setiQuest Podcasts

Podcasts

These are podcasts about or related to setiQuest. 

 

Introduction to setiQuest

Submitted By: Gamegoofs2

Subject: Jrseti (Jon Richards), SETI employee and setiQuest developer, provides an introduction to the setiQuest projects and explains how you can participate.

If you have trouble with the player you can download http://setiquest.org/podcasts/setiquest-podcast1.mp3


We will introduce new podcasts as they become available. Stay tuned!

Comments

A lot of volunteers may participate to this quest.

A surprising help from Mr. Jon R. in helping others understand setiQuest. As advanced technology becomes widely spread, a lot of volunteers may participate to this quest. Even if I do have a lot of doubts regarding the methods of humans in achieving the final scope of setiQuest, I am asking myself often: "What if setiQuest finds someone out there? Which will be the next step after radio contact?".

About storage of the raw data

A very interesting podcast.  

I am particularly interested in the storing of some of the data that has been received from the telescopes and this data being made available for public use. I think that it would not be necessary to store all the data captured. Just a few minutes at most perhaps even just a few seconds of data and just from a selected few star systems and not from every object observed.
I would like to have file that was a few seconds recording from a particular system but which contained the simultaneous recording of all the frequencies over a particular small time interval (seconds). If I could choose a format, the name of the file would be the name of system observed and/or the very first line of the file, then just the data with 'headers' for each frequency. I can do some Perl so could write something that reads the data, provided certain 'data markers' were nicely placed, and look for some out-of-the-ordinary data spikes.
It is great to see that you are reaching out the greater community as I think this project is a real global endeavour and should be the work of the many rather than the few.
 

A large amount of data is available now

Hi Paul

If you want a crack at testing your Perl programming on real ATA data, are you aware that many GBytes of data are available for download from the SetiQuest site?

If you go to the SetiQuest Home page, and click on the "Develop new search Apps" button, the go to the "Go to the SetiQuest Data Page" you will find a list of targets that have been observed, and whose results have been set up so you can down load the data. Be warned however the files are BIG (1.9 Gbytes). The only way that I was able to deal with them was to buy a TByte USB drive and work on them from there. Inefficient, but it works.

I found the best starting point was the Pulsar psrb0329+54, which is a 'very strong signal' that can be extracted from a single1.9GByte file using synchronous integration knowing the exact period of repeat. The signal is very straight forward, not having any dispersion problems, or major Doppler shift difficulties. Extracting the triple peaked profile is very satisfying, and is very illuminating regarding the signal to noise ratio that you are having to battle, a few seconds of data is only enough to prove all you are dealing with is noise. with 122 Seconds of data you can pull the profile out. It is true that recovering one of the strongest Pulsar signals is not detecting Alien transmissions, but at least you have a true ATA signal in which you know there is buried a signal - if you can't pull that out, the chances of you being able to detect a transmission from ET is negligible.

See http://setiquest.org/wiki/index.php/Frequency_Domain_measurement_of_Pulsar_Period

If you have any further questions ask them on the main SetiQuest forum, there are several of us left that are interested in processing the data.

Regards

Dave Robinson

 

 Hello Paul.  The setiQuest

 

Hello Paul.  The setiQuest data files use continuous quadrature samples which is very different from the format you described. Dave is correct that the data files are large. Each file is 2 GB and an entire dataset collection ranges from 10 - 40 GB in size.

To learn more about the setiQuest data and file formats check out the wiki page http://setiquest.org/wiki/index.php/SetiQuest_Data_Format

The setiQuest data files can be found on the http://setiquest.org/wiki/index.php/SetiQuest_Data_Links page.

To get started I recommend looking at the first Kepler-4b dataset that was posted on setQuest and try to find, extract, and demodulate the strong narrowband FSK signal. See http://setiquest.org/forum/topic/baudline-analysis-kepler-exoplanet-4