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Hayabusa data released!, AMICA images, shape model, and more |
 Apr 24 2007, 01:56 PM
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 Administrator  Group: Admin Posts: 5172 Joined: 4-August 05 From: Pasadena, CA, USA, Earth Member No.: 454  |
Hayabusa's data has been released!
Press release: http://www.isas.jaxa.jp/e/snews/2007/0424.shtml Site for data: http://hayabusa.sci.isas.jaxa.jp/ The release includes the AMICA (camera), NIRS, LIDAR, and XRS data, plus SPICE kernels and the shape model!!! AMICA data (from http://hayabusa.sci.isas.jaxa.jp/amica.pl) is in FITS format. There is an observation log with basic information about each image, available through that link. Unfortunately, I have to return to bed to attempt to overcome a bout of the flu so I can't play  I knew this was coming yesterday and wanted to check for it and let you guys know about it. Have fun.--Emily -------------------- My website - My Patreon - @elakdawalla on Twitter - Please support unmannedspaceflight.com by donating here.
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Apr 24 2007, 02:11 PM
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 The Poet Dude Group: Moderator Posts: 5551 Joined: 15-March 04 From: Kendal, Cumbria, UK Member No.: 60 |
VERY cool pics! Just had a 5 min browse before heading out to work, but this caught my eye...
Is that dark area at the top an imaging artefact, or the shadow of the probe's panels falling on the asteroid? If it's the latter, that's beautiful... 
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Apr 24 2007, 02:24 PM
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 Senior Member Group: Members Posts: 3516 Joined: 4-November 05 From: North Wales Member No.: 542 |
That shape model 3D movie is something definitely not to be missed. Top of the bill for my astronomy class this evening!!!
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Apr 24 2007, 03:31 PM
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#4
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 Senior Member Group: Admin Posts: 4763 Joined: 15-March 05 From: Glendale, AZ Member No.: 197 |
QUOTE (ngunn @ Apr 24 2007, 06:24 AM)  That shape model 3D movie is something definitely not to be missed. Top of the bill for my astronomy class this evening!!! Agreed. That is just about the coolest thing. http://hayabusa.sci.isas.jaxa.jp/data/shap...awa_g070104.mov -------------------- If Occam had heard my theory, things would be very different now.
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Apr 24 2007, 03:46 PM
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#5
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 Special Cookie Group: Members Posts: 2168 Joined: 6-April 05 From: Sintra | Portugal Member No.: 228 |
In spite of all the problems this mission is truly something...
-------------------- "Ride, boldly ride," The shade replied, "If you seek for Eldorado!"
Edgar Alan Poe |
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Apr 24 2007, 03:55 PM
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 Senior Member Group: Members Posts: 3652 Joined: 1-October 05 From: Croatia Member No.: 523 |
The 3D model of the asteroid has got to be one of the coolest things I've seen this year. And someone still regards this mission as a failure...
Stu, whatever that is, I don't think it's a shadow. Way too big for that. I'd guess something in the optics. Might even be color filters as far as I know. EDIT: Ah, silly me, should have read the instrument description... "Four position-angle glass polarizers were mounted on an edge of the 1024 pixel by 1024 pixel CCD chip." That's the "shadowing" effect as polarizers let through less light. -------------------- |
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Apr 24 2007, 05:25 PM
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 Member Group: Members Posts: 408 Joined: 3-August 05 Member No.: 453 |
The dark area at the top of the image is (from the JAXA web site):
"Four position-angle glass polarizers were mounted on an edge of the 1024 pixel by 1024 pixel CCD chip." You can see it more clearly on the various close up images. Airbag |
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Apr 24 2007, 06:43 PM
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#8
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Member Group: Members Posts: 408 Joined: 3-August 05 Member No.: 453 |
It turns out the B, V and W filters used on the AMICA camera make it very easy to make pleasing RGB-like images by mapping BVW to BGR. I have attached such a composite from the Earth swingby below; all I did was tweak the gamma a little to brighten the image.
Airbag |
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Apr 24 2007, 06:47 PM
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#9
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Senior Member Group: Members Posts: 3516 Joined: 4-November 05 From: North Wales Member No.: 542 |
Very nice, Airbag. What's the yellow spot near New York?
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Apr 24 2007, 06:51 PM
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 Senior Member Group: Moderator Posts: 3242 Joined: 11-February 04 From: Tucson, AZ Member No.: 23 |
QUOTE (ustrax @ Apr 24 2007, 08:46 AM) In spite of all the problems this mission is truly something... As a member of the Cassini project ("where all nicknames for surface features relate to cats"), I dub the boulder at lower left "Tiger Rock" -------------------- &@^^!% Jim! I'm a geologist, not a physicist!
The Gish Bar Times - A Blog all about Jupiter's Moon Io |
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Apr 24 2007, 07:20 PM
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Member Group: Members Posts: 408 Joined: 3-August 05 Member No.: 453 |
QUOTE (ngunn @ Apr 24 2007, 01:47 PM) What's the yellow spot near New York? Data drop out in the B channel? I just used the raw jpg images "as is"; no attempt at any corrections or filtering beyond just a touch of gamma. Airbag |
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Apr 24 2007, 09:37 PM
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#12
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The Poet Dude Group: Moderator Posts: 5551 Joined: 15-March 04 From: Kendal, Cumbria, UK Member No.: 60 |
re "shadow" - thanks for clearing that up guys. I'd probably have found that if I'd had time before going out.
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Apr 25 2007, 01:20 AM
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 Member Group: Members Posts: 809 Joined: 11-March 04 Member No.: 56 |
Looking at the 3-dimensional model, it seems really obvious that Itokawa is two, maybe three big chunks of rock stuck together at an odd angle with some accreted rubble cementing them together.
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Apr 25 2007, 03:53 AM
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#14
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Member Group: Members Posts: 600 Joined: 26-August 05 Member No.: 476 |
QUOTE (Stu @ Apr 24 2007, 07:11 AM) Is that dark area at the top an imaging artefact, or the shadow of the probe's panels falling on the asteroid? If it's the latter, that's beautiful... It's a modesty shield. The base of my mind working there. Sometimes a cigar is just a cigar.
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Apr 25 2007, 04:28 PM
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#15
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 Senior Member Group: Members Posts: 2530 Joined: 20-April 05 Member No.: 321 |
QUOTE (ngunn @ Apr 24 2007, 11:47 AM) Very nice, Airbag. What's the yellow spot near New York? Based on what I've seen while driving through, it could be the clouds of New Jersey, which can also be green, magenta, or brown, depending on the day's industrial activity. |
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