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Sol 3 and onwards - imaging
djellison
post May 29 2008, 03:40 PM
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QUOTE (hendric @ May 29 2008, 04:13 PM) *
Q: Phoenix got below the Mars Scout budget cap by using existing equipment.


Ehhem...it didn't. The initial 'scout' budget was $325m. That went up by about $100m before launch. You have to include the $100m spent on the old '01 lander as well. Total cost about $520m.

Doug
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Stu
post May 29 2008, 03:50 PM
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Here's a question for you Emily (or any Phoenix people lurking in the undergrowth...)

At the risk of sounding slightly ungrateful when the team have done such a magnificent job getting the pictures published online so quickly, are there any plans to sort the raw images page into daily blocks, like the MER ones are? I just ask because it's a bit ungainly at the moment, with everything on the one page; I fear that after a week or so of pictures it will become just too big to use without having to go and make a meal or do some shopping while the page is loading... wink.gif

I too would love to see some "sky shots", it's a real itch I want to scratch, you know? I remember seeing that Sky & Telescope article at the time it was published and thinking how cool it would be to see something like that for real, and now we have cameras and hardware to do such a beautiful scene justice I think it would be a real shame not to at least try. I'm sure they're going to tho.

(BTW: just found this interesting report from JPL on landing night... camera-work's a bit "Cloverfield" but I thought it gives a nice impression of being there...)


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jamescanvin
post May 29 2008, 04:34 PM
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As some of you may have noticed (thanks Algorimancer) the Phoenix raw image update on my site was corrupted earlier. For some reason things got garbled when I tried to FTP from work. It should all be fixed now.

James



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stevelu
post May 29 2008, 05:38 PM
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QUOTE (rlorenz @ May 29 2008, 04:53 AM) *
Good thing you dont run the zoo.

If you warmed the ice to 5 deg C it would boil away quickly. Even exposed ice may sublime away in minutes-hours.

The ovens in TEGA are about 3mm in dia (see http://www.lpl.arizona.edu/~rlorenz/TEGA.pdf )
so you can't get a microscope (which is an entirely different instrument elsewhere on the lander) into them


Thanks for your reply.

"So, it's impossible. How long will it take?" smile.gif
- Leslie Neilson's (yes, that Leslie Neilson) proto-Kirk character in Forbidden Planet

But, if I ran the zoo I would listen to my engineers. So my question would be -- back of the envelope estimate, how much cost & complexity would it add to a lander such as this to provide for a small, sealed 'sllde' (i.e. chamber) in(to) which ice could be melted, to then be imaged at say 200x?

Ideally several different magnifications of course, but let's start simple, especially as in this thought experiment it sounds like we need a lens assembly put in place for this single purpose.

I'm hoping that at least by the time we get to Europa such a capability will be included.

QUOTE
dont think soil sampling is planned for a few sols yet.


True enough. My excuse for bringing this up now is that I'm trying to manage my expectations, and to put the science that we can expect into context -- at least for myself.

Also, my martian friends, who were anxious that they might be exposed (and y'know "there goes the neighborhood") by Phoenix, are breathing much easier now.
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Steve G
post May 29 2008, 06:32 PM
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Just completed watching the latest news conferance, they mentioned the lander "sleeping" yet with continuous sunlight, why would it sleep? (Or is it for the benefit of the team to sleep!)
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Stu
post May 29 2008, 06:34 PM
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Starting to name rocks and features around the lander. The theme: fairy tales and folklore, so we have (another? Doesn't Gusev have one already?) "Sleepy Hollow", "Headless" (as in "horseman" I'm guessing" and "Ichabod", plus "Humpty Dumpty", "Wall" and "Alice"...

Labelled pic here

Peter Smith said they expect to be naming 100 to 200 features, so there's a lot of potential to have your kid's (or your own!) favourite fairy tale character ID's on Mars soon... smile.gif


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volcanopele
post May 29 2008, 06:38 PM
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A few thoughts from the press conference:

1) Emily got in more than 2 questions *tsk tsk* Seriously, at least you got some of the others to say something.
2) NASA TV does look better on a High def TV.
3) The rock circulation idea is pretty interesting. Some of the views of the nearby trough walls gives the appearance that the soil is a conglomerate, with a coarse-grained sand matrix with hand-to-football sized rocks. Basically, the texture below the surface resembles the appearance on the surface, a mix of sand and smallish rocks. I wonder how this will affect digging. The rocks here are pretty diverse with two basic rock "types": angular rocks with relatively smooth, flat top surfaces and lumpy, vesicular rocks. I would presume the second type represent basaltic rocks, but the brighter albedo is a bit odd.
4) Can't wait to see that pan in color.


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Steve G
post May 29 2008, 06:43 PM
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Too bad they didn't take the weight of the MARDI (Not really needed with MRO) and replace it with a third camera on the mast with a terrific telephoto lens to see up close more distance objects of interest.
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djellison
post May 29 2008, 06:48 PM
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QUOTE (Steve G @ May 29 2008, 07:32 PM) *
yet with continuous sunlight, why would it sleep?


All hours of sunshine are not the same. At local midnight, the sun is only 3 degrees above the horizon - the solar array output wont be zero, but it wont be very much at all. At local noon, it's 45 degrees above the horizon - lots of power.

Doug
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Juramike
post May 29 2008, 06:51 PM
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QUOTE (Stu @ May 29 2008, 01:34 PM) *
Starting to name rocks and features around the lander.


I'm hoping that the trough near vector 300 gets the name "Blue Canyon".

This seems to be one of those ubiquitous names you find on just about every hiking map. It would be nice to have one on Mars as well to increase confusion. smile.gif

[Other ubiquitous names include: Deer Lake, Mount Snow, Bald Mountain, Deep Creek, Green River, Green Valley (oops! already got that one!), Rocky Ridge, Blue Lake.]


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volcanopele
post May 29 2008, 07:01 PM
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From today's press release mosaic, a crop showing the hardware in the distance. Used HiRISE image to confirm identification of heat shield and bounce mark, assuming bright spot is backshell.


Attached thumbnail(s)
Attached Image
Attached Image
 


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punkboi
post May 29 2008, 07:03 PM
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Go Phoenix! Waiting on the full-color panorama to be released... mars.gif


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Steve G
post May 29 2008, 07:04 PM
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Good shot (inverted up) to show scoop and deck.
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jamescanvin
post May 29 2008, 08:11 PM
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Well you've all already seen a version of this at yesterdays press conference. But this is my first Phoenix mosaic so I thought I'd show it off anyway. smile.gif



Click image

James


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ahecht
post May 29 2008, 08:16 PM
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QUOTE (Steve G @ May 29 2008, 02:32 PM) *
Just completed watching the latest news conferance, they mentioned the lander "sleeping" yet with continuous sunlight, why would it sleep? (Or is it for the benefit of the team to sleep!)


Don't forget that shadows on Mars are very dark, as is low-angle light. Without a think hazy atmosphere to scatter light, the amount of light that gets to the solar panels when the sun is near the horizon is practially zero.
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