Radio SETI List

This is a list containing the SETI searches looking for signals in the Radio part of the EM spectrum.  This list contains the first SETI observations written in the 1960s up to present day searches being conducted by teams all over the world.  To see the bibliographic information, click on the title of the search you're interested in.  

Title Date Observers Site Objects Instrument Size (m) Flux Limit (W/m^2) Search Frequency (MHz) Frequency Resolution Hours Observed Link
Project OZMA 1960 DRAKE F. NRAO 2 STARS 26 1 x 10-22 1420-1420.4 MHz 100 Hz 200 Hr.
Transmission of Information by Extraterrestrial Civilizations 1964-1965 KARDASHEV , SHOLOMITSKII CRIMEA DEEP SPACE STATION 2 QUASARS 16m (8 ANTENNAS) 2 x 10-20 923 10 x 106 Hz 80 Hr
The Radio Source 1934-63 1966 KELLERMAN CSIRO 1 GALAXY (1934-63) 64 1 X 10-18 MANY BETWEEN 350 & 5000 FULL BANDWIDTH FOR EACH FEED
Search for Monochromatic 927-MHz Radio Emission from Nearby Stars 1968-1969 TROITSKII, STARODUBTSEV, GERSHTEJIN ZIMENKIE, USSR 11 STARS 5 2 x 10-21 926-928, 1421 - 1423 13 Hz 12 Hr.
The Search for Sporadic Radio Emission from Space 1969-1983 TROITSKII, BONDAR, STARODUBTSEV GORKII, CRIMEA, MURMANSK AND PRIMORSKIJ REGIONS ALL SKY SEARCH FOR SPORADIC PULSES DIPOLES 10-22 W/m2/Hz 1863, 927, 600 1200 PER YEAR (ON AVERAGE)
Measurement of One-Dimensional Function of Distribution for Signals from Galactic Sources 1970-1972 SLYSH, PASHCHENKO, RUDNITSKII NANÇAY 5 OH MASERS (40 x 240m) 1667, 1665 4000 Hz 2 Hr.
A search for narrow band 21-cm wavelength signals from ten nearby stars 1971-1972 VERSCHUUR NRAO 9 STARS 91, 43 5 x 10-24;2 x 10-23 1419.8-1421, 1410-1430 490 Hz, 6900 Hz 13 Hr
SETI investigations in the USSR 1972 KARDASHEV , POPOV, SOGLASNOV CRIMEA, RT-22 GALACTIC CENTER 22 8570
SETI Investigations in the USSR - 2 1972-1974 KARDASHEV , GINDILIS, POPOV CAUCASUS, PAMIR, KAMCHATKA, MARS 7 SPACECRAFT OMNI-DIRECTIONAL 38, 60 2 x 10-16 -;7 x 10-15 371, 408, 458, 535 5 x 106 Hz 150 hr.
Qui Appelle? 1972-1976 BRIDLE , FELDMAN ARO 70 STARS 46 10-22 22230.08-22240.08 3 x 104 Hz 140 Hr.
OZMA Revisited(Page 26) 1972-1976 PALMER , ZUCKERMAN NRAO 674 STARS 91 10-23 1413-1425, 1420.1-1420.7 6.4 x 104 Hz, 4000 Hz 500 Hr.
We Wait and Wonder 1973-1986 DIXON, EHMAN, RAUB OSURO ALL SKY SEARCH 53 1.5 x 10-21 1420.15-1420.65 10 Hz, 1000 Hz 100000
The Ohio Sky Surveys and other Surveys 1973-1998 KRAUS J. OSURO ALL SKY SEARCH 53 1.5 x 10-21 1421.75-1424.25 0.6 Hz, 100 Hz, 10 Hz 5 Hr.
Search for UV Laser Lines with Copernicus 1974 WISHNIA COPERNICUS SATELLITE 3 STARS 1 3 x 109
A high-sensitivity search for extraterrestrial intelligence at λ18 CM 1977 TARTER, BLACK, CUZZI NRAO 200 STARS 91 1.1 x 10-23 1664-1668 0.5 Hz 100
The Tantallizing "WOW!" Signal 1977 KRAUS J. OSURO RA:19h 25m 12s or 19h 22m 22s Dec: -27 (deg) 3' 20'' (1950) 109.7 m SNR ranges from 0-30 1420.3556 ~70 seconds
A passive SETI in globular clusters at the hydroxyl and water lines 1978 COHEN, MALKAN , DICKEY NAIC, HRO, CSIRO 25 GLOBULAR CLUSTERS 305, 36, 64 1.8 x 10-25;1.1 x 10-22;1.5 x 10-24 1665, 1667, 22235.08, 1612.231 9500 Hz, 65000 Hz, 4500 Hz 40 Hr., 20 Hr., 20 Hr.
Eavesdropping: The Radio Signature of the Earth 1978 KNOWLES , SULLIVAN NAIC 2 STARS 305 2 x 10-24 130-500 1 Hz 5 Hr
Simultaneous search for Pulsed Events 1979 COLE , EKERS CSIRO NEARBY F, G & K STARS 64 4 x 10-18 4995-5005, 4999-5001 107 Hz, 106 Hz 50 hr.
Recent SETI observations at Arecibo 1979-1981 TARTER, CLARK, DUQUET NAIC 200 STARS 305 1 x 10-25 1418.4-1422.4, 1664-1668 5 Hz, 600 Hz 100