DATE: 1960 DATE: 1968 - 1982 OBSERVER(S): DRAKE “OZMA” OBSERVER(S): TROITSKII SITE: NRAO SITE: GORKY INSTR. SIZE (M): 26 INSTR. SIZE (M): DIPOLE SEARCH FREQ. (MHz): 1420 - 1420.4 SEARCH FREQ. (MHz): 30 CM, 16 CM, 8 CM & 3 CM FREQUENCY RESOL. (Hz): 100 FREQUENCY RESOL. (Hz): OBJECTS: 2 STARS OBJECTS: ALL SKY SEARCH 2 -22 2 FLUX LIMITS (W/m ): 1 x 10 ** FLUX LIMITS (W/m ): TOTAL HOURS: 200 TOTAL HOURS: CONTINUING REFERENCE: 1 REFERENCE: 23 COMMENTS: Single channel receiver. COMMENTS: Search over all sky visible by single dipole.
DATE: 1964-65 DATE: 1969 - 1983 OBSERVER(S): KARDASHEV & OBSERVER(S): TROITSKII, BONDAR, & SHOLOMITSKII STARODUBTSEV SITE: CRIMEA DEEP SPACE SITE: GORKII, CRIMEA, STATION MURMANSK AND INSTR. SIZE (M): 16 (8 ANTENNAS) PRIMORSKIJ REGIONS SEARCH FREQ. (MHz): 923 INSTR. SIZE (M): DIPOLES FREQUENCY RESOL. (Hz): 10 MHz SEARCH FREQ. (MHz): 1863, 927 & 600 OBJECTS: 2 QUASARS FREQUENCY RESOL. (Hz): 2 -20 OBJECTS: ALL SKY SEARCH FOR FLUX LIMITS (W/m ): 2 x 10 SPORADIC PULSES TOTAL HOURS: 80 2 -22 2 REFERENCE: 19, 42 FLUX LIMITS (W/m ): 10 W/m /Hz COMMENTS: Reported detection of CTA102 TOTAL HOURS: 1200 PER YEAR (ON as possible Type III civilization. AVERAGE) REFERENCE: 4 DATE: 1966 COMMENTS: Network of isotropic detectors: OBSERVER(S): KELLERMAN cross correlation from 2 or 4 SITE: CSIRO sites over 8000 km. INSTR. SIZE (M): 64 SEARCH FREQ. (MHz): MANY BETWEEN 350 & 5000 DATE: 1970 - 1972 FREQUENCY RESOL. (Hz): FULL BANDWIDTH FOR OBSERVER(S): SLYSH, PASHCHENKO, EACH FEED RUDNITSKII, & LEKHT OBJECTS: 1 GALAXY (1934-63) SITE: NANÇAY 2 -18 INSTR. SIZE (M): 40 x 240 FLUX LIMITS (W/m ): 10 SEARCH FREQ. (MHz): 1667 & 1665 TOTAL HOURS: FREQUENCY RESOL. (Hz): 4 kHz REFERENCE: 2 OBJECTS: 5 OH MASERS COMMENTS: No “notch” of ETI origin was 2 detected in galaxy 1934-63. FLUX LIMITS (W/m ): TOTAL HOURS: 2
REFERENCE: 35, 36, 37 DATE: 1968 & 1969 COMMENTS: Searched for deviation from OBSERVER(S): TROITSKII, Gaussian Emission STARODUBTSEV, statistics in 5 OH Maser GERSHTEJIN & RAKHLIN sources that might indicate SITE: ZIMENKIE, USSR transmissions from another INSTR. SIZE (M): 5 civilization. SEARCH FREQ. (MHz): 926 - 928 & 1421 - 1423 FREQUENCY RESOL. (Hz): 13 OBJECTS: 11 STARS + M31 DATE: 1970 - 1972 OBSERVER(S): SLYSH 2 -21 FLUX LIMITS (W/m ): 2 x 10 ** SITE: NANÇAY TOTAL HOURS: 12 INSTR. SIZE (M): 40 x 240 REFERENCE: 3 SEARCH FREQ. (MHz): 1667 & 1665 COMMENTS: 20 filters of width 100 KHz FREQUENCY RESOL. (Hz): 4 kHz divided into 25 channels with F OBJECTS: 10 NEAREST STARS = 2 FLUX LIMITS (W/m ): 13 Hz spaced 4 KHz apart and TOTAL HOURS: stepped in frequency. REFERENCE:
COMMENTS: Looked for signals at OH frequency between observations of OH Masers.
DATE: 1971 & 1972 OBSERVER(S): VERSCHUUR “OZPA” SITE: OSURO SITE: NRAO INSTR. SIZE (M): 53 INSTR. SIZE (M): 91 & 43 SEARCH FREQ. (MHz): 1420.4 REL.TO GAL.CEN. SEARCH FREQ. (MHz): 1419.8 - 1421 & 1410 - 1430 250 kHz FREQUENCY RESOL. (Hz): 490 & 6900 FREQUENCY RESOL. (Hz): 10 & 1 kHz OBJECTS: 9 STARS OBJECTS: ALL SKY SEARCH 2 -24 -23 2 -21 FLUX LIMITS (W/m ): 5 x 10 & 2 x 10 FLUX LIMITS (W/m ): 1.5 x 10 ** TOTAL HOURS: 13 TOTAL HOURS: 100,000 REFERENCE: 5 REFERENCE: 7 COMMENTS: 384 channel correlator COMMENTS: Receiver is tuned to on-line. hydrogen rest frequency relative to Galactic Center DATE: 1972 - 1974 (as a function of direction). OBSERVER(S): KARDASHEV, GINDILIS, POPOV, SOGLASNOV, SPANGENBERG, DATE: 1972 - 1976 STEINBERG ET AL. OBSERVER(S): BRIDLE & FELDMAN SITE: CAUCASUS, PAMIR, “QUI APPELLE?” KAMCHATKA, MARS 7 SITE: ARO SPACECRAFT INSTR. SIZE (M): 46 INSTR. SIZE (M): 38, 60 SEARCH FREQ. (MHz): 22235.08 5 MHz SEARCH FREQ. (MHz): 371, 408, 458 & 535 4 FREQUENCY RESOL. (Hz): 5 MHz FREQUENCY RESOL. (Hz): 3 x 10 OBJECTS: OMNI-DIRECTIONAL OBJECTS: 70 STARS 2 -16 -15 2 -22 FLUX LIMITS (W/m ): 2 x 10 - 7 x 10 FLUX LIMITS (W/m ): 1 x 10 ** TOTAL HOURS: 150 TOTAL HOURS: 140 REFERENCE: 42 REFERENCE: COMMENTS: “Eavesdropping” search for COMMENTS: 70 solar-type stars within 45 pulses. Synchronous light dispersion reception. years have been observed to date. DATE: 1972 OBSERVER(S): KARDASHEV, POPOV, SOGLASNOV ET AL. DATE: 1974 SITE: CRIMEA, RT-22 OBSERVER(S): WISHNIA INSTR. SIZE (M): 22 SITE: “COPERNICUS SATELLITE” SEARCH FREQ. (MHz): 8570 INSTR. SIZE (M): 1 9 FREQUENCY RESOL. (Hz): SEARCH FREQ. (MHz): 3 x 10 OBJECTS: GALACTIC CENTER FREQUENCY RESOL. (Hz): 2 FLUX LIMITS (W/m ): OBJECTS: 3 STARS 2 TOTAL HOURS: FLUX LIMITS (W/m ): REFERENCE: 42 TOTAL HOURS: COMMENTS: Looked for statistical REFERENCE: 8 anomolies in continuum COMMENTS: Search for UV laser lines. emission from galactic center.
DATE: 1973 - 1974
OBSERVER(S): SHVARTSMAN ET AL. DATE: 1972 - 1976 “MANIA” OBSERVER(S): PALMER & ZUCKERMAN SITE: SPECIAL “OZMA II” ASTROPHYSICAL SITE: NRAO OBSERVATORY INSTR. SIZE (M): 91 INSTR. SIZE (M): 0.6 SEARCH FREQ. (MHz): 1413 - 1425 & 1420.1 – SEARCH FREQ. (MHz): 5500 Å 1420.7 -6 4 FREQUENCY RESOL. (Hz): = 10 Å FREQUENCY RESOL. (Hz): 6.4 x 10 & 4,000 OBJECTS: 21 PECULIAR OBJECTS OBJECTS: 674 STARS 2 2 -23 FLUX LIMITS (W/m ): FLUX LIMITS (W/m ): 10 ** TOTAL HOURS: TOTAL HOURS: 500 REFERENCE: 20 REFERENCE: 6 COMMENTS: Optical search for short COMMENTS: 384 channel correlator on- -7 line. pulses of length 3 x 10 to 300 seconds, & narrow DATE: 1973 - 1986 laser lines. Prototype for OBSERVER(S): DIXON, EHMAN, RAUB later system on 6m & KRAUS telescope.
2 -22 FLUX LIMITS (W/m ): 1.15 x 10 DATE: 1978 & On OBSERVER(S): SHVARTSMAN ET AL. “MANIA” TOTAL HOURS: 10 SITE: SPECIAL REFERENCE: ASTROPHYSICAL COMMENTS: Automated survey parasitic OBSERVATORY to radio astronomical INSTR. SIZE (M): 6 observations. SEARCH FREQ. (MHz): 5500 Å -6 FREQUENCY RESOL. (Hz): = 10 Å DATE: 1976 OBJECTS: 93 OBJECTS OBSERVER(S): CLARK, BLACK, CUZZI 2 -4 & TARTER FLUX LIMITS (W/m ): < 3 x 10 OF THE SITE: NRAO OPTICAL FLUX IS INSTR. SIZE (M): 43 VARIABLE IN ANY SEARCH FREQ. (MHz): 8522 - 8523 OBJECT OBSERVED FREQUENCY RESOL. (Hz): 5 TOTAL HOURS: 250 OBJECTS: 4 STARS REFERENCE: 43 2 -24 COMMENTS: Have searched 30 Radio FLUX LIMITS (W/m ): 2 x 10 ** Objects with Continuous TOTAL HOURS: 7 Optical Spectra to date, REFERENCE: looking for optical pulses COMMENTS: VLBI high speed tape form potential Kardashev recorder combined with type II or III civilizations. software direct Fourier DATE: 1975 & 1976 transformation to produce OBSERVER(S): SAGAN & DRAKE extreme frequency SITE: NAIC resolution (non-real time). INSTR. SIZE (M): 305 SEARCH FREQ. (MHz): 1420, 1667 & 2380 (B = 3 MHz) DATE: 1977 FREQUENCY RESOL. (Hz): 1,000 OBSERVER(S): TARTER, BLACK, CUZZI OBJECTS: FOUR GALAXIES & CLARK 2 -25 SITE: NRAO FLUX LIMITS (W/m ): 3 x 10 ** INSTR. SIZE (M): 91 TOTAL HOURS: 100 SEARCH FREQ. (MHz): 1665 - 1667* REFERENCE: 9 FREQUENCY RESOL. (Hz): 5 COMMENTS: Search for type II OBJECTS: 200 STARS civilizations in local group 2 -24 galaxies. FLUX LIMITS (W/m ): 10 ** TOTAL HOURS: 100 DATE: 1975 - 1979 REFERENCE: 11 OBSERVER(S): ISRAEL & DE RUITER COMMENTS: VLBI high speed SITE: WRST recorder combined with INSTR. SIZE (M): 1500 MAX BASELINE software direct Fourier SEARCH FREQ. (MHz): 1415 transformation to produce 6 extreme frequency FREQUENCY RESOL. (Hz): 4 x 10 resolution (non-real time). OBJECTS: 50 STAR FIELDS 2 -23 FLUX LIMITS (W/m ): 2 x 10 ** DATE: 1977 TOTAL HOURS: 400 OBSERVER(S): STULL & DRAKE REFERENCE: SITE: NAIC COMMENTS: Searches of “cleaned” INSTR. SIZE (M): 305 maps prepared for the SEARCH FREQ. (MHz): 1664 - 1668* WSRT background survey FREQUENCY RESOL. (Hz): 0.5 Looked for positional OBJECTS: 6 STARS 2 -26 coincidence between FLUX LIMITS (W/m ): 10 ** residual signals & AGK2 TOTAL HOURS: 10 stars. REFERENCE: 12 COMMENTS: High speed tape DATE: 1976 - 1985 combined with optical OBSERVER(S): BOWYER ET AL. (U.C. processor to produce BERKELEY) “SERENDIP” extreme frequency SITE: HCRO resolution (non-real time). INSTR. SIZE (M): 26 SEARCH FREQ. (MHz): 917 - 937, 1410 - 1430, 1602 - 1605, 1853 - 1873, 5 GHz FREQUENCY RESOL. (Hz): 2 x 500 OBJECTS: ALL SKY SURVEY
DATE: 1978 OBSERVER(S): KNOWLES & SULLIVAN SITE: NAIC DATE: 1977 & On INSTR. SIZE (M): 305 OBSERVER(S): WIELEBINSKI & SEARCH FREQ. (MHz): 130 - 500 (SPOT)* SEIRADAKIS FREQUENCY RESOL. (Hz): 1 SITE: MPIFR OBJECTS: 2 STARS INSTR. SIZE (M): 100 2 -24 SEARCH FREQ. (MHz): 1420 FLUX LIMITS (W/m ): 2 x 10 FREQUENCY RESOL. (Hz): 20,000,000 TOTAL HOURS: 5 OBJECTS: 3 STARS REFERENCE: 15 COMMENTS: Attempted “eavesdropping” 2 -23 FLUX LIMITS (W/m ): 4 x 10 using MKI VLBI tapes as in TOTAL HOURS: 2 Black, et al., 1977. REFERENCE: COMMENTS: Candidate stars DATE: 1978 inserted into ongoing OBSERVER(S): MAKOVETSKIJ, program which searches GINDILIS, ET AL. for pulsed signals with SITE: ZELENCHUKSKAYA, periods of 0.3 to 1.5 sec. RATAN-600 INSTR. SIZE (M): 7.4 x 450 (ONE SECTOR) DATE: 1978 SEARCH FREQ. (MHz): OBSERVER(S): HOROWITZ FREQUENCY RESOL. (Hz): SITE: NAIC OBJECTS: BARNARD'S STAR INSTR. SIZE (M): 305 2 FLUX LIMITS (W/m ): SEARCH FREQ. (MHz): 1420 500 Hz TOTAL HOURS: 6 DAYS FREQUENCY RESOL. (Hz): 0.015 REFERENCE: 38 OBJECTS: 185 STARS COMMENTS: In accordance with “Magic 2 -28 FLUX LIMITS (W/m ): 8 x 10 ** Time” prediction by TOTAL HOURS: 80 Makovetskij for Barnard’s REFERENCE: 13, 25 Star and Nova Cygni 1975, COMMENTS: Assumes that signal signals were searched for frequency was corrected at in September, 1978. the source to arrive at rest in Heliocentric or DATE: 1979 barycentric laboratory OBSERVER(S): COLE & EKERS frame. SITE: CSIRO DATE: 1978 INSTR. SIZE (M): 64 OBSERVER(S): COHEN, MALKAN & SEARCH FREQ. (MHz): 5000 5 MHz & 1 MHz DICKEY 7 6 FREQUENCY RESOL. (Hz): 10 & 10 SITE: NAIC, HRO, CSIRO OBJECTS: NEARBY F, G & K STARS INSTR. SIZE (M): 305, 36, 64 2 -18 SEARCH FREQ. (MHz): 1665 + 1667, 22235.08, FLUX LIMITS (W/m ): 4 x 10 ** 1612.231 TOTAL HOURS: 50 FREQUENCY RESOL. (Hz): 9500, 65000, 4500 REFERENCE: 16 OBJECTS: 25 GLOBULAR CLUSTERS COMMENTS: Simultaneous pulsed events 2 -25 -22 in both 2 MHz & 10 MHz FLUX LIMITS (W/m ): 1.8 x 10 , 1.1 x 10 , 1.5 filters are sought -24 x 10 ** detectors having time TOTAL HOURS: 40, 20, 20 resolution of 4 µ seconds. REFERENCE: 14 COMMENTS: Passive search for Type II DATE: 1979 & III civilizations using OBSERVER(S): FREITAS & VALDES astronomical data originally SITE: LEUSCHNER observed to detect H O & 2 OBSERVATORY, UCB OH masers in globular INSTR. SIZE (M): 0.76 clusters. SEARCH FREQ. (MHz): 5500 Å FREQUENCY RESOL. (Hz): OBJECTS: STABLE “HALO ORBITS” ABOUT L4 & L5 LIBRATION POINTS IN EARTH-MOON SYSTEM 2 FLUX LIMITS (W/m ): m 14 (magnitude) v TOTAL HOURS: 30 REFERENCE: 17 COMMENTS: Attempt to discover evidence of discrete objects (such as interstellar
probes) in stable orbits LEMON about L4, L5 by study of 90 INSTR. SIZE (M): 1.5 photographic plates. SEARCH FREQ. (MHz): 8.5 - 13.5 FREQUENCY RESOL. (Hz): 1 µ OBJECTS: 20 STARS 2 DATE: 1978 - 1980 FLUX LIMITS (W/m ): N MAGNITUDE EXCESS OBSERVER(S): MICHAEL J. HARRIS < 1.7 SITE: INTERPLANETARY TOTAL HOURS: 50 NETWORK DATA REFERENCE: INSTR. SIZE (M): PIONEER VENUS & VENERA COMMENTS: Search for IR excess due to 11 & 12 SPACECRAFT Dyson spheres around SEARCH FREQ. (MHz): 20 keV - 1 MeV solar type stars. Target FREQUENCY RESOL. (Hz): stars were chosen because OBJECTS: 54 GAMMA RAY BURST too faint for spectral type. EVENTS
2 FLUX LIMITS (W/m ): DATE: 1980 to 1981 TOTAL HOURS: OBSERVER(S): SUCHKIN, TOKAREV ET REFERENCE: 44 AL COMMENTS: Attempt to find 3 GRB SITE: NIRFI, GORKII, GAISH, events in a straight line, MOSCOW each having same velocity INSTR. SIZE (M): - (from e e annihilation SEARCH FREQ. (MHz): 9.3 MHz PULSED RADAR line) that could indicate FREQUENCY RESOL. (Hz): 1500 trajectory of an interstellar OBJECTS: L4 & L5 LIBRATION spacecraft. POINTS OF EARTH- MOON SYSTEM 2 DATE: 1979 - 1982 FLUX LIMITS (W/m ): OBSERVER(S): JPL, UCB “SERENDIP” TOTAL HOURS: 20 SITE: DSS 14 REFERENCE: 30 INSTR. SIZE (M): 64 COMMENTS: Radar reflections sought SEARCH FREQ. (MHz): S & X BAND (B=10 MHz) from artifacts in parking FREQUENCY RESOL. (Hz): 2 x (500 Hz) orbits. OBJECTS: APPARENT POSITIONS OF NASA SPACECRAFT DATE: 1981 2 -24 OBSERVER(S): LORD & O'DEA FLUX LIMITS (W/m ): 8 x 10 ** SITE: UNIVERSITY OF TOTAL HOURS: 400 MASSACHUSETTS REFERENCE: 10 INSTR. SIZE (M): 14 COMMENTS: Automated survey parasitic SEARCH FREQ. (MHz): 115000 to spacecraft tracking 8 operations using 512 FREQUENCY RESOL. (Hz): 20,000 125,000 4 x 10 channel auto-correlator & OBJECTS: NORTH GALACTIC 100 channel correlator ROTATION AXIS b = 5˚ micro-processor control. → 90˚ 2 -21 DATE: 1979 - 1981 FLUX LIMITS (W/m ): 10 ** OBSERVER(S): TARTER, CLARK, TOTAL HOURS: 50 DUQUET & LESYNA REFERENCE: SITE: NAIC COMMENTS: Search for signals INSTR. SIZE (M): 305 J=1-0 CO line from a transmitter SEARCH FREQ. (MHz): 1420.4 2 MHz & 1666 2 somewhere along the MHz* Galactic rotation axis. FREQUENCY RESOL. (Hz): 5 & 600 OBJECTS: 200 STARS 2 -25 DATE: 1981 FLUX LIMITS (W/m ): 10 ** OBSERVER(S): TARTER & ISRAEL TOTAL HOURS: 100 SITE: WRST REFERENCE: 21 INSTR. SIZE (M): 3000 MAX BASELINE COMMENTS: Rapid 1-bit sampler & high SEARCH FREQ. (MHz): 1420 speed tape recorder run in 6 6 parallel with 1008 channel FREQUENCY RESOL. (Hz): 4 x 10 , 10 x 10 correlator. Software direct OBJECTS: 85 STAR FIELDS Fourier transformation as 2 -22 -24 FLUX LIMITS (W/m ): 6 x 10 to 6 x 10 in Black, et al., 1977. TOTAL HOURS: 600 REFERENCE: 18 DATE: 1980 COMMENTS: Parasitic search similar to OBSERVER(S): WITTEBORN Israel & De Ruiter using SITE: NASA - U OF A, MT. “uncleaned” maps stored at Groningen & Leiden, &
AGK3 catalog. artifacts (≥ few m in size) in stable orbits near Lagrange points. Studies 137 III aF photographic plates. DATE: 1981 - 1988 OBSERVER(S): BIRAUD & TARTER DATE: 1982 SITE: NANÇAY OBSERVER(S): HOROWITZ, TEAGUE, INSTR. SIZE (M): 40 x 240 LINSCOTT, CHEN & SEARCH FREQ. (MHz): 1420.4 ± 320 kHz, 1665 – BACKUS, “SUITCASE 1667 SETI” FREQUENCY RESOL. (Hz): 48.8 SITE: NAIC OBJECTS: 343 STARS INSTR. SIZE (M): 305 2 -24 SEARCH FREQ. (MHz): 2840.8 (B=4 kHz) & 1420.4 FLUX LIMITS (W/m ): 10 (B=2 TOTAL HOURS: ~600 kHz) REFERENCE: 28 FREQUENCY RESOL. (Hz): 0.03 (1-LINEAR) & 0.03 (2- COMMENTS: Eight level, 1024 channel CIRCULAR) auto-correlator, with OBJECTS: 250 STARS & 150 STARS stepped first LO to extend 2 -26 -28 frequency coverage at 48 FLUX LIMITS (W/m ): 4 x 10 ** & 6 x 10 ** Hz resolution. TOTAL HOURS: 75 DATE: 1981 REFERENCE: 25 OBSERVER(S): SHOSTAK & TARTER COMMENTS: Dual 64K channel real time “SIGNAL” microprocessor based SITE: WRST spectrum analyzer with INSTR. SIZE (M): 3000 MAX BASELINE video archiving & swept LO SEARCH FREQ. (MHz): 1420.4 REL. TO GAL. CEN. B frequency to test “magic = 156 kHz frequencies.” FREQUENCY RESOL. (Hz): 1200 OBJECTS: GALACTIC CENTER DATE: 1982 2 -24 OBSERVER(S): VALLEE & SIMARD- FLUX LIMITS (W/m ): 10 ** NORMANDIN TOTAL HOURS: 4 SITE: ARO REFERENCE: 39 INSTR. SIZE (M): 46 COMMENTS: Use of interferometer to SEARCH FREQ. (MHz): 10,522 search for pulsed signals FREQUENCY RESOL. (Hz): 185 MHz from Galactic Center in OBJECTS: GALACTIC CENTER range of periods from 40 MERIDIAN seconds to 2 hours. 2 -19 DATE: 1981 FLUX LIMITS (W/m ): 10 ** OBSERVER(S): TALENT TOTAL HOURS: 72 SITE: KPNO REFERENCE: 40 INSTR. SIZE (M): 2.1 COMMENTS: Search for strongly SEARCH FREQ. (MHz): 3575 - 5350 Å polarized signals by FREQUENCY RESOL. (Hz): 10 Å mapping field 1/4' x 25' OBJECTS: 3 STARS along l = 0°. 2 FLUX LIMITS (W/m ): DATE: 1983 - 1985 TOTAL HOURS: 0.2 OBSERVER(S): HOROWITZ “SENTINEL” REFERENCE: 31 SITE: OAK RIDGE (HARVARD COMMENTS: Search for enhanced stellar UNIVERSITY) lines of praseodymium, INSTR. SIZE (M): 26 neodymium, zirconium as SEARCH FREQ. (MHz): 1420.40575 & 1667.3590 evidence for dumping of FREQUENCY RESOL. (Hz): 0.03 DUAL CIRCULAR nuclear wastes into stellar (B=2 kHz) atmospheres. OBJECTS: SKY SURVEY DATE: 1981 - 1982 2 -25 OBSERVER(S): VALDES & FREITAS FLUX LIMITS (W/m ): 5 x 10 “SETA” TOTAL HOURS: CONTINUING SITE: KPNO REFERENCE: 25 INSTR. SIZE (M): 0.61 COMMENTS: “Suitcase SETI” as the SEARCH FREQ. (MHz): 5500 Å backend of automated sky FREQUENCY RESOL. (Hz): survey at 2 magic OBJECTS: EARTH-MOON frequencies over a 3 year THROUGH L5, SUN- observing period. EARTH L1, L2 2 FLUX LIMITS (W/m ): 10 ≤ m ≤ 19 (magnitude) v TOTAL HOURS: 70 REFERENCE: 22 COMMENTS: Attempt to see discrete
DATE: 1983 DATE: 1983 - 1984 OBSERVER(S): DAMASHEK OBSERVER(S): CULLERS SITE: NRAO SITE: AMSETI INSTR. SIZE (M): 92 INSTR. SIZE (M): 2 SEARCH FREQ. (MHz): 390 8 SEARCH FREQ. (MHz): ~1420 & 1000 6 FREQUENCY RESOL. (Hz): FREQUENCY RESOL. (Hz): 2 x 10 OBJECTS: OBJECTS: SKY SURVEY (PULSARS) 2 2 -22 FLUX LIMITS (W/m ): FLUX LIMITS (W/m ): 2 x 10 TOTAL HOURS: CONTINUING TOTAL HOURS: 700 REFERENCE: REFERENCE: COMMENTS: Low noise GaAs FETS & COMMENTS: Sixteen MHz sampled at 60 micros with satellite TV Hz; 8 contiguous frequency dishes, by Silicon Valley channels. Search for Hams, with NASA Ames single dispersed pulses & consultation. telemetry (bit stream) signals. DATE: 1983 – 1988 OBSERVER(S): STEPHENS DATE: 1983 SITE: INTERSTELLAR OBSERVER(S): VALDES & FREITAS ELECTRO-MAGNETICS SITE: HCRO INSTITUTE AT HAY INSTR. SIZE (M): 26 RIVER, NWT SEARCH FREQ. (MHz): 1516 2.5 INSTR. SIZE (M): TWO 18m x 18m (28m FREQUENCY RESOL. (Hz): 4.9 & 76 kHz EQUIVALENT) OBJECTS: 80 STARS & 12 NEARBY SEARCH FREQ. (MHz): 1415 – 1425 STARS FREQUENCY RESOL. (Hz): 30 kHz 2 -24 OBJECTS: NORTHERN SKY SURVEY FLUX LIMITS (W/m ): 3 x 10 ** 2 TOTAL HOURS: 100 FLUX LIMITS (W/m ): Tsys~75K REFERENCE: 29 TOTAL HOURS: CONTINUING COMMENTS: Search for radioactive REFERENCE: tritium line from nuclear COMMENTS: Two sixty four foot square fusion by another surplus tropo-scatter dishes technology. combined for use as dedicated amateur SETI DATE: 1983 & On observatory. Coverage is OBSERVER(S): GULKIS 30 → 45 declination. SITE: DSS 43 Discontinued due to lack of INSTR. SIZE (M): 64 funding. SEARCH FREQ. (MHz): 8 GHz & 2380 5 MHz FREQUENCY RESOL. (Hz): 40 kHz DATE: 1984 OBJECTS: PARTIAL SOUTHERN OBSERVER(S): SLYSH SKY SITE: SATELLITE 2 -22 FLUX LIMITS (W/m ): 2 x 10 ** INSTR. SIZE (M): RADIOMETER 3 TOTAL HOURS: 800 & ON SEARCH FREQ. (MHz): 37 x 10 REFERENCE: 24 8 COMMENTS: Sky survey of constant FREQUENCY RESOL. (Hz): 4 x 10 declination strips (3 from – OBJECTS: ALL SKY 3° K BB 28.9 to -34.3 by April ’83) 2 whenever antenna stowed. FLUX LIMITS (W/m ): T/T .01 TOTAL HOURS: 6000 REFERENCE: 26 DATE: 1983 - 1988 COMMENTS: Lack of fluctuations 3 K OBSERVER(S): GRAY background radiation on SITE: SMALL SETI -2 OBSERVATORY angular scales of 10 Strd. INSTR. SIZE (M): 4 rules out optically thick SEARCH FREQ. (MHz): 1419.5 - 1421.5 Dyson spheres radiating FREQUENCY RESOL. (Hz): 40 TO 1 Hz more than 1 LO within 100 ¤ OBJECTS: SKY SURVEY & -27 pc. 2 -22 FLUX LIMITS (W/m ): 1 x 10 ** TOTAL HOURS: CONTINUING REFERENCE: 41 COMMENTS: Dedicated meridian transit search system constructed by amateurs, operated during evenings.
DATE: 1985 — 1995 DATE: 1986 & On OBSERVER(S): HOROWITZ “META OBSERVER(S): COLOMB, MARTIN & SETI” LEMARCHAND SITE: OAKRIDGE (HARVARD SITE: IAR UNIVERSITY) INSTR. SIZE (M): 30 INSTR. SIZE (M): 26 SEARCH FREQ. (MHz): 1415.4057, 1425.4057 & 1667 SEARCH FREQ. (MHz): 1420.4, 1665.4, 1667.3 & FREQUENCY RESOL. (Hz): 2.5 kHz 2840.8 OBJECTS: 78 SOLAR-TYPE STARS FREQUENCY RESOL. (Hz): .05 2 -23 OBJECTS: SKY SURVEY FLUX LIMITS (W/m ): 5 x 10 ** TOTAL HOURS: 320 2 -24 FLUX LIMITS (W/m ): 1.3 x 10 REFERENCE: 32 TOTAL HOURS: CONTINUING COMMENTS: Thirty-four of seventy-eight REFERENCE: 27 Southern Hemisphere solar COMMENTS: Signal Processing type stars have been examined Hardware from at 21cm to date. All stars will “SENTINEL” was be searched at 21 cm & 18 cm replicated 128 times to within 1 yr. 6 DATE: 1986 - 1989 produce 8.4 x 10 channels. Six sequential observations OBSERVER(S): DIXON & BOLINGER of each patch of sky are SITE: OSURO made to cover 2 orthogonal INSTR. SIZE (M): 53 circular polarizations & 3 SEARCH FREQ. (MHz): 1400 - 1700 rest frames (Sun/Earth, FREQUENCY RESOL. (Hz): 100, 10 and 2 kHz Galactic Center, 3 K OBJECTS: ALL SKY SEARCH 2 -22 Background). FLUX LIMITS (W/m ): 1.5 x 10 TOTAL HOURS: 20,000 DATE: 1985 & On REFERENCE: OBSERVER(S): BOWYER, COMMENTS: WERTHEIMER & DATE: 1986 LAMPTON “SERENDIP II” OBSERVER(S): ARKHIPOV SITE: NRAO SITE: INSTR. SIZE (M): 92 INSTR. SIZE (M): SEARCH FREQ. (MHz): 400 TO 3500 SEARCH FREQ. (MHz): 408 MHz FREQUENCY RESOL. (Hz): 1 FREQUENCY RESOL. (Hz): OBJECTS: SKY AREAS OBSERVED BY OBJECTS: HD 21899, HD 100623, HD ASTRONOMERS 187691 & HD 187923 2 -24 2 FLUX LIMITS (W/m ): 4 x 10 FLUX LIMITS (W/m ): TOTAL HOURS: CONTINUING TOTAL HOURS: REFERENCE: 34 REFERENCE: 33 COMMENTS: Automated search that COMMENTS: Search through 408 MHz piggybacks on Molonglo Survey Catalog of radioastronomical Radio Sources found 4 observations. Scans solar type stars within 130" of available 3.5 MHz of radio source position. available IF 65 KHz at a Suggested time, recording events as leakage emission from above threshold for off line orbital processing. industrial processing facility ~1000 AU from star.
DATE: 1986 DATE: 1987 OBSERVER(S): MIRABEL OBSERVER(S): TARTER, KARDASHEV & SITE: NRAO SLYSH INSTR. SIZE (M): 43 SITE: VLA SEARCH FREQ. (MHz): 4829.620 - 4829.776 INSTR. SIZE (M): 26 (9 ANTENNAS) FREQUENCY RESOL. (Hz): 76 SEARCH FREQ. (MHz): 1612.231 OBJECTS: GALACTIC CENTER & 33 FREQUENCY RESOL. (Hz): 6105 NEARBY STARS OBJECTS: G357.3-1.3 2 -25 -24 2 FLUX LIMITS (W/m ): 6 x 10 to 10 ** FLUX LIMITS (W/m ): TOTAL HOURS: 144 TOTAL HOURS: 1 REFERENCE: REFERENCE: COMMENTS: Remote observation (by VLA COMMENTS: Search at H2CO frequency. staff) of IRAS source near Included star HD170493 galactic center to located determine if source could be in front of dark “anti-maser” nearby Dyson sphere. Source cloud. confirmed as OH/IR star.
DATE: 1990 DATE: 1987 OBSERVER(S): BLAIR ET AL. OBSERVER(S): GRAY SITE: CSIRO SITE: OAK RIDGE (HARVARD INSTR. SIZE (M): 64 UNIVERSITY) SEARCH FREQ. (MHz): 4462 MHz 25 kHz INSTR. SIZE (M): 26 FREQUENCY RESOL. (Hz): 100 SEARCH FREQ. (MHz): 1420.405 ± 200 KHz IN OBJECTS: 100 SOLAR-TYPE STARS HELIOCENTRIC, LSR AND VISIBLE ONLY FROM COSMIC BACKGROUND SOUTHERN HEMISPHERE 2 REST FRAMES FLUX LIMITS (W/m ): 2 Jy FREQUENCY RESOL. (Hz): 0.05" TOTAL HOURS: 60 OBJECTS: SKY POSITION REFERENCE: 45 CORRESPONDING TO COMMENTS: Magic frequency search at pi OSURO’s 1977 “WOW” times hydrogen line frequency. SIGNAL 1280 channels were arranged 2 -24 2 FLUX LIMITS (W/m ): 1.5 x 10 W/m PER to CHANNEL sample three reference TOTAL HOURS: 16 frames: REFERENCE: 51 solar barycenter, stellar COMMENTS: Used “META SETI” system barycenter and geocenter. (see Ref. 27) to track position on sky DATE: 1990 - 1995 that produced the “WOW” OBSERVER(S): GRAY signal SITE: SMALL SETI OBSERVATORY at OSURO in 1977. INSTR. SIZE (M): 4 SEARCH FREQ. (MHz): 1419.5 - 1420.5 DATE: 1988 FREQUENCY RESOL. (Hz): 100 → 1 OBSERVER(S): BANIA & ROOD OBJECTS: SITE: NRAO FLUX LIMITS (W/m2): 10-21 INSTR. SIZE (M): 43 TOTAL HOURS: ongoing ~6 hours/night SEARCH FREQ. (MHz): 8665 REFERENCE: 54 FREQUENCY RESOL. (Hz): 305 COMMENTS: Dedicated meridian transit OBJECTS: 24 “VEGA-LIKE” STARS WITH search system constructed by 60 MICRON EXCESSES amateurs, automated (IRAS) operation at night. 2 FLUX LIMITS (W/m ): 1 Jy TOTAL HOURS: 50 DATE: 1990 & On REFERENCE: 46 OBSERVER(S): BETZ COMMENTS: Searching for narrow band, SITE: MT. WILSON obviously artificial, signal at the INSTR. SIZE (M): 1.65 M ELEMENT OF 3 + TOWNES frequency of He spin-flip, IR INTERFEROMETER being radiated by advanced SEARCH FREQ. (MHz): 10 MICRONS civilizations that have FREQUENCY RESOL. (Hz): 3.5 MHz (35 m/s) colonized their planetary OBJECTS: 100 NEARBY SOLAR-TYPE systems. STARS 2 FLUX LIMITS (W/m ): 1 MW TRANSMITTER OUT TO 20 pc DATE: 1989 & On TOTAL HOURS: CONTINUING OBSERVER(S): CHILDERS & DIXON REFERENCE: 56 SITE: OSURO COMMENTS: Search for IR beacons at CO2 INSTR. SIZE (M): 53 laser frequency using SEARCH FREQ. (MHz): 1400 - 1700 narrowband acousto-optical FREQUENCY RESOL. (Hz): 100, 10 and 2 kHz spectrometer. OBJECTS: ALL SKY SEARCH 2 -22 FLUX LIMITS (W/m ): 1.5 x 10 TOTAL HOURS: 60,000 REFERENCE: COMMENTS: Have searched declinations +62 to -22 so far. Continuing to - 36.
DATE: 1990 & On OBJECTS: 25 STARS OBSERVER(S): COLOMB & LEMARCHAND 2 -24 “META II” FLUX LIMITS (W/m ): 5 x 10 TOTAL HOURS: 200 SITE: IAR REFERENCE: 49a INSTR. SIZE (M): 30 COMMENTS: No detection of non-human SEARCH FREQ. (MHz): 1420.4 technology. FREQUENCY RESOL. (Hz): .05 OBJECTS: SKY SURVEY OF SOUTHERN DATE: 1992-93 HEMISPHERE OBSERVER(S): NASA “HRMS” SKY SURVEY 2 SITE: GOLDSTONE, CA FLUX LIMITS (W/m ): INSTR. SIZE (M): 26, 34 TOTAL HOURS: CONTINUING SEARCH FREQ. (MHz): 1700 & 8300 → 8700 REFERENCE: 47 FREQUENCY RESOL. (Hz): 19 COMMENTS: A duplicate of META system OBJECTS: 72 SKY FRAMES AT X-BAND build by Argentinian engineers AND 130 SKY FRAMES under the guidance of Prof. REPEATEDLY MAPPING Horowitz at Harvard and 3 GALACTIC PLANE financed by the Planetary REGIONS Society. Same search AT L-BAND IN SEQUENTIAL strategy as META. CIRCULAR POLARIZATION Simultaneous observations 2 -23 with FLUX LIMITS (W/m ): 9.8 x 10 META over declination range – TOTAL HOURS: 1,386 10 to -30. REFERENCE: 49b COMMENTS: No detection of non-human DATE: 1993 - 1995 technology. OBSERVER(S): LEMARCHAND ET AL. “META II TARGET SEARCH” DATE: 1992 & on SITE: INSTITUTO ARGENTINO DE OBSERVER(S): BOWYER, WERTHIMER & RADIOASTRONOMIA (IAR) DONNELLY “SERENDIP III” INSTR. SIZE (M): 30 SITE: ARECIBO SEARCH FREQ. (MHz): 1420 INSTR. SIZE (M): 305 FREQUENCY RESOL. (Hz): .05 SEARCH FREQ. (MHz): 424 - 436 OBJECTS: TARGETED SEARCH < 8 - FREQUENCY RESOL. (Hz): 0.6 10° OBJECTS: SURVEY OF 30% OF SKY 2 -24 VISIBLE FROM ARECIBO FLUX LIMITS (W/m ): 10 2 -25 TOTAL HOURS: 290 FLUX LIMITS (W/m ): 5 x 10 REFERENCE: 58 TOTAL HOURS: CONTINUING COMMENTS: All * < 5 pc and solar type * → REFERENCE: 50 50 COMMENTS: 4 million channels are under ly yr. 80 stars total. observation. Commensal search DATE: 1990 occurring at twice sidereal rate OBSERVER(S): GRAY in SITE: OAK RIDGE (HARVARD backwards direction while radio UNIVERSITY) astronomers track targets INSTR. SIZE (M): 26 using SEARCH FREQ. (MHz): 1420.4 MHz RELATIVE TO the feeds and receivers on GALACTIC STANDARD OF carriagehouse 1.
REST 200 kHz FREQUENCY RESOL. (Hz): .05 OBJECTS: M31 AND M33 DATE: 1993 2 OBSERVER(S): STEFFES & DeBOER FLUX LIMITS (W/m ): SITE: NRAO/TUCSON TOTAL HOURS: 50 INSTR. SIZE (M): 12 REFERENCE: 3 COMMENTS: Long integrations (5 hours per SEARCH FREQ. (MHz): 203 x 10 11 FREQUENCY RESOL. (Hz): 32 HPBW) on 10 stars at once, OBJECTS: 40 STARS + 3 LOCATIONS looking for low duty cycle NEAR GALACTIC CENTER signals. 2 -19 FLUX LIMITS (W/m ): 2.3 x 10 DATE: 1992-93 TOTAL HOURS: 25 OBSERVER(S): NASA “HRMS” TARGETED REFERENCE: 48 SEARCH COMMENTS: No artificial signals detected SITE: ARECIBO, PR near INSTR. SIZE (M): 305 positronium line. SEARCH FREQ. (MHz): 1300 - 2400 FREQUENCY RESOL. (Hz): 1, 7, 28 simultaneously, dual circular polarization
OBJECTS: NEARBY SOLAR-TYPE DATE: 1993 STARS 2 OBSERVER(S): JUGAKU, NOGUCHI & FLUX LIMITS (W/m ): Transmitters with peak NISHIMURA 18 SITE: INFRARED TELESCOPE OF instantaneous power > 10 W INSTITUTE OF SPACE AND TOTAL HOURS: Ongoing ASTRONAUTICAL REFERENCE: 70. SCIENCE, JAPAN AND COMMENTS: Broadband optical search for INFRARED TELESCOPE AT short pulses (~ 1 nanosecond) XINGLONG STATION OF THE that instantaneously BEIJING ASTRONOMICAL outshine the host star. OBSERVATORY DATE: 1995 INSTR. SIZE (M): 1.3 and 1.26 OBSERVER(S): STEFFES & DeBOER SEARCH FREQ. (MHz): K band 2.2 and IRAS 12 SITE: NRAO/TUCSON micron INSTR. SIZE (M): 12 flux 3 FREQUENCY RESOL. (Hz): SEARCH FREQ. (MHz): 203 x 10 OBJECTS: 180 SOLAR-TYPE STARS FREQUENCY RESOL. (Hz): 32 2 OBJECTS: 40 STARS + 3 LOCATIONS FLUX LIMITS (W/m ): NEAR GALACTIC CENTER TOTAL HOURS: 2 -19 REFERENCE: 57 FLUX LIMITS (W/m ): 2.3 x 10 COMMENTS: Searched for 12 excess TOTAL HOURS: 25 radiation from IRAS catalog REFERENCE: 48 stars COMMENTS: No artificial signals detected by using K-[12] color index in near attempt to find Dyson Spheres. positronium line. DATE: 1994 DATE: 1995 OBSERVER(S): MAUERSBERGER, WILSON, OBSERVER(S): SETI INSTITUTE PROJECT ROOD, BANIA, HEIN & PHOENIX LINHART SITE: ATNF/PARKES and MOPRA SITE: IRAM/PICO VELETA INSTR. SIZE (M): 64 and 22 INSTR. SIZE (M): 30 SEARCH FREQ. (MHz): 1200 - 3000 SEARCH FREQ. (MHz): 203000 FREQUENCY RESOL. (Hz): 1 FREQUENCY RESOL. (Hz): 1 MHz and 9.7 kHz OBJECTS: 206 stars, 1200 - 1750 MHz OBJECTS: 16 STARS + GALACTIC 105 stars, 1750 - 3000 MHz CENTER 2 -25 FLUX LIMITS (W/m ): 1.32 x 10 for half of 1750 – 2 15 FLUX LIMITS (W/m ): 0.2 - 20 x 10 W EIRP 3000 MHz observations TOTAL HOURS: ~5 -25 REFERENCE: 55 1.82 x 10 for all other COMMENTS: Search at Positronium line observations towards nearby stars and stars TOTAL HOURS: 2600 with IR excess that might be REFERENCE: 52, 53 Dyson spheres. COMMENTS: Immediate two-site, pseudo- interferometric follow-up DATE: 1995 observations of candidate OBSERVER(S): GRAY signals. Targets were solar- SITE: NRAO/VLA type INSTR. SIZE (M): 27-element array of 26m stars visible only from southern antennas hemisphere. No detection of SEARCH FREQ. (MHz): 1420 non-human technology. FREQUENCY RESOL. (Hz): 6104 (B = 781 kHz) & 381 (B = 195 kHz) OBJECTS: OSU “WOW” LOCALE DATE: 1995 2 OBSERVERS: TE LINTEL HEKKERT AND FLUX LIMITS (W/m ): 10 & 100 mJy/beam/channel TARTER (PHOENIX TOTAL HOURS: 4 COOPERATIVE REFERENCE: SCIENCE) COMMENTS: Search of the OSU “WOW” SITE: ATNF/PARKES and MOPRA locale with 4 arcsec INSTR. SIZE (M): 64 and 22 synthesized SEARCH FREQ. (MHz): 1200 to 3000 beam. FREQUENCY RESOL. (Hz): 1 OBJECTS: 4 potential Dyson Spheres DATE: 1995 & on 2 -25 OBSERVER(S): KINGSLEY FLUX LIMITS (W/m ): 1.9 x 10 SITE: COLUMBUS OPTICAL SETI TOTAL HOURS: 48 OBSERVATORY, OHIO REFERENCE: INSTR. SIZE (M): 0.25 COMMENTS: Candidate Dyson Sphere SEARCH FREQ. (MHz): 0.55 microns selection criteria: IRAS PSC FREQUENCY RESOL. (Hz): sources with temperatures from 300-500K, that were not identified in OH/IR or CO(1-0)
surveys, and had galactic TOTAL HOURS: 48 latitudes > 5. REFERENCE: 61 COMMENTS: “Magic Frequency” search at DATE: 1995 *HI, e*OH, 2*HI, e*(OH + 3 OBSERVERS: SHOSTAK, EKERS, AND H), He VAILE (PHOENIX COOPERATIVE DATE: 1995 - 1998 SCIENCE) OBSERVERS: BROWN, KLEIN & DIXON SITE: ATNF/PARKES SITE: OSURO INSTR. SIZE (M): 64 INSTR. SIZE (M): 53 SEARCH FREQ. (MHz): 1200-1750 SEARCH FREQ. (MHz): 1423 +/- 1.25 FREQUENCY RESOL. (Hz): 1 FREQUENCY RESOL. (Hz): 0.6 OBJECTS: 3 fields in the SMC, OBJECTS: ALL SKY SEARCH 2 -25 2 FLUX LIMITS (W/m ): 1.9 x10 FLUX LIMITS (W/m ): Unknown as yet TOTAL HOURS: 24 TOTAL HOURS: 5,000 REFERENCE: 59 REFERENCE: 7 COMMENTS: Using SERENDIP processor. COMMENTS: Search of > 10 stars Have searched declinations +8 contained within the three to fields of the SMC. Limit on -36. Program ended when detectable transmitters of OSU 18 sold observatory site to golf
1.5x10 W EIRP. course developer.
DATE: 1995 OBSERVERS: SULLIVAN, WELLINGTON, DATE: 1995 -1999 SHOSTAK, BACKUS, AND OBSERVERS: HOROWITZ ET AL. (BETA) CORDES (PHOENIX SITE: OAK RIDGE OBSERVATORY COOPERATIVE SCIENCE) INSTR. SIZE (M): 26 SITE: ATNF/PARKES SEARCH FREQ. (MHz): 1400 to 1720 INSTR. SIZE (M): 64 FREQUENCY RESOL. (Hz): 0.5 SEARCH FREQ. (MHz): 1420 +/- 5 OBJECTS: Sky Survey from -30 to + 60 FREQUENCY RESOL. (Hz): 1 declination OBJECTS: Galactic Center and 5 high 2 strip FLUX LIMITS (W/m ): +/-15 longitude along Galactic TOTAL HOURS: Suspended Plane REFERENCE: 62 COMMENTS: Waterhole search, using dual- 2 -25 FLUX LIMITS (W/m ): 1.5 - 10 x 10 beams and omni antenna to TOTAL HOURS: 48 discriminate against RFI. REFERENCE: 60 Project COMMENTS: Multiple 30-second BETA is follow-on to META. observations Project interrupted when wind of strip along Galactic Plane blew antenna off its mount. and the Galactic Center, Repairs are under way looking for repetitive signals.
DATE: 1995 DATE: 1996 - 1998 OBSERVERS: NORRIS (PHOENIX OBSERVERS: TILGNER, HEINRICHSEN, COOPERATIVE SCIENCE) KRUGER, PACHER, SITE: ATNF/PARKES and MOPRA WALKER, INSTR. SIZE (M): 64 and 22 WOLSTENCROFT SEARCH FREQ. (MHz): 1200 to 3000 SITE: ISO (Infrared Space FREQUENCY RESOL. (Hz): 1 Observatory) satellite, OBJECTS: Galactic Center ISOPHOT 2 -25 photopolarimeter FLUX LIMITS (W/m ): 1.3 x 10 INSTR. SIZE (M): 0.6 TOTAL HOURS: 24 SEARCH FREQ. (MHz): 3 - 100 microns REFERENCE: FREQUENCY RESOL. (Hz): 0.2 microns (3 micron filter COMMENTS: Galactic Center searched for band) 51 microns (90 micron beacon. filter band) DATE: 1995 OBJECTS: 6 solar-type stars and 1 OBSERVERS: ZADNIK ET AL. (PHOENIX infrared-excess target star COOPERATIVE SCIENCE) 2 -29 SITE: ATNF/PARKES FLUX LIMITS (W/m ): Approximately 30 - 90 x10 INSTR. SIZE (M): 64 (S/N = 10) SEARCH FREQ. (MHz): 4462, 4532, 8295, 8393, 8666 TOTAL HOURS: 1.3 hours (guaranteed FREQUENCY RESOL. (Hz): 1 schedule) OBJECTS: 49 stars closer than 11.5 pc REFERENCE: 63 2 COMMENTS: Search for astro-engineering FLUX LIMITS (W/m ): 3.5 and 5.0 Jy
products like Dyson Spheres FREQUENCY RESOL. (Hz): and rings by separation of their OBJECTS: 24 Nearby stars Infrared spectra from that of 2 FLUX LIMITS (W/m ): the host star. TOTAL HOURS: REFERENCE: DATE: 1996 COMMENTS: Search for microsecond laser OBSERVERS: BIRAUD AND AIRIEAU pulses. SITE: NANÇAY OBSERVATORY INSTR. SIZE (M): 40 x 240 SEARCH FREQ. (MHz): 1420 +/- 0.3 and 1660 +/- 2.2 DATE: 1996-1998 FREQUENCY RESOL. (Hz): 50 OBSERVER(S): SETI Institute PROJECT OBJECTS: 4 stars with giant planets (51 PHOENIX Peg, 47 UMa, 70 Vir, Gl 229) SITE: NRAO and Woodbury, GA 2 -24 FLUX LIMITS (W/m ): 1 x 10 TOTAL HOURS: 40 hours INSTR. SIZE (M): 43m and 30m REFERENCE: SEARCH FREQ. (MHz): 1200 – 3000 dual pol COMMENTS: Search of newly discovered FREQUENCY RESOL. (Hz): 1 extrasolar planetary systems OBJECTS: 195 stars 2 using observing protocol from FLUX LIMITS (W/m ): 1.3x10-25 Biraud and Tarter 1981-1988 TOTAL HOURS: 4200 SETI program at Nançay. REFERENCE: 65 COMMENTS : Longer observations provided DATE: 1996 AND ON same sensitivity as achieved OBSERVERS: SETI LEAGUE PROJECT Australia. ARGUS SITE: MULTIPLE SITES WORLD- WIDE (CURRENTLY ~100) DATE: 1998 - ON INSTR. SIZE (M): ~ 3 (satellite TV dishes) OBSERVER(S): SETI Institute Project SEARCH FREQ. (MHz): 1420 - 1720 (in 12 kHz steps) Phoenix FREQUENCY RESOL. (Hz): 1 SITE: Arecibo and Jodrell Bank OBJECTS: All sky INSTR. SIZE (M): 305m and 76m 2 -22 FLUX LIMITS (W/m ): 7 x 10 SEARCH FREQ. (MHz): 1200 to 3000 dual pol TOTAL HOURS: Ongoing FREQUENCY RESOL. (Hz): 1 REFERENCE: OBJECTS: 600 nearby stars 2 COMMENTS: Plan to organize up to 5000 FLUX LIMITS (W/m ): radio amateurs to provide TOTAL HOURS: 1300 hours to date continuous sky coverage for REFERENCE: 66 strong transient signals using COMMENTS: systems that can be bought
and built by individuals. SETI DATE: 1998 - ON League currently has 1180 OBSERVER(S): SETI Australia Southern members running 95 sites. SERENDIP SITE: Parkes DATE: 1996 AND ON INSTR. SIZE (M): 64m OBSERVERS: WERTHIMER ET AL. SEARCH FREQ. (MHz): 1420.405 +/- 8.82 (SERENDIP IV) FREQUENCY RESOL. (Hz): .6 SITE: ARECIBO OBJECTS: southern sky INSTR. SIZE (M): 305 2 SEARCH FREQ. (MHz): 1420 +/- 50 FLUX LIMITS (W/m ): FREQUENCY RESOL. (Hz): 0.6 TOTAL HOURS: ongoing OBJECTS: Survey of 30% of sky visible REFERENCE: 67 from Arecibo COMMENTS: Comensal SERENDIP-like search that uses 2 out of 13 2 -24 FLUX LIMITS (W/m ): 5 x10 beams TOTAL HOURS: ongoing REFERENCE: 64 DATE: 1998- ON COMMENTS: Commensal search occurring OBSERVER(S): Werthimer at twice sidereal rate in SITE: Leuschner Observatory backwards direction while radio INSTR. SIZE (M): 0.75 astronomers track targets SEARCH FREQ. (MHz): .55 microns (optical) using Gregorian system. FREQUENCY RESOL. (Hz): OBJECTS: solar-type stars DATE: 1996 2 FLUX LIMITS (W/m ): OBSERVER(S): LOCKETT, BLAIR & ZADNIK TOTAL HOURS: ongoing SITE: PERTH OPTICAL REFERENCE: 71 OBSERVATORY COMMENTS: Optical search that uses two INSTR. SIZE (M): 1 high time resolution 8 SEARCH FREQ. (MHz): 5.24 X 10 = 572 NM
photodetectors in coincidence 2 FLUX LIMITS (W/m ): to look for nanosecond pulses. TOTAL HOURS: REFERENCE: COMMENTS :
DATE:
OBSERVER(S): SITE: DATE: 1999 INSTR. SIZE (M): SEARCH FREQ. (MHz): OBSERVER(S): WERTHIMER AND FREQUENCY RESOL. (Hz): ANDERSON (SETI@HOME) OBJECTS: SITE: ARECIBO 2 INSTR. SIZE (M): 305 FLUX LIMITS (W/m ): SEARCH FREQ. (MHz): 1420.405 +/- 1.25 MHz TOTAL HOURS: FREQUENCY RESOL. (Hz): 0.6 Hz REFERENCE: OBJECTS: Data taken from SERENDIP IV COMMENTS : – sky visible from Arecibo DATE: 2 FLUX LIMITS (W/m ): OBSERVER(S): TOTAL HOURS: ongoing SITE: REFERENCE: 68 INSTR. SIZE (M): COMMENTS : Hugely successful experiment SEARCH FREQ. (MHz): in distributed computing. More FREQUENCY RESOL. (Hz): sophisticated processing of a OBJECTS: 2 fraction of SERENDI IV data FLUX LIMITS (W/m ): done by idle CPU cycles at TOTAL HOURS: home. REFERENCE: COMMENTS :
DATE: 2000 OBSERVER(S): MONTEBUGNOLI (SETItalia) SITE: Medicina INSTR. SIZE (M): 32 SEARCH FREQ. (MHz): 1415- 1425 and 4255-4265
FREQUENCY RESOL. (Hz): 0.6 OBJECTS: northern sky 2 FLUX LIMITS (W/m ): TOTAL HOURS: ongoing REFERENCE: 69 COMMENTS : Commensal sky survey using Medicina telescope and SERENDIP signal processing boards.
DATE: 1998 – ON OBSERVER(S): Horowitz et al. Harvard Optical SETI SITE: Oak Ridge Observatory INSTR. SIZE (M): 61 inches SEARCH FREQ. (MHz): 0.55 microns (optical) FREQUENCY RESOL. (Hz): OBJECTS: 2000 solar-type stars 2 FLUX LIMITS (W/m ): TOTAL HOURS: ongoing REFERENCE: 72 COMMENTS : Search for nanosecond laser pulses, with
DATE: OBSERVER(S): SITE: INSTR. SIZE (M): SEARCH FREQ. (MHz): FREQUENCY RESOL. (Hz): OBJECTS:
REFERENCES 24. KUIPER, T. and GULKIS, S., The Planetary Report, 3, p. 17 (1983).
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SITE ABBREVIATIONS
ARO Algonquin Radio Observatory in Ontario, Canada ATNF/PARKES Australia Telescope National Facility in Parkes, New South Wales, Australia CSIRO Commonwealth Scientific and Industrial Research Organization in Epping, New South Wales, Australia HCRO Hat Creek Radio Observatory in Castel, California HRO Haystack Radio Observatory in Westford, Massachusetts IAR Instituto Argentino de Radioastronomia in Villa Elisa, Argentina KPNO Kitt Peak National Observatory in Tucson, Arizona MPIFR Max Planck Institut für Radioastronomie in Effelesberg, West Germany NAIC National Astronomy and Ionospheric Center – Arecibo Observatory in Arecibo, Puerto Rico NANÇAY Observatoire de Nançay in Nançay, France NASA Deep Space Network (DSN) DSS 14 in Goldstone, California DSS 43 in Tidbinbilla, Australia NRAO National Radio Astronomy Observatory in Green Bank, West Virginia, Tucson, Arizona, and Soccorro, New Mexico OSURO Ohio State University Radio Observatory in Columbus, Ohio SARA Society for Amateur Radio Astronomers U. MASS Five College Radio Astronomy Observatory in Amherst, Massachussetts VLA Very Large Array in Socorro, New Mexico WSRT Westerbork Synthesis Radio Telescope in Westerbork, The Netherlands