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Expected Signal Count Per Workunit
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Author | Message |
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Bill Butler Send message Joined: 26 Aug 03 Posts: 101 Credit: 4,270,697 RAC: 0 |
I wondered how efficiently workunit crunching digs out the types of signals we are looking for. So, I did the graph below from the Master Science Database on the Science status page. Conclusion: Scientific research is difficult. Notes: 1. Results were used, not Workunits. So, for example, when computing the # of spikes per Workunit in the last 24 hours it was 1,814,321 Spikes / 494,105 Results. The Workunits were 574,720. 2. This doesn't much matter for the whole database because 99% of the Workunits are Results workunits. But only 86% of Last 24 hours Workunits are Results workunits in this date/time snapshot.
"It is often darkest just before it turns completely black." |
ML1 Send message Joined: 25 Nov 01 Posts: 20147 Credit: 7,508,002 RAC: 20 |
Thanks for the chart. One very striking feature of those numbers is the consistency between the recent results and the results for the entire project... But why are the spikes counts slightly different? That all suggests that we are consistently seeing more of the same from Arecibo. (With a little more variability for spikes counts?) Also, how are those results skewed by the caps imposed by the "-9" errors for too many results for a WU? How much is RFI? And do we see anything more than can be expected for random noise? Are there interesting results hidden in there for the data being not-quite random?... Can some summertime students be let loose on the data to look at the results anew afresh? Keep searchin', Martin See new freedom: Mageia Linux Take a look for yourself: Linux Format The Future is what We all make IT (GPLv3) |
William Rothamel Send message Joined: 25 Oct 06 Posts: 3756 Credit: 1,999,735 RAC: 4 |
Are there interesting results hidden in there for the data being not-quite random?... The autocorrelation processing and the rotation of the earth will tend to produce a normal curve. Since we expect noise to be truly random, It will display a Normal (Bell-shaped or Gaussian) spectrum of energy. It will essentially be removed. An intentional signal should pop up out of the noise and be detectable if it is not too weak. |
Joe Send message Joined: 27 Mar 13 Posts: 3 Credit: 4,817 RAC: 0 |
I will post the same question I posted on the SETI home thread. Watching a show about super black holes and they were found by the speed stars and planets orbited around them. Could it be possible that a more advanced life form is using the energy and speed of a super black hole to travel from one galaxy to another? I know the gravity of them eat all around them but if it was used at a distance far enough away that it could be used to travel or even communicate. Is it possible to target those areas? |
Bill Butler Send message Joined: 26 Aug 03 Posts: 101 Credit: 4,270,697 RAC: 0 |
Is it possible to target those areas? (...around black holes) I think you are on to something here. Astropulse seems to actually be a start on your idea. From the Astropulse FAQ's: "What else might Astropulse find? In addition to ET, Astropulse might detect other sources, such as rapidly rotating pulsars, exploding primordial black holes, or as-yet unknown astrophysical phenomena." "It is often darkest just before it turns completely black." |
Bill Butler Send message Joined: 26 Aug 03 Posts: 101 Credit: 4,270,697 RAC: 0 |
And I think a new 5th signal definition is coming - Autocorrelation count. I suspect that will be going into the Master Science Database. "It is often darkest just before it turns completely black." |
Thomas Send message Joined: 9 Dec 11 Posts: 1499 Credit: 1,345,576 RAC: 0 |
Thanks for the chart Bill ! :) Very interesting ! I hope we can see the same with the results of the autocorrelation... ;) |
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