SETI public: SETI@Home Prepares to Send Out "Reobservations" Work Units

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SETI@home Prepares to Send Out "Reobservations" Work Units
By Amir Alexander
May 21 , 2003
It has been two months now since SETI@home's Chief Scientist Dan Werthimer and his crew went returned from the Stellar Countdown at Arecibo. While there, during 24 hours of observation spread over several days, they returned to take a second look at the locations of SETI@home's most promising signals. When it was over, they had observed 166 of SETI@home's best sites, as well as 61 other promising SETI locations in the sky.
Although the SETI@home team was ready to pounce on any possible extraterrestrial signal the minute it was detected, nothing resembling such a signal was detected in real time, during the observations. This, however, is no cause for discouragement: real-time analysis is very rough, and would only detect the strongest and most obvious extraterrestrial signals. The time has therefore come to divide up the data into work units, and send it to be analyzed on the personal computers of millions of SETI@home users worldwide.
Producing such work units, however, proved to be no easy task. This is because during the Stellar Countdown, the SETI data was collected and recorded using a different platform and very different instruments than the standard SETI@home data. Whereas year-round the SETI@home data is collected at the needle shaped line-feed, for the reobservations the SETI@home crew used equipment located in the Gregorian dome.

http://planetary.org/html/news/articlearchive/headlines/2003/seti_pointing.html

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