In the table below you will find the records of stratospheric balloons launched from different countries during 1966, which are currently available in StratoCat's database. Each row displays essential information such as the launch base, date and time of launch, and, if known, the mission duration and landing site of the payload. Clicking on the experiment name will offer details about the scientific institutions involved, a summary of the experiment's purpose and results, and other relevant information on the balloon flight, including references and images. Clicking on the arrows at the top and the bottom of the table you can move to other year's tables.
Launch base | Date | Flight Duration | Experiment | Payload landing place or cause of the failure |
---|---|---|---|---|
![]() | 1/5 | --- | ASHCAN | --- No Data --- |
![]() | 1/6 | --- | ASHCAN | --- No Data --- |
![]() | 1/6 | --- | MEASURE ION DENSITIES | --- No Data --- |
![]() | 1/6 | --- | ASHCAN | --- No Data --- |
![]() | 1/7 | --- | ASHCAN | --- No Data --- |
![]() | 1/7 | 1h | MEASURE X-RAY SPECTRA | --- No Data --- |
![]() | 1/10 | 2h | MEASURE ION DENSITIES | --- No Data --- |
![]() | 1/11 | 1 h | COSMIC RAY AND X-RAY SAMPLING | Balloon failure |
![]() | 1/11 | --- | ASHCAN | --- No Data --- |
![]() | 1/11 | --- | ASHCAN | --- No Data --- |
![]() | 1/13 | 10 h 20 m | COSMIC RAY AND X-RAY SAMPLING | 50 mi. N of Memphis, Tennessee, US |
![]() | 1/14 | --- | ASHCAN | --- No Data --- |
![]() | 1/18 | --- | ASHCAN | --- No Data --- |
![]() | 1/20 | --- | ASHCAN | --- No Data --- |
![]() | 1/23 | --- | POLARISCOPE | --- No Data --- |
![]() | 1/25 | 9 h | ALPHA-RADIATION HYGROMETER | --- No Data --- |
![]() | 1/26 | 7h | SPECIAL EMULSION STACK | --- No Data --- |
![]() | 1/27 | --- | ASHCAN | --- No Data --- |
![]() | 1/27 | 5h 25m | RADIOMETER | --- No Data --- |
![]() | 1/27 | 12 h 25 m | ALPHA-RADIATION HYGROMETER | --- No Data --- |
![]() | 2/2 | --- | RADIOMETER | --- No Data --- |
![]() | 2/2 | --- | ASHCAN | --- No Data --- |
![]() | 2/2 | 2 h | STRATOJUMP II (Piantanida) | The gondola landed in a cornfield in Iowa |
![]() | 2/3 | 5h 30m | RADIOMETER | --- No Data --- |
![]() | 2/3 | --- | ASHCAN | --- No Data --- |
![]() | 2/4 | --- | ASHCAN | --- No Data --- |
![]() | 2/4 | 11 h 30 m | SKYTOP PROJECT - INFRARED MAPPING OF THE MOON | 25 miles N of Mineral Wells, Texas, US |
![]() | 2/4 | --- | ASHCAN | --- No Data --- |
![]() | 2/6 | 10 h | IONIZATION SPECTROMETER | 30 miles S of Amarillo, Texas, US |
![]() | 2/8 | --- | ASHCAN | --- No Data --- |
![]() | 2/10 | --- | ASHCAN | --- No Data --- |
![]() | 2/10 | --- | ASHCAN | --- No Data --- |
![]() | 2/12 | 10h | MOON X-RAY MEASUREMENTS | --- No Data --- |
![]() | 2/13 | --- | ASHCAN | --- No Data --- |
![]() | 2/15 | --- | ASHCAN | Balloon failed at 31.000 ft. Payload recovered with damage 10 miles NW of Benanee, Australia |
![]() | 2/16 | --- | POLARISCOPE | --- No Data --- |
![]() | 2/17 | --- | ASHCAN | --- No Data --- |
![]() | 2/17 | 12h 30m | CRAB NEBULA X-RAY MEASUREMENTS | --- No Data --- |
![]() | 2/18 | 9 H | SOLAR X-RAY MEASUREMENTS | --- No Data --- |
![]() | 2/23 | 7 h 20 m | BAL-AST (Balloon Astronomy) | 60 miles NNW of Abilene, Texas, US |
![]() | 2/23 | 3 h | INSTRUMENTATION TEST | --- No Data --- |
![]() | 2/24 | 7 h 20 m | PRIMARY RADIATION MEASUREMENTS | 90 miles SSE of Childress, Texas, US |
![]() | 2/25 | --- | ASHCAN | 22 Nautic Miles NNW of Morgan, Australia |
![]() | 2/25 | 9h 30m | X-RAY BACKGROUND MEASUREMENTS | --- No Data --- |
![]() | 2/27 | --- | ALPHA-RADIATION HYGROMETER | --- No Data --- |
![]() | 3/1 | --- | ASHCAN | Balloon failed at 58.000 ft. |
![]() | 3/2 | --- | ASHCAN | --- No Data --- |
![]() | 3/3 | --- | ASHCAN | --- No Data --- |
![]() | 3/4 | --- | ASHCAN | --- No Data --- |
![]() | 3/4 | --- | ASHCAN | --- No Data --- |
![]() | 3/5 | --- | ASHCAN | --- No Data --- |
![]() | 3/6 | --- | GAMMA RAY TELESCOPE | Aborted flight. Payload destroyed at launch. |
![]() | 3/7 | 7 h 10 m | HUMIDITY MEASUREMENTS | 15 miles N of Lubbock, Texas, US |
![]() | 3/7 | --- | ASHCAN | Balloon failed at 65.000 ft. |
![]() | 3/8 | 3 h 30 m | INFRARED MEASUREMENTS | --- No Data --- |
![]() | 3/10 | --- | ASHCAN | --- No Data --- |
![]() | 3/11 | 30 h | VOR BALLOON LOCATING SYSTEM TEST | --- No Data --- |
![]() | 3/12 | 1 h 10 m | HYPSOMETER CONTROLLED BALLAST SYSTEM TEST | Failure of the balloon at 44.000 ft. |
![]() | 3/15 | --- | ASHCAN | --- No Data --- |
![]() | 3/16 | 48 h | HYPSOMETER CONTROLLED BALLAST SYSTEM TEST | --- No Data --- |
![]() | 3/17 | --- | ASHCAN | --- No Data --- |
![]() | 3/17 | F 6 m | NEUTRON COUNTER | --- No Data --- |
![]() | 3/17 | F 30 m | NEUTRON COUNTER | --- No Data --- |
![]() | 3/18 | --- | NEUTRON COUNTER | --- No Data --- |
![]() | 3/21 | F 45 m | NEUTRON COUNTER | --- No Data --- |
![]() | 3/22 | --- | ASHCAN | Balloon failed at 87.500 ft. |
![]() | 3/24 | --- | ASHCAN | --- No Data --- |
![]() | 3/24 | --- | TEST LAUNCH TECHNIQUES WITH TINY TIM | --- No Data --- |
![]() | 3/25 | --- | TEST LAUNCH TECHNIQUES WITH TINY TIM | --- No Data --- |
![]() | 3/26 | --- | ASHCAN | --- No Data --- |
![]() | 3/28 | --- | ASHCAN | --- No Data --- |
![]() | 3/30 | --- | TEST CAPABILITY OF POLY SCRIM MATERIAL | --- No Data --- |
![]() | 3/30 | --- | ASHCAN | --- No Data --- |
![]() | 3/30 | --- | MER S-IIA BALLOON TEST | Balloon failure |
![]() | 3/31 | 5 h | HEAT CONDUCTIVITY ALTITUDE SENSOR | --- No Data --- |
![]() | 3/31 | --- | X-RAY DETECTOR | --- No Data --- |
![]() | 4/2 | --- | ASHCAN | --- No Data --- |
![]() | 4/2 | --- | X-RAY DETECTOR | --- No Data --- |
![]() | 4/5 | --- | ASHCAN | --- No Data --- |
![]() | 4/5 | --- | ASHCAN | --- No Data --- |
![]() | 4/5 | --- | X-RAY DETECTOR | --- No Data --- |
![]() | 4/6 | --- | ASHCAN | --- No Data --- |
![]() | 4/6 | 5h | GAMMA RAY DETECTOR | --- No Data --- |
![]() | 4/9 | --- | ASHCAN | --- No Data --- |
![]() | 4/14 | 31 h 25 m | PHOTOGRAPHIC SPARK CHAMBER | --- No Data --- |
![]() | 4/14 | --- | ASHCAN | --- No Data --- |
![]() | 4/18 | 32 h 15 m | BALLOON TEST FLIGHT | 40 miles SE of Dayton, Ohio, US |
![]() | 4/19 | --- | ASHCAN | --- No Data --- |
![]() | 4/21 | --- | ASHCAN | --- No Data --- |
![]() | 4/25 | --- | ALPHA-RADIATION HYGROMETER | --- No Data --- |
![]() | 4/26 | 11 h | ELECTRON DETECTOR | --- No Data --- |
![]() | 4/27 | 13 h 30 m | X-RAY DETECTOR | 30 miles SSE of Oklahoma City, Oklahoma, US |
![]() | 4/27 | --- | ASHCAN | --- No Data --- |
![]() | 4/27 | 2h | TELEMETRY TEST FLIGHT | Near Big Springs, Texas, US |
![]() | 4/27 | --- | SPECTROGRAPH | Balloon burst at 10 km. Payload recovered in Eauze, Gers, France |
![]() | 4/27 | --- | ALPHA-RADIATION HYGROMETER | --- No Data --- |
![]() | 5/1 | 1 h 30 m | STRATOJUMP III (Piantanida) | Near Lakefield, Minnesota, US |
![]() | 5/2 | --- | SOLAR OBSERVATION | --- No Data --- |
![]() | 5/4 | --- | ASHCAN | --- No Data --- |
![]() | 5/5 | 7 h 30 m | PAYLOAD UNKNOWN | 10 miles SSE of Tularosa, New Mexico, US |
![]() | 5/6 | 1 h 25 m | BALLOON-BORNE INSTRUMENTATION TEST | --- No Data --- |
![]() | 5/6 | --- | ASHCAN | --- No Data --- |
![]() | 5/8 | 7h 25m | IRIS (InfraRed Interferometer Spectrometer) | 23 miles W of Leona, Texas, US |
![]() | 5/10 | --- | ASHCAN | Balloon failed at 37.200 ft. |
![]() | 5/12 | --- | ASHCAN | --- No Data --- |
![]() | 5/14 | 3h 20m | ATMOSPHERIC WATER VAPOUR MEASUREMENTS | 5 miles W of Buffalo, Texas, US |
![]() | 5/14 | --- | STRATOSCOPE II - SCIENTIFIC FLIGHT # 5 | --- No Data --- |
![]() | 5/16 | --- | TEST FLIGHT | --- No Data --- |
![]() | 5/17 | --- | ASHCAN | --- No Data --- |
![]() | 5/18 | --- | ASHCAN | --- No Data --- |
![]() | 5/21 | F 1 h 34 m | X-RAY DETECTOR | --- No Data --- |
![]() | 5/22 | --- | ASHCAN | --- No Data --- |
![]() | 5/22 | --- | X-RAY DETECTOR | --- No Data --- |
![]() | 5/23 | --- | ASHCAN | --- No Data --- |
![]() | 5/24 | --- | ASHCAN | --- No Data --- |
![]() | 5/25 | 9 h | PAYLOAD UNKNOWN | 15 miles SW of Phoenix, Arizona, US |
![]() | 5/26 | --- | PEPP (Planetary Entry Parachute Program) - TEST FLIGHT | --- No Data --- |
![]() | 5/26 | --- | GROUND IR RADIATION MEASUREMENTS | Payload destroyed at launch. No flight |
![]() | 5/26 | 9h 30m | POLARISCOPE | --- No Data --- |
![]() | 5/26 | --- | GRATING SPECTROMETER | --- No Data --- |
![]() | 5/28 | 7h | SPARK CHAMBER TELESCOPE | --- No Data --- |
![]() | 6/2 | 8 h | GAMMA RADIATION RESEARCH | Balloon failure. Impact 4 miles SW of Riverside, New Mexico, US |
![]() | 6/2 | --- | MICROMETEORITE DUST COLLECTOR | --- No Data --- |
![]() | 6/6 | 8 h | OPTICAL BEACON FOR GEODETIC DETERMINATIONS | --- No Data --- |
![]() | 6/6 | 13 h 30 m | HEAVY PRIMARY COSMIC RADIATION | 7 miles E of Coolidge, Arizona, US |
![]() | 6/6 | --- | X-RAY DETECTOR | --- No Data --- |
![]() | 6/7 | --- | ASHCAN | --- No Data --- |
![]() | 6/8 | 5 h 25 m | MARS PROBE MODEL DROP TEST | --- No Data --- |
![]() | 6/9 | --- | ASHCAN | --- No Data --- |
![]() | 6/10 | 17 h | PRIMARY COSMIC RADIATION SPECTRA AND FLUX | --- No Data --- |
![]() | 6/10 | 19 h | MAGNETIC SPECTROMETER | --- No Data --- |
![]() | 6/10 | 8h 50m | MICROMETEORITE DUST COLLECTOR | --- No Data --- |
![]() | 6/11 | --- | ASHCAN | --- No Data --- |
![]() | 6/12 | 3 h 10 m | GAMMA RAY TELESCOPE | Flight terminated early; power failure in gondola |
![]() | 6/12 | --- | ASHCAN | --- No Data --- |
![]() | 6/13 | 36 h | MINIMUM WIND INVESTIGATION | --- No Data --- |
![]() | 6/14 | --- | ASHCAN | --- No Data --- |
![]() | 6/14 | --- | GAMMA RAY OBSERVATION | Failed mission. Normal ascent to about 8000 ft, then descent; ballasting produced no noticeable effect; beacon antenna did not deploy |
![]() | 6/15 | --- | ASHCAN | --- No Data --- |
![]() | 6/15 | 3 h | OPTICAL BEACON FOR GEODETIC DETERMINATIONS | Balloon failure |
![]() | 6/15 | 17 h 30 m | MAGNETIC SPECTROMETER | --- No Data --- |
![]() | 6/15 | 10 h 25 m | PRIMARY COSMIC RADIATION SPECTRA AND FLUX | --- No Data --- |
![]() | 6/15 | 17 h 25 m | MEASUREMENTS OF SPECTRUM AND FLUX OF HEAVY NUCLEAR PARTICLES | --- No Data --- |
![]() | 6/16 | 7h 30m | GAMMA RAY OBSERVATION | Payload damaged after parachute impact |
![]() | 6/17 | --- | ASHCAN | --- No Data --- |
![]() | 6/17 | 1 h | MINIMUM WIND INVESTIGATION | Balloon failure |
![]() | 6/17 | 7 h | ELECTRON DETECTOR | --- No Data --- |
![]() | 6/20 | 20 h 50 m | PRIMARY COSMIC RADIATION SPECTRA AND FLUX | --- No Data --- |
![]() | 6/21 | 6 h | VOYAGER PATHFINDER BALLOON TEST | --- No Data --- |
![]() | 6/22 | --- | VOYAGER PROBE BALLOON TEST | --- No Data --- |
![]() | 6/22 | 3 h | RADIOSONDE, BALLAST AND REMOTE CONTROL SYSTEM | --- No Data --- |
![]() | 6/22 | 2 h 10 m | MINIMUM WIND INVESTIGATION | Balloon burst at 54.750 ft |
![]() | 6/23 | 1h | MICROMETEORITE DUST COLLECTOR | Collection screen did not deploy; command cut down |
![]() | 6/24 | 3 h | RADIOSONDE, BALLAST AND REMOTE CONTROL SYSTEM | --- No Data --- |
![]() | 6/24 | 30 h | MINIMUM WIND INVESTIGATION | --- No Data --- |
![]() | 6/27 | 3 h 50 m | VERTICAL DISTRIBUTION OF DUST AND OZONE | --- No Data --- |
![]() | 6/27 | 15 h | MEASUREMENTS OF SPECTRUM AND FLUX OF HEAVY NUCLEAR PARTICLES | --- No Data --- |
![]() | 6/27 | 16 h 25 m | MAGNETIC SPECTROMETER | --- No Data --- |
![]() | 6/28 | --- | GRATING SPECTROMETER | --- No Data --- |
![]() | 6/28 | 1 h 45 m | MINIMUM WIND INVESTIGATION | Balloon burst at 47.000 ft |
![]() | 6/30 | 3 h 55 m | VERTICAL DISTRIBUTION OF DUST AND OZONE | --- No Data --- |
![]() | 6/30 | 3 h | BALLOON DESTRUCT TAPE TEST | --- No Data --- |
![]() | 7/1 | 12 h | NUCLEAR EMULSIONS | 4 miles E of Williams AFB, Arizona, US |
![]() | 7/3 | 10 h 25 m | MEASUREMENTS OF SPECTRUM AND FLUX OF HEAVY NUCLEAR PARTICLES | --- No Data --- |
![]() | 7/4 | --- | COSMIC RAY DETECTOR | --- No Data --- |
![]() | 7/5 | --- | SPECTRAL RADIOMETER | --- No Data --- |
![]() | 7/6 | 25 h | STUDY OF CAUSES OF BALLOON BURSTS AT TROPOPAUSE | --- No Data --- |
![]() | 7/6 | --- | TECHNOLOGICAL FLIGHT | --- No Data --- |
![]() | 7/6 | --- | ASHCAN | --- No Data --- |
![]() | 7/6 | 10h 50m | GAMMA RAY SPARK CHAMBER | Scaler or gondola mal function shortly after launch; command cut down 10 min before programmed cut down. |
![]() | 7/6 | --- | COSMIC RAY DETECTOR | --- No Data --- |
![]() | 7/7 | 16 h 25 m | GALACTIC COSMIC RAYS STUDY | --- No Data --- |
![]() | 7/8 | --- | COSMIC RAY DETECTOR | --- No Data --- |
![]() | 7/8 | 4 h 30 m | SPECTRAL RADIOMETER | Near stallion site, White Sands, New Mexico, US |
![]() | 7/9 | 3h 30m | GAMMA RAY TELESCOPE | Flight terminated early; malfunctioning beacon indicated balloon floating at unsatisfactory altitude |
![]() | 7/9 | --- | SPARK CHAMBER | Aborted flight at launch |
![]() | 7/10 | 5h 50m | SPARK CHAMBER | 15 miles W of Pecos, Texas, US |
![]() | 7/10 | --- | COSMIC RAY DETECTOR | --- No Data --- |
![]() | 7/11 | 15 h 30 m | MEASUREMENTS OF SPECTRUM AND FLUX OF HEAVY NUCLEAR PARTICLES | --- No Data --- |
![]() | 7/12 | 7 h 30 m | UV SPECTROPHOTOPOLARIMETER | 20 miles S of Phoenix, Arizona, US |
![]() | 7/12 | --- | ASHCAN | --- No Data --- |
![]() | 7/12 | 8h 45m | NUCLEAR EMULSIONS | --- No Data --- |
![]() | 7/12 | --- | ASHCAN | --- No Data --- |
![]() | 7/13 | 12 h 40 m | GALACTIC COSMIC RAYS STUDY | --- No Data --- |
![]() | 7/13 | --- | ASHCAN | --- No Data --- |
![]() | 7/13 | 20 h | GALACTIC COSMIC RAYS STUDY | --- No Data --- |
![]() | 7/13 | --- | ASHCAN | --- No Data --- |
![]() | 7/14 | 18 h 50 m | MEASUREMENTS OF SPECTRUM AND FLUX OF CHARGED PARTICLES | --- No Data --- |
![]() | 7/14 | --- | ASHCAN | --- No Data --- |
![]() | 7/15 | 2 h 30 m | PARACHUTE AND BALLOON WIRE DESTRUCT TESTS | --- No Data --- |
![]() | 7/15 | 21 h 25 m | MEASUREMENTS OF SPECTRUM AND FLUX OF HEAVY NUCLEAR PARTICLES | --- No Data --- |
![]() | 7/16 | 18 h | FAST NEUTRON DETECTOR | --- No Data --- |
![]() | 7/16 | 11 h 25 m | GALACTIC COSMIC RAYS STUDY | --- No Data --- |
![]() | 7/16 | 21 h | GALACTIC COSMIC RAYS STUDY | --- No Data --- |
![]() | 7/18 | 7 h 30 m | PEPP (Planetary Entry Parachute Program) - TEST FLIGHT | 20 miles S of Casa Grande, Arizona, US |
![]() | 7/18 | 3h 35m | GAMMA RAY SPARK CHAMBER | Flight terminated early to avoid Mexico |
![]() | 7/18 | 7h 40m | GAMMA RAY TELESCOPE | Deteriorating weather conditions forced early termination; main scientific objectives achieved |
![]() | 7/18 | F 1 h 30 m | X-RAY DETECTOR | --- No Data --- |
![]() | 7/20 | --- | ASHCAN | --- No Data --- |
![]() | 7/20 | 1 h | BALLOON DESTRUCT AND UHF RELAY TESTS | --- No Data --- |
![]() | 7/23 | 6h 55m | HAPPE (High Altitude Particle Physics Experiment) | --- No Data --- |
![]() | 7/23 | 4 h 25 m | SUPERPRESSURE BALLOON TEST | Balloon leaker |
![]() | 7/24 | 21 h | FAST NEUTRON DETECTOR | --- No Data --- |
![]() | 7/25 | F 11 h 25 m | ELECTRON DETECTOR | --- No Data --- |
![]() | 7/26 | 15 h 30 m | MEASUREMENTS OF SPECTRUM AND FLUX OF HEAVY NUCLEAR PARTICLES | --- No Data --- |
![]() | 7/26 | 18 h | HODOSCOPE | --- No Data --- |
![]() | 7/26 | 5h | GAMMA RAY SPARK CHAMBER | Flight terminated early to avoid Mexico |
![]() | 7/28 | --- | ASHCAN | --- No Data --- |
![]() | 7/28 | 6h 45m | GAMMA RAY DETECTOR | --- No Data --- |
![]() | 7/29 | --- | SOLAR CELL CALIBRATION | 2 miles SW of Geneva, Minnesota, US |
![]() | 7/29 | --- | FLIGHT TEST | --- No Data --- |
![]() | 7/29 | 106 h | SUPERPRESSURE BALLOON TEST | --- No Data --- |
![]() | 7/30 | 14 h 15 m | HODOSCOPE | --- No Data --- |
![]() | 7/30 | 19 h 15 m | COUNTER TELESCOPE | --- No Data --- |
![]() | 7/31 | 5 h | FAST NEUTRON DETECTOR | --- No Data --- |
![]() | 7/31 | 11h 10m | GAMMA RAY SPARK CHAMBER | --- No Data --- |
![]() | 7/31 | --- | FLIGHT TEST | --- No Data --- |
![]() | 8/2 | 19 h 25 m | FAST NEUTRON DETECTOR | --- No Data --- |
![]() | 8/3 | --- | FLIGHT TEST | --- No Data --- |
![]() | 8/3 | --- | ASHCAN | --- No Data --- |
![]() | 8/4 | --- | ASHCAN | --- No Data --- |
![]() | 8/4 | --- | ASHCAN | --- No Data --- |
![]() | 8/4 | 6h 35m | MEASUREMENTS OF GAMMA RAY FROM STAR REMNANTS | --- No Data --- |
![]() | 8/4 | --- | SOLAR CELL CALIBRATION | 3 miles S of Kenyon, Minnesota, US |
![]() | 8/5 | 3h 20m | DIRECTIONAL NEUTRON DETECTOR | --- No Data --- |
![]() | 8/6 | 15 h 40 m | HODOSCOPE | --- No Data --- |
![]() | 8/6 | 19 h 25 m | GALACTIC COSMIC RAYS STUDY | --- No Data --- |
![]() | 8/6 | 8h 35m | GAMMA RAY MEASUREMENTS | --- No Data --- |
![]() | 8/6 | --- | ASHCAN | --- No Data --- |
![]() | 8/7 | 15 h 15 m | SPARK CHAMBER | At coordinates 59° 49' N / 103º 32' W, Canada |
![]() | 8/7 | 18 h 50 m | COUNTER TELESCOPE | --- No Data --- |
![]() | 8/7 | --- | COSMIC DUST | --- No Data --- |
![]() | 8/8 | 6 h 10 m | ALBEDO MEASUREMENTS + UHF RELAY TESTS | 35 miles NE of Deming, New Mexico, US |
![]() | 8/8 | 7 h 30 m | ELECTRON DETECTOR | --- No Data --- |
![]() | 8/8 | --- | ASHCAN | --- No Data --- |
![]() | 8/9 | --- | ASHCAN | --- No Data --- |
![]() | 8/9 | --- | FLIGHT TEST | --- No Data --- |
![]() | 8/9 | F 3 h | X-RAY DETECTOR | --- No Data --- |
![]() | 8/9 | --- | X-RAYS | --- No Data --- |
![]() | 8/9 | --- | FLIGHT TEST | --- No Data --- |
![]() | 8/10 | 5 h 25 m | GAMMA RAY TELESCOPE | --- No Data --- |
![]() | 8/10 | --- | FLIGHT TEST | --- No Data --- |
![]() | 8/10 | --- | PRIMARY ELECTRONS | --- No Data --- |
![]() | 8/10 | --- | ASHCAN | --- No Data --- |
![]() | 8/12 | 4 h | ELECTRON DETECTOR | --- No Data --- |
![]() | 8/12 | --- | SOLAR CELL CALIBRATION | 3 miles S of St.Francis, Minnesota, US |
![]() | 8/14 | 11h | SESAME (Micrometeorite Collector) | --- No Data --- |
![]() | 8/15 | 5 h 10 m | REFLECTIVITY TEST OF ALUMINIUM FOIL RADAR TARGETS | --- No Data --- |
![]() | 8/15 | 28 h | BALLOON CONTROL TEST | --- No Data --- |
![]() | 8/16 | 50 m | IONIZATION SPECTROMETER | 4 miles S of Hubbard, Texas, US |
![]() | 8/16 | --- | NEUTRON DETECTOR | --- No Data --- |
![]() | 8/16 | 1 h | GAMMA RAY SOURCE DETECTOR CONTROL SYSTEM | Balloon burst at 43.000 ft |
![]() | 8/17 | --- | ASHCAN | --- No Data --- |
![]() | 8/17 | 4 h 5 m | TEST OF RADAR REFLECTIVE MATERIALS | --- No Data --- |
![]() | 8/17 | 6h 15m | RADIOMETER | --- No Data --- |
![]() | 8/17 | 1 h | GAMMA RAY SOURCE DETECTOR CONTROL SYSTEM | Balloon burst at 43.000 ft |
![]() | 8/17 | 6 h 25 m | STUDY OF CAUSES OF BALLOON BURSTS AT TROPOPAUSE | --- No Data --- |
![]() | 8/18 | 2 h | LOW ENERGY PARTICLE DETECTOR | Balloon leveled at 125.000 ft and then descended |
![]() | 8/19 | --- | X-RAY COUNTER | Balloon recovered 1 km N of Lintlaw, Saskatchewan, Canada |
![]() | 8/19 | 1 h | DUST COLLECTOR | Balloon burst at 50.000 ft |
![]() | 8/22 | 30 h 20 m | BALLOON CONTROL TEST | --- No Data --- |
![]() | 8/23 | --- | X-RAY COUNTER | --- No Data --- |
![]() | 8/23 | --- | X-RAY COUNTER | Balloon burst at 73.000 ft. Recovered 10 miles W of The Pas, Manitoba, Canada |
![]() | 8/24 | --- | EXTRATERRESTRIAL DUST SAMPLING | --- No Data --- |
![]() | 8/25 | --- | X-RAY COUNTER | --- No Data --- |
![]() | 8/26 | 12 h 10 m | X-RAY STUDY OF CRAB NEBULA AND OTHER SOURCES | 45 miles NW of Tucson Arizona, US |
![]() | 8/26 | --- | X-RAY COUNTER | Leaker balloon. Ascended just to 47.000 ft |
![]() | 8/26 | --- | TEST OF VISTA DOME DESIGN | --- No Data --- |
![]() | 8/26 | 6h 30m | RADIOMETER | --- No Data --- |
![]() | 8/26 | --- | SOLAR CELL CALIBRATION | 8 miles N of Amery, Winsconsin, US |
![]() | 8/27 | 10 h 30 m | HODOSCOPE | 1 Mile E of Modena, Winsconsin, US |
![]() | 8/28 | --- | ASHCAN | --- No Data --- |
![]() | 8/28 | --- | PATHFINDER | --- No Data --- |
![]() | 8/29 | 3 h 25 m | INFRARED MEASUREMENTS | --- No Data --- |
![]() | 8/29 | --- | X-RAY COUNTER | --- No Data --- |
![]() | 8/29 | 85 h | X-RAY COUNTER | Cut down timer failed. Last observed N of Goosebay, Canada on September 3 |
![]() | 8/29 | --- | X-RAY COUNTER | --- No Data --- |
![]() | 8/29 | --- | X-RAY COUNTER | --- No Data --- |
![]() | 8/29 | --- | PATHFINDER | --- No Data --- |
![]() | 8/29 | --- | PATHFINDER | --- No Data --- |
![]() | 8/30 | --- | X-RAY COUNTER | Balloon burst at 25.000 ft due to severe wind shear |
![]() | 8/30 | 23 h 55 m | HODOSCOPE | 2 km NW of Benson, Minnesota, US |
![]() | 8/30 | 3 h 25 m | PEPP (Planetary Entry Parachute Program) #1 | In the White Sands Missile Range, in the center of the so called "50 mile area", New Mexico, US |
![]() | 9/1 | 37 h 15 m | X-RAY COUNTER | Launch in gusty winds. Received RF signal only |
![]() | 9/1 | 54 h | X-RAY COUNTER | --- No Data --- |
![]() | 9/2 | 11 h 30 m | COSMIC RAY STUDIES | --- No Data --- |
![]() | 9/2 | 20 h | X-RAY COUNTER | --- No Data --- |
![]() | 9/2 | 54 h | X-RAY COUNTER | --- No Data --- |
![]() | 9/2 | 1 h 5 m | GAMMA RAY TELESCOPE | Flight terminated early; damage to telemetry antenna at launch caused telemetry failure |
![]() | 9/2 | --- | FLIGHT TEST | --- No Data --- |
![]() | 9/2 | --- | FLIGHT TEST | --- No Data --- |
![]() | 9/3 | --- | X-RAY FLUX FROM STAR REMNANTS | Balloon ripped at launch |
![]() | 9/3 | ~ 3 h | NEUTRON DETECTOR | Lost contact |
![]() | 9/3 | --- | ATMOSPHERIC ELECTRICITY | --- No Data --- |
![]() | 9/4 | 20 h | X-RAY COUNTER | --- No Data --- |
![]() | 9/4 | 37 h | X-RAY COUNTER | --- No Data --- |
![]() | 9/5 | 54 h | X-RAY COUNTER | --- No Data --- |
![]() | 9/5 | --- | NUCLEAR EMULSIONS | Command and termination timer failure |
![]() | 9/5 | 10h | X-RAY FLUX FROM STAR REMNANTS | --- No Data --- |
![]() | 9/6 | 20 h | X-RAY COUNTER | --- No Data --- |
![]() | 9/6 | --- | X-RAY COUNTER | Unsuccessful flight |
![]() | 9/6 | 3 h | X-RAY COUNTER | Balloon leaker. Recovered near Wabowden, Manitoba, Canada |
![]() | 9/6 | --- | INTERFEROMETER | --- No Data --- |
![]() | 9/7 | 23 h 33 m | HODOSCOPE | 1 km E of Cable, Winsconsin, US |
![]() | 9/7 | 11 | PAYLOAD UNKNOWN | 5 miles W of Douglas Bisbee, Arizona, US |
![]() | 9/7 | 36 h | X-RAY COUNTER | --- No Data --- |
![]() | 9/7 | 4 h | X-RAY COUNTER | Winds picked up at launch and the gondola struck the ground and dragged 100 feet. |
![]() | 9/7 | 20 h | X-RAY COUNTER | Unsuccessful flight |
![]() | 9/7 | --- | ASHCAN | --- No Data --- |
![]() | 9/8 | 37 h | X-RAY COUNTER | --- No Data --- |
![]() | 9/8 | 36 h | X-RAY COUNTER | --- No Data --- |
![]() | 9/8 | 20 h | X-RAY COUNTER | --- No Data --- |
![]() | 9/8 | 13 h 15 m | GAMMA RAY SPARK CHAMBER | --- No Data --- |
![]() | 9/9 | 37 h | X-RAY COUNTER | --- No Data --- |
![]() | 9/12 | --- | ZODIACAL LIGHT STUDIES (?) | --- No Data --- |
![]() | 9/13 | 5h 30m | X-RAY FLUX FROM STAR REMNANTS | Flight terminated early; telemetry link failed; partial data obtained |
![]() | 9/14 | 13 h 30 m | COSMIC RAYS MEASUREMENTS | 15 miles E of Easter Ouster Island, Superior Lake, US |
![]() | 9/14 | 10 h 8 m | COSMIC RAYS MEASUREMENTS | 10 miles NE of Aitkin, Minnesota, US |
![]() | 9/16 | 20 h | X-RAY COUNTER | --- No Data --- |
![]() | 9/16 | 6 h 20 m | SPARK CHAMBER | Payload retrieved in midair by an USAF C-130 plane |
![]() | 9/17 | --- | X-RAY COUNTER | Balloon burst at 17.000 ft |
![]() | 9/18 | 20 h | X-RAY COUNTER | --- No Data --- |
![]() | 9/18 | 6 h 50 m | ASHCAN | --- No Data --- |
![]() | 9/19 | 7 h 30 m | ASHCAN | --- No Data --- |
![]() | 9/19 | 10h 30m | MEASUREMENTS OF X-RAYS | --- No Data --- |
![]() | 9/19 | 3 h 55 m | COSMIC RAYS MEASUREMENTS | 2 miles N of Huntersville, Minnesota, US |
![]() | 9/20 | 7h 35m | X-RAY FLUX FROM STAR REMNANTS | --- No Data --- |
![]() | 9/20 | --- | ATMOSPHERIC ELECTRICITY | --- No Data --- |
![]() | 9/21 | 5 h 15 m | ASHCAN | --- No Data --- |
![]() | 9/21 | 5 h 15 m | INFRARED STUDIES OF ROCK FORMATIONS | --- No Data --- |
![]() | 9/21 | 15h | X-RAY FLUX FROM STAR REMNANTS | --- No Data --- |
![]() | 9/21 | 8 h 10 m | ASHCAN | --- No Data --- |
![]() | 9/21 | --- | FLIGHT TEST | --- No Data --- |
![]() | 9/21 | F 30 min. | SPECTROGRAPH | In Eaunes, Haute-Garonne, France |
![]() | 9/22 | 5 h 15 m | ASHCAN | --- No Data --- |
![]() | 9/22 | --- | ASHCAN | --- No Data --- |
![]() | 9/22 | 3 h | SPARK CHAMBER | Payload retrieved in midair by an USAF C-130 plane |
![]() | 9/22 | 4 h 55 m | ASHCAN | --- No Data --- |
![]() | 9/22 | --- | ATMOSPHERIC ELECTRICITY | --- No Data --- |
![]() | 9/23 | 4 h | ASHCAN | --- No Data --- |
![]() | 9/23 | 3 h 45 m | ASHCAN | --- No Data --- |
![]() | 9/23 | F 4 h | X-RAY DETECTOR | --- No Data --- |
![]() | 9/23 | 6 h 10 m | COSMIC RAYS MEASUREMENTS | 10 miles SE of Drummond, Winsconsin, US |
![]() | 9/24 | 6 h 15 m | ASHCAN | --- No Data --- |
![]() | 9/25 | 3h | TEST OZONE DETECTOR LAUNCH METHOD - PROJECT ECLIPSE | --- No Data --- |
![]() | 9/25 | 1 h | SPARK CHAMBER | Balloon burst at 54.300 ft. Payload lost in the jungle |
![]() | 9/26 | 6 h 15 m | ASHCAN | --- No Data --- |
![]() | 9/26 | --- | ASHCAN | --- No Data --- |
![]() | 9/27 | 1 h 25 m | COSMIC RADIATION MEASUREMENTS | Balloon burst at 64.000 ft |
![]() | 9/27 | --- | ATMOSPHERIC ELECTRICITY | --- No Data --- |
![]() | 9/27 | --- | ZODIACAL LIGHT | --- No Data --- |
![]() | 9/28 | --- | COSMIC DUST | --- No Data --- |
![]() | 9/29 | --- | HEAVY PARTICLES | --- No Data --- |
![]() | 9/29 | --- | SOLAR GAMMA RAYS | --- No Data --- |
![]() | 10/?? | UV TELESCOPE | --- No Data --- | |
![]() | 10/?? | --- | DIFFUSER / SPECTROMETER | --- No Data --- |
![]() | 10/1 | --- | ASHCAN | --- No Data --- |
![]() | 10/2 | --- | FLIGHT TEST | --- No Data --- |
![]() | 10/2 | --- | HUMIDITY (?) | --- No Data --- |
![]() | 10/3 | --- | SOLAR DISK OBSERVATION | --- No Data --- |
![]() | 10/4 | --- | ASHCAN | --- No Data --- |
![]() | 10/5 | 6 h 30 m | EVALUATION OF DACRON REINFORCED POLYETHILENE | --- No Data --- |
![]() | 10/6 | 14 h 30 m | NUCLEAR EMULSIONS - TEXAS I | 14 miles SW of Bracketville, Texas, US |
![]() | 10/6 | --- | SPEKTROSTRATOSKOP LAUNCH TEST | No flight. Launch rehearsal |
![]() | 10/7 | --- | PRIMARY ELECTRONS | --- No Data --- |
![]() | 10/7 | 27 h | TEST OF VOR BALLOON LOCATION SYSTEM AND HF ANTENNA | --- No Data --- |
![]() | 10/12 | 7 h | RAVEN SCRIM BALLOON SYSTEM TEST | --- No Data --- |
![]() | 10/12 | 30 h | TEST OF VOR BALLOON LOCATION SYSTEM AND HF ANTENNA | --- No Data --- |
![]() | 10/13 | 5 h | ASHCAN | --- No Data --- |
![]() | 10/15 | --- | GAMMA RAY TELESCOPE | Balloon burst at 44.800 ft |
![]() | 10/16 | 3 h 50 m | ASHCAN | --- No Data --- |
![]() | 10/16 | 4 h 55 m | GAMMA RAY TELESCOPE | 33 miles N of Jackson, Mississippi, US |
![]() | 10/18 | 23 h | TEST OF VOYAGER DATA LINK SYSTEM AND VOR BALLOON LOCATION SYSTEM | --- No Data --- |
![]() | 10/19 | 1 h | INTERNAL BALLOON PICTURES OF RIP TAPE ACTION | --- No Data --- |
![]() | 10/19 | 9 h | X RAY MEASUREMENTS | --- No Data --- |
![]() | 10/20 | 3 h 50 m | ASHCAN | --- No Data --- |
![]() | 10/20 | 4 h 15 m | ASHCAN | --- No Data --- |
![]() | 10/20 | --- | ASHCAN | --- No Data --- |
![]() | 10/21 | 2 h | INTERNAL BALLOON PICTURES OF RIP TAPE ACTION | --- No Data --- |
![]() | 10/21 | 7 h 5 m | ASHCAN | --- No Data --- |
![]() | 10/22 | 2 h 5 m | ASHCAN | --- No Data --- |
![]() | 10/23 | 7 h 40 m | ASHCAN | --- No Data --- |
![]() | 10/24 | 4 h 30 m | ASHCAN | --- No Data --- |
![]() | 10/24 | 7 h 58 m | MICROBIOLOGICAL SAMPLER - MARK III | Near Merrilan, Wisconsin, US |
![]() | 10/24 | 6 h 14 m | X-RAY DETECTOR | --- No Data --- |
![]() | 10/25 | 27 h | PAYLOAD UNKNOWN | 8 miles W of O'Brien, Texas, US |
![]() | 10/25 | 9 h 20 m | PHOTOGRAPHIC SPARK CHAMBER | --- No Data --- |
![]() | 10/25 | 4 h 15 m | ASHCAN | --- No Data --- |
![]() | 10/25 | 9 h 20 m | UV PHOTO-POLARIMETRY OF THE SUN & SKY | Telemetry link failed. No useful scientific data obtained |
![]() | 10/27 | --- | ASHCAN | --- No Data --- |
![]() | 10/27 | 7 h 10 m | ASHCAN | --- No Data --- |
![]() | 10/27 | 7h 5m | NUCLEAR EMULSIONS | Flight terminated early to insure safe recovery |
![]() | 10/27 | 4 h | BALLOON PERFORMANCE TEST ALTITUDE MEASUREMENTS | --- No Data --- |
![]() | 10/28 | 6 h 40 m | ASHCAN | --- No Data --- |
![]() | 10/28 | --- | ASHCAN | --- No Data --- |
![]() | 10/29 | 4 h 35 m | ASHCAN | --- No Data --- |
![]() | 10/30 | 7 h 45 m | ASHCAN | --- No Data --- |
![]() | 10/31 | --- | SPEKTROSTRATOSKOP TEST FLIGHT | Flight aborted |
![]() | 11/1 | --- | SATURN - Soviet Stratospheric Solar Observatory | --- No Data --- |
![]() | 11/2 | 4 h | BALLOON RECOVERY SYSTEM TEST | --- No Data --- |
![]() | 11/2 | 4 h 30 m | FAR INFRARED TELESCOPE | 3 miles E of Crowley, Louisiana, US |
![]() | 11/3 | 5 h 20 m | ASHCAN | --- No Data --- |
![]() | 11/4 | 2 h | EVALUATION OF THREE LAUNCH METHODS | --- No Data --- |
![]() | 11/10 | 3 h | RIP TAPE AND CAMERA SYSTEM TEST | --- No Data --- |
![]() | 11/11 | 2 h | STUDY OF OZONE VARIATION DURING ECLIPSE | --- No Data --- |
![]() | 11/12 | 2 h 5 m | STUDY OF OZONE VARIATION DURING ECLIPSE | --- No Data --- |
![]() | 11/14 | 5 h | ASHCAN | --- No Data --- |
![]() | 11/14 | --- | STUDY OF OZONE VARIATION DURING ECLIPSE | --- No Data --- |
![]() | 11/14 | --- | STUDY OF OZONE VARIATION DURING ECLIPSE | --- No Data --- |
![]() | 11/15 | 4 h | ASHCAN | --- No Data --- |
![]() | 11/16 | 8h 30m | SESAME (Micrometeorite Collector) | --- No Data --- |
![]() | 11/17 | 3 h | TEST OF DEPLOYMENT SYSTEM | --- No Data --- |
![]() | 11/17 | 7h 20m | SESAME (Micrometeorite Collector) | --- No Data --- |
![]() | 11/18 | 13 h 30 m | X RAY AND COSMIC RAY MEASUREMENTS | 12 mi. SW of Chatsworth, Georgia, US |
![]() | 11/19 | 4 h 45 m | MICROBIOLOGICAL SAMPLER - MARK III | 5 miles E of Boscobel, Wisconsin, US |
![]() | 11/20 | 5 h 45 m | SPEKTROSTRATOSKOP TEST FLIGHT | In Alexandria, Louisiana, US |
![]() | 11/25 | --- | SPARK CHAMBER | --- No Data --- |
![]() | 11/28 | 2 h 15 m | BALLOON DESTRUCTION TEST | --- No Data --- |
![]() | 11/28 | 6 h | GAMMA RAY TELESCOPE | --- No Data --- |
![]() | 11/29 | 4 h | TELLURIC ABSORPTION SPECTRUM STUDY | --- No Data --- |
![]() | 11/29 | --- | DUMMY LOAD FLIGHT TEST | Gound abort due to damage to the safety timer box at launch |
![]() | 11/30 | 5 h 15 m | TEST OF VOR BALLOON LOCATION SYSTEM | --- No Data --- |
![]() | 11/30 | 2 h | EXPOSURE OF NUCLEAR EMULSION PACKAGE | Balloon reached ceiling and began descending. Flight terminated early |
![]() | 11/30 | 2h 35m | EXPOSURE OF NUCLEAR EMULSION PACKAGE | Balloon performance good. Early termination to avoid the Gulf of Mexico |
![]() | 12/8 | 1 h 30 m | ASHCAN | --- No Data --- |
![]() | 12/8 | 5 h 18 m | EVALUATION OF REEL SYSTEM | --- No Data --- |
![]() | 12/9 | 4h 50 m | ASHCAN | --- No Data --- |
![]() | 12/9 | 7 h 45 m | TEST OF VOR BALLOON LOCATION SYSTEM | 10 mi. N of Cross Plains, Texas, US |
![]() | 12/9 | 12 m | DUMMY LOAD FLIGHT TEST | --- No Data --- |
![]() | 12/10 | --- | GAMMA RAY SPARK CHAMBER | --- No Data --- |
![]() | 12/11 | 3 h 30 m | SOLAR GAMMA RAYS | --- No Data --- |
![]() | 12/12 | 3 h 20 m | ASHCAN TEST FLIGHT | --- No Data --- |
![]() | 12/13 | 4 h | BALLOON-BORNE RADIO RELAY SYSTEM TEST | --- No Data --- |
![]() | 12/13 | 2 h | GAMMA RAY TELESCOPE | In Montgomery, Alabama, US |
![]() | 12/14 | 5 h 40 m | ASHCAN | --- No Data --- |
![]() | 12/14 | 5 h 40 m | BALLOON TEST | --- No Data --- |
![]() | 12/15 | --- | X-RAY DETECTOR | --- No Data --- |
![]() | 12/18 | --- | X-RAY DETECTOR | --- No Data --- |
![]() | 12/21 | --- | ASHCAN + OZONE SONDE | 200 km W of Mildura, Australia |
![]() | 12/29 | 1 h | IONIZATION SPECTROMETER | In Logansport, Louisiana, US |
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