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Three Years of SETI@home: A Status Report

Published online by Cambridge University Press:  19 September 2017

Eric J. Korpela
Affiliation:
Space Sciences Laboratory, University of California, Berkeley, CA 94720-7450, U.S.A.
Jeff Cobb
Affiliation:
Space Sciences Laboratory, University of California, Berkeley, CA 94720-7450, U.S.A.
Steve Fulton
Affiliation:
Space Sciences Laboratory, University of California, Berkeley, CA 94720-7450, U.S.A.
Matt Lebofsky
Affiliation:
Space Sciences Laboratory, University of California, Berkeley, CA 94720-7450, U.S.A.
Eric Heien
Affiliation:
Space Sciences Laboratory, University of California, Berkeley, CA 94720-7450, U.S.A.
Eric Person
Affiliation:
Space Sciences Laboratory, University of California, Berkeley, CA 94720-7450, U.S.A.
Paul Demorest
Affiliation:
Space Sciences Laboratory, University of California, Berkeley, CA 94720-7450, U.S.A.
Robert Bankay
Affiliation:
Space Sciences Laboratory, University of California, Berkeley, CA 94720-7450, U.S.A.
David Anderson
Affiliation:
Space Sciences Laboratory, University of California, Berkeley, CA 94720-7450, U.S.A.
Dan Werthimer
Affiliation:
Space Sciences Laboratory, University of California, Berkeley, CA 94720-7450, U.S.A.

Abstract

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The SETI@home project has recently completed its third year of active data analysis. Over 4 million volunteers have joined the search, providing a combined total of over 1 million CPU-years of processing power. SETI@home performs a sensitive search for extraterrestrial signals in a 2.5 MHz band centered on 1420 MHz. SETI@home searches a wide parameter space including 14 octaves of signal bandwidth and 15 octaves of pulse period with Doppler drift corrections from −50 Hz/s to +50 Hz/s. We will briefly describe the SETI@home project and the algorithms used in the SETI@home client. We will describe the post-processing methods we use to reject RFI and select candidate signals from the nearly 4 billion “hits” returned by SETI@home clients.

Type
Search for Extraterrestrial Intelligence (SETI)
Copyright
Copyright © Astronomical Society of the Pacific 2004 

References

Anderson, D. P., et al. 2002, Communications of the ACM, in press Google Scholar
Cobb, J. et al. 1997, in Astronomical and Biochemical Origins and the Search for Life in the Universe, ed. Cosmovici, C. B., Bowyer, S. & Werthimer, D., (Bologna: Editrice Compositori), 677 Google Scholar
Korpela, E. J., et al. 2001, Computing in Science and Engineering, 3, 79 CrossRefGoogle Scholar
Werthimer, D. et al. 1997, in Astronomical and Biochemical Origins and the Search for Life in the Universe, ed. Cosmovici, C. B., Bowyer, S. & Werthimer, D., (Bologna: Editrice Compositori), 711 Google Scholar
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