Moon Images By SMART-1 |
Moon Images By SMART-1 |
Jun 2 2006, 11:32 AM
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#86
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Senior Member Group: Members Posts: 2454 Joined: 8-July 05 From: NGC 5907 Member No.: 430 |
This image, taken by the advanced Moon Imaging Experiment (AMIE) on board
ESA's SMART-1 spacecraft, shows the central peaks of crater Zucchius. Full story: http://www.esa.int/esaSC/SEMVQM9ATME_index_0.html -------------------- "After having some business dealings with men, I am occasionally chagrined,
and feel as if I had done some wrong, and it is hard to forget the ugly circumstance. I see that such intercourse long continued would make one thoroughly prosaic, hard, and coarse. But the longest intercourse with Nature, though in her rudest moods, does not thus harden and make coarse. A hard, sensible man whom we liken to a rock is indeed much harder than a rock. From hard, coarse, insensible men with whom I have no sympathy, I go to commune with the rocks, whose hearts are comparatively soft." - Henry David Thoreau, November 15, 1853 |
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Jun 2 2006, 12:39 PM
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#87
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Solar System Cartographer Group: Members Posts: 10128 Joined: 5-April 05 From: Canada Member No.: 227 |
I completely agree with ugordan on this point. First, in that press release, the purpose is just to illustrate two contrasting terrains. Nothing wrong with that.
And second, there's no actual obligation for scientists to release data as it accumulates. We are spoiled by the daily release from MER and Cassini - and it appears the Cassini daily release was only accepted reluctantly - but frankly we are lucky to have it. A year or so after the end of the mission was generally how it worked for years, and in other disciplines data are often never released for free distribution. I enjoy, and use, the daily releases and really appreciate them, but they aren't a right. All SMART-1 images will be available eventually. Be patient! 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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Jun 2 2006, 02:01 PM
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#88
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Senior Member Group: Members Posts: 2492 Joined: 15-January 05 From: center Italy Member No.: 150 |
SMART images are blurried and in fact can be greatly improved through accurate sharpening; herebelow you'll find last releases reprocessed:
Hey, consider that resolution in m/pixel is always worse than Hubble's moon pictures !. -------------------- I always think before posting! - Marco -
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Jun 2 2006, 03:01 PM
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#89
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Member Group: Members Posts: 593 Joined: 20-April 05 Member No.: 279 |
The very first line on the space science part of the ESA's site is:
QUOTE Science gives mankind inspiration and aspiration. ...Nice idea. I look forward to being inspired, and to aspire. But at this rate, with SMART-1 I'll perspire then expire before getting the goods. I saw a press release which I suppose the ESA would call "outreach". But it's not really thrilling the public, is it? A brace of four-month-old pictures and the accompanying blinkin' obvious caption aimed at (what?) a primary-school level audience doesn't, at this point, seem like a worthy return on my, or anyone else's, tax-euros. That's simply not good enough, and I'm a space enthusiast. Phil went on to mention the difference between this and MER/Cassini releases, suggesting perhaps, that MER/Cassini are different to the traditional norm. Well, I'd agree that it's a relatively novel experience, to be able to fill our hard-drives with new images and data every day, but in the modern world I'd have to ask "why not?" Why not hand out the data to anyone who wants it? Science on that (often raw) data is one thing, but public accessibility to early releases from a publicly funded programme quite another. Surely? All SMART-1 images will be available eventually. Be patient! I shall twiddle my thumbs and shut up. Andy G |
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Jun 2 2006, 03:55 PM
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#90
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Interplanetary Dumpster Diver Group: Admin Posts: 4404 Joined: 17-February 04 From: Powell, TN Member No.: 33 |
I am not really interested in its individual images...it is when they make multispectral maps from them that I will be excited.
I will also say that a lot of the press images seem to be shrunken. -------------------- |
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Guest_DonPMitchell_* |
Jun 2 2006, 11:25 PM
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#91
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Guests |
I'm waiting for the altimetry data from LRO! It's remarkable that we have better data for Mars than we do for the Moon. How good will the SMART images be, and what will the total coverage be? How will it compare to the Clementine mapping?
To me, the intertesting thing about SMART-1 was the ion propulsion. It was the second spacecraft to really use ion engines to get somewhere. Deep Space-1 used an American electrostatic ion engine, SMART-1 uses a Russian Hall-effect engine. The SPD engines (statzionariykh plazmennykh dvigatelyakh )were pioneered by OKB Fakel in the early 1970s, used for station keeping of Meteor and Yamal satellites. Their most powerful engines can produce up to 80 gram-force of thrust and a specific impulse of 3000 sec. That's almost 10 times more efficiency than chemical rocket engines (whcih max out around 400 sec for the best of them). The Phobos-Grunt mission will contain 3 of the SPD-140 engines. Keeping my fingers crossed that mission will really happen (and actually work). |
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Guest_BruceMoomaw_* |
Jun 3 2006, 05:03 AM
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#92
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Guests |
Resolution of the Clementine cameras at its periapsis of 425 km was 115 m/pixel for the UV/visible camera (6 bands), 178m for the near-IR camera (6 bands), 65 m for the 1-band long-IR camera, and 30 m for the camera associated with the Lidar (5 bands). That periapsis was moved from 30 deg S to 30 deg N over the mission. Apoapsis was 8300 km.
Resolution of SMART-1's AMIE camera (3 bands, all within the range of Clementine's UV/visible camera) at its periapsis of 300 km is 27 m/pixel. Apoapsis is 3000 km. Periapsis was left at the south pole during the primary mission, but has now been moved to 30 deg S. Area coverage by the two missions can perhaps be guessed at from these figures -- obviously they've covered the Moon's southern hemisphere much better than its northern one. As for Clementine's Lidar coverage, there's an excellent summary at http://nssdc.gsfc.nasa.gov/database/Master...=1994-004A&ex=4 . Personally, I'm a lot more interested in seeing the results from SMART's near-IR spectrometer (never taken to the Moon before) and its X-ray spectrometer (first map outside a narrow equatorial zone). |
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Guest_DonPMitchell_* |
Jun 3 2006, 08:27 AM
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#93
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Guests |
Resolution of the Clementine cameras at its periapsis of 425 km was 115 m/pixel for the UV/visible camera (6 bands), 178m for the near-IR camera (6 bands), 65 m for the 1-band long-IR camera, and 30 m for the camera associated with the Lidar (5 bands). That periapsis was moved from 30 deg S to 30 deg N over the mission. Apoapsis was 8300 km. Resolution of SMART-1's AMIE camera (3 bands, all within the range of Clementine's UV/visible camera) at its periapsis of 300 km is 27 m/pixel. Apoapsis is 3000 km. Periapsis was left at the south pole during the primary mission, but has now been moved to 30 deg S. Area coverage by the two missions can perhaps be guessed at from these figures -- obviously they've covered the Moon's southern hemisphere much better than its northern one. As for Clementine's Lidar coverage, there's an excellent summary at http://nssdc.gsfc.nasa.gov/database/Master...=1994-004A&ex=4 . Personally, I'm a lot more interested in seeing the results from SMART's near-IR spectrometer (never taken to the Moon before) and its X-ray spectrometer (first map outside a narrow equatorial zone). Thanks. I've looked at the Clementine LIDAR data. It is too course to be of much use for bumpmapping. |
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Jun 3 2006, 12:43 PM
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#94
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Senior Member Group: Members Posts: 2530 Joined: 20-April 05 Member No.: 321 |
I have a better candidate -- why don't we attack, for example, the VIMS instrument' s team aboard Cassini instead? I don't see all too many releases from an instrument that supposedly has better visibility through Titan's haze than ISS, but that doesn't seem to bother anyone. http://www.unmannedspaceflight.com/index.p...indpost&p=45962 |
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Jun 30 2006, 11:54 PM
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#95
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Senior Member Group: Members Posts: 2488 Joined: 17-April 05 From: Glasgow, Scotland, UK Member No.: 239 |
A sudden flurry of activity at last from ESA, demonstrating that they had the images all the time:
http://www.esa.int/esaSC/SEMN1GL8IOE_index_0.html There's 136 images in that movie alone - more than we've seen to date. Bob Shaw -------------------- Remember: Time Flies like the wind - but Fruit Flies like bananas!
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Jul 1 2006, 06:58 AM
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#96
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Senior Member Group: Members Posts: 2530 Joined: 20-April 05 Member No.: 321 |
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Jul 1 2006, 07:30 AM
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#97
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Senior Member Group: Members Posts: 2492 Joined: 15-January 05 From: center Italy Member No.: 150 |
Damn, Bob, you're right!
They say: "From these distances, a series of images could be obtained with some overlap between them, that allowed to build a mosaic during a good part of the orbit". Partial result should be something like this: These are only 7 frames (I excluded very first ones due to heavy over-exposure); some enlargement was needed on first ones, so spacecraft was in the approaching phase of it's elongated orbit (1000x5000 Km). Any volunteer wants to complete this work for entire orbit? -------------------- I always think before posting! - Marco -
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Jul 1 2006, 08:34 AM
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#98
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Senior Member Group: Members Posts: 2492 Joined: 15-January 05 From: center Italy Member No.: 150 |
...and this is the final portion, showing north polar region between Carpenter and Goja craters:
-------------------- I always think before posting! - Marco -
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Jul 1 2006, 01:49 PM
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#99
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Senior Member Group: Members Posts: 2488 Joined: 17-April 05 From: Glasgow, Scotland, UK Member No.: 239 |
...and this is the final portion, showing north polar region between Carpenter and Goja craters: Marco: Good stuff! It's sad that we're reduced to silly things like frame-grabbing, but at least there's something there for us to play with at last. Bob Shaw -------------------- Remember: Time Flies like the wind - but Fruit Flies like bananas!
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Aug 10 2006, 05:05 AM
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#100
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Senior Member Group: Members Posts: 2492 Joined: 15-January 05 From: center Italy Member No.: 150 |
An oblique look on the north lunar far west:
http://www.esa.int/SPECIALS/SMART-1/SEM787BUQPE_1.html Here below an enhanced version (note the strange solarization effect on bright features around the low/left missec box) -------------------- I always think before posting! - Marco -
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