesis. Personally, I'm rather happy. Didn't like that theory much anyway. Our Moon is a unique object.
Anyway, excellent news! I hope NASA scientists can pull more info out of the new data in the future. For our closest neighbor, there is still a lot of unknowns about it. I would love it if they can find more specifics about the Thera-Earth collision. The moon's mantle should have some answers, or it could surprise us. Who knows? |
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Dec 7 2012, 01:07 AM
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#55
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 Administrator Group: Admin Posts: 5172 Joined: 4-August 05 From: Pasadena, CA, USA, Earth Member No.: 454 |
I'm having trouble finding a Mercator-projected map of the Moon to compare to the GRAIL map. Does anybody know a digital one?
-------------------- My website - My Patreon - @elakdawalla on Twitter - Please support unmannedspaceflight.com by donating here.
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Dec 7 2012, 01:43 AM
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#56
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Solar System Cartographer Group: Members Posts: 10145 Joined: 5-April 05 From: Canada Member No.: 227 |
You could go here:
http://www.lpi.usra.edu/resources/mapcatalog/usgsTopo/ or other pages from this list: http://www.lpi.usra.edu/resources/mapcatalog/ But Mercator is not used very much these days as you know. One other option would be to make your own here: http://www.mapaplanet.org/explorer/moon.html Mercator is one of the options under Advanced Options. Choose the data set you want, set the projection and resolution you want... and the lat-long extent. Warning, for Mercator don't choose 90 north to 90 south (it would be infinitely large), but the GRAIL maps are cut off at about 70 N and S. Phil -------------------- ... because the Solar System ain't gonna map itself.
Also to be found posting similar content on https://mastodon.social/@PhilStooke 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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Dec 7 2012, 01:52 AM
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#57
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Administrator Group: Admin Posts: 5172 Joined: 4-August 05 From: Pasadena, CA, USA, Earth Member No.: 454 |
Ah, I'd completely forgotten I could set the projection in map-a-planet. Thanks for the reminder.
Do you know why the lunar folks seem to like Mercator projection so much? -------------------- My website - My Patreon - @elakdawalla on Twitter - Please support unmannedspaceflight.com by donating here.
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Dec 7 2012, 02:06 AM
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#58
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Solar System Cartographer Group: Members Posts: 10145 Joined: 5-April 05 From: Canada Member No.: 227 |
It allows craters at mid- to high-latitudes to appear circular. Almost all traditional lunar sheet maps from ACIC, USGS etc. used conformal projections (Mercator, conformal conic, polar stereographic) with that special characteristic. Only with the advent of digital mapping have non-conformal (read: shape-distorting) projections like Simple Cylindrical (Equirectangular) or [shudder] Sinusoidal been used to any extent.
Phil -------------------- ... because the Solar System ain't gonna map itself.
Also to be found posting similar content on https://mastodon.social/@PhilStooke 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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Dec 7 2012, 02:58 AM
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#59
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 Senior Member Group: Members Posts: 2075 Joined: 13-February 10 From: Ontario Member No.: 5221 |
GRAIL talk starting pretty quick:
http://www.ustream.tv/nasajpl2 |
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Dec 11 2012, 02:59 AM
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#60
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Solar System Cartographer Group: Members Posts: 10145 Joined: 5-April 05 From: Canada Member No.: 227 |
"NASA will host a media teleconference at 10:30 a.m. PST (1:30 p.m. EST) Thursday, Dec. 13, to provide an overview of events leading up to twin spacecraft being commanded to impact the moon's surface on Dec. 17 at approximately 2:28 p.m. PST (5:28 p.m. EST). "
Phil -------------------- ... because the Solar System ain't gonna map itself.
Also to be found posting similar content on https://mastodon.social/@PhilStooke 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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