"I think I've found a track, what do you think?"

Discuss your experiences with and ideas about Stardust@home here.

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icebike

Post by icebike »

sb126k wrote:It's Not up in the air, it's down in the aerogel
SB166K: It helps if you use the quote button in a messy thread like this because we are not sure what message you are replying to...

Timbert
Posts: 1
Joined: Fri Aug 11, 2006 4:35 pm
Location: The University of Arizona

5 out of 10 Stardust@home users agree...

Post by Timbert »

Here's my most promising canidate yet. A little more than half agree with me (54 hits out of 104). What say you?
Movie 9486780V1

janin
Posts: 5
Joined: Fri Aug 11, 2006 12:10 am

Re: 5 out of 10 Stardust@home users agree...

Post by janin »

Timbert wrote:Here's my most promising canidate yet. A little more than half agree with me (54 hits out of 104). What say you?
Movie 9486780V1
That actually looks exactly like a track in the calibration movies. I hope it's a track.

Crystallize
Posts: 28
Joined: Wed Aug 02, 2006 11:14 pm

Re: 5 out of 10 Stardust@home users agree...

Post by Crystallize »

Timbert wrote:Here's my most promising canidate yet. A little more than half agree with me (54 hits out of 104). What say you?
Movie 9486780V1
A little faint perhaps, their usually darker... Image

... but not a bad "candidate" though ...
Image

Lithium57
Posts: 1
Joined: Fri Aug 11, 2006 8:30 pm

Post by Lithium57 »


icebike

Post by icebike »

I don't think so. Review training frame #4.

Just my opinion, but those are common.

goldrake
Posts: 72
Joined: Tue Aug 08, 2006 1:29 am
Location: Florence, Italy
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Post by goldrake »

I've a question for you.

I'll know what is the impact direction of the real dust particles.
The point of view of the VM is perpendicular to the aerogel impact surface?
In this case we can view the little tracks like a small oval (like in the calibration movie).
But the most bigger tracks (coused from the bigger particles) can seems simply like a large oval. I don't think that we can view a tracks that cross orizzontally the surface of the aerogel.
This is only my opinion and may be wrong.

All is depending from the direction of the impact versus our point of view.

Sorry for my bad english.

goldrake
Posts: 72
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Location: Florence, Italy
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Post by goldrake »

This is my best movie... what do you think? For me is very similar to the calibration movies !!!

http://stardustathome.ssl.berkeley.edu/ ... =4397867V1

Image

Betelgeuze
Posts: 19
Joined: Sun Aug 06, 2006 1:24 am
Location: Belgium

Post by Betelgeuze »

looks like bad focus to me

goldrake
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Location: Florence, Italy
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Post by goldrake »

Betelgeuze wrote:looks like bad focus to me
Yes,maybe my movie http://stardustathome.ssl.berkeley.edu/ ... =4397867V1
is simply a bad focus, but I've seen many calibration movies very similar.

icebike

Post by icebike »

goldrake wrote:
Betelgeuze wrote:looks like bad focus to me
Yes,maybe my movie http://stardustathome.ssl.berkeley.edu/ ... =4397867V1
is simply a bad focus, but I've seen many calibration movies very similar.
Where this one differs from calibration movies is in all the calibration movies you can get just about everything else out of focus while the track remains in focus.

This item only comes to focus at the bottom of the focus range, (and this is the important bit) at the same time as the surface it is sitting on comes into focus.

IMHO this is an example of slanted surface or bumpy surface, because significant portions of the movie are out of focus at the time the particle becomes focused which is very misleading.

The key thing is that the surface on which the particle sits becomes focused at the same time as the particle, which indicates it is really a surface particle, but it is sitting in a little valley. We are not looking at a track, but rather the particle itself.

I could see why someone could get fooled by this one.

michelsberg
Posts: 4
Joined: Sat Aug 12, 2006 5:46 am

Yet another one

Post by michelsberg »

Hi. Here I have a video with multiple candidates, too. Three particles, all on the left side: http://stardustathome.ssl.berkeley.edu/ ... d=451142V1

But what I really find interesting is that one of them seems to have a little track. What do you think?

Image

24 in 120 viewers agree that this is a candidate.

icebike

Re: Yet another one

Post by icebike »

michelsberg wrote:Hi. Here I have a video with multiple candidates, too. Three particles, all on the left side: http://stardustathome.ssl.berkeley.edu/ ... d=451142V1

But what I really find interesting is that one of them seems to have a little track. What do you think?

24 in 120 viewers agree that this is a candidate.
I think 96 people out of the 120 need to re-take the training.

That particle focuses 9 bars down from the surface (which makes it about 27microns deep). That alone would have had me marking it.

DustBuster
DustMod
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Post by DustBuster »

I was the first on this one... I'm pretty confident.

at the very top of the image a GIANT GAPING TRACK (I think)

http://stardustathome.ssl.berkeley.edu/ ... =6945596V1
No dessert for you- ONE MONTH!

icebike

Post by icebike »

DustBuster wrote:I was the first on this one... I'm pretty confident.

at the very top of the image a GIANT GAPING TRACK (I think)

http://stardustathome.ssl.berkeley.edu/ ... =6945596V1
Hard to tell. It looks like it focuses within one focus bar of everything else on the surface. It would be really nice to see the adjacent movie to see if there is a track running off-screen toward the bottom.

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