Just to show there's non-zero progress going on, here's perhaps what the daily skymaps will look like when we start regularly generating them. These are the locations (in ra/dec) of all the spikes we inserted into our database in the past 24 hours (about 800K of them). Note that they aren't contiguous in time as they are split/processed in potentially random order - nevertheless there are "clumps" where you can see actual ALFA observations going on.



- Matt

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-- BOINC/SETI@home network/web/science/development person
-- "Any idiot can have a good idea. What is hard is to do it." - Jeanne-Claude

Wow this looks really lovely can you post it in 3mb-10mb higher resolution? and maybe periodically?

I always wonder what little stripe of sky is my pc processing, and now I see the real thing.

I bet there are a few uncoded ufo trails in this graphics. ;) (probable joke)

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Mandtugai!

Wow this looks really lovely can you post it in 3mb-10mb higher resolution? and maybe periodically?

I always wonder what little stripe of sky is my pc processing, and now I see the real thing.

I bet there are a few uncoded ufo trails in this graphics. ;) (probable joke)

Check out boinclogx and seti@home map viewer via boinc addons :)

Cant wait for these daily maps!

~BoB

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... here's perhaps what the daily skymaps will look like when we start regularly generating them...

Perhaps stretch the view ('vertical zoom') to only cover the dec that Arecibo can see?

Looks good,

Regards,
Martin

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See new freedom: Mageia Linux
Take a look for yourself: Linux Format
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... there are "clumps" where you can see actual ALFA observations going on.

Interesting "WMWM" pattern on the left side :-)
Looks rather like a joke :-D

Peter

... there are "clumps" where you can see actual ALFA observations going on.

Interesting "WMWM" pattern on the left side :-)
Looks rather like a joke :-D

Peter

For those of us whom are not among the cognoscenti --Could you annote or narrate exactly what we are looking at with this new advance ??

regards,

Bill

... there are "clumps" where you can see actual ALFA observations going on.

Interesting "WMWM" pattern on the left side :-) ...

... --Could you annote or narrate exactly what we are looking at with this new advance ??

Fair question.

That's a preview shot of the sort of thing that the Near (real-)Time Persistency Checker will show.

The view is a skymap. The blue sinusoidal smudge is our Milky Way galaxy. Various constellations are marked also. The green dots are where the Arecibo ALFA receiver was looking for that particular WU.

The dots form horizontal lines for when ALFA is on but idle and so scans across the sky as the Earth rotates. The WMWM type patterns are from the 'basket weave' scans done during survey work. The various arcs of dots are from other surveys done with ALFA guided along that path.

Those three different modes of operation are what gives the 3 groupings for the most often seen ARs for the WUs.

The final chart may well have different coloured dots depending on how significant the WU results are for that sky position. For example, if any persistent signals have been seen there.

Hope that helps,

Keep searchin',
Martin

AR: Angle Range, the angular distance swept across the sky whilst the WU data is being recorded;

WU: Work Unit, a narrowband (100 seconds + overlap = 107 seconds?) chunk of radio data to be analysed.

See: How s@h Works

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See new freedom: Mageia Linux
Take a look for yourself: Linux Format
The Future is what We all make IT (GPLv3)

... there are "clumps" where you can see actual ALFA observations going on.

Interesting "WMWM" pattern on the left side :-) ...

... --Could you annote or narrate exactly what we are looking at with this new advance ??

Fair question.

That's a preview shot of the sort of thing that the Near (real-)Time Persistency Checker will show.

The view is a skymap. The blue sinusoidal smudge is our Milky Way galaxy. Various constellations are marked also. The green dots are where the Arecibo ALFA receiver was looking for that particular WU.

The dots form horizontal lines for when ALFA is on but idle and so scans across the sky as the Earth rotates. The WMWM type patterns are from the 'basket weave' scans done during survey work. The various arcs of dots are from other surveys done with ALFA guided along that path.

Those three different modes of operation are what gives the 3 groupings for the most often seen ARs for the WUs.

The final chart may well have different coloured dots depending on how significant the WU results are for that sky position. For example, if any persistent signals have been seen there.

Hope that helps,

Keep searchin',
Martin

AR: Angle Range, the angular distance swept across the sky whilst the WU data is being recorded;

WU: Work Unit, a narrowband (100 seconds + overlap = 107 seconds?) chunk of radio data to be analysed.

See: How s@h Works

Thankyou--That helps a lot. This will boost interest in the project and answer a lot of questions that I am sure many of us were wondering about.

Best Regards,

Bill

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I don't think this map is very interesting as it stands (please don't blow a gasket). If a map like this is generated every day, then we will only see a bunch of green dots each day. If they are superimposed, then we will start to see dense bands of green dots. And so on.

I suggest that the map only contain the outliers (some how defined). So, perhaps, for a given solid angle, set a threshold and only show a green dot at the center of the solid angle region whose spike number exceeds the threshold. Maybe use different colors for spikes, gaussians, ...

Is that just 24 hours of scanning? My wild guess is that about three percent of the entire area accessible to the Arecibo apparatus had been scanned over that period. For 24 hours that sounds great.

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Is that just 24 hours of scanning?

Isn't it rather last 24 hours of crunching? (Returned results, inserted into DB.) Although, in the average the two sets will be probably pretty similar.

Peter

Is that just 24 hours of scanning?

Isn't it rather last 24 hours of crunching? (Returned results, inserted into DB.) Although, in the average the two sets will be probably pretty similar.

Peter

I don't know. If so, that might even be better. As far as I know, 24 hours of results received is less than 24 hours of units scanned. Otherwise there would always be a shortage of units for us to crunch.

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I don't think this map is very interesting as it stands (please don't blow a gasket). If a map like this is generated every day, then we will only see a bunch of green dots each day. If they are superimposed, then we will start to see dense bands of green dots. And so on.

I suggest that the map only contain the outliers (some how defined). So, perhaps, for a given solid angle, set a threshold and only show a green dot at the center of the solid angle region whose spike number exceeds the threshold. Maybe use different colors for spikes, gaussians, ...

I have to agree with this.....surely it wouldn't take much more for a map to be rigged up with the strongest signals and separated by type. But then again I don't know much about that sort of thing.....

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