Purpose of the flight and payload description
Details of the balloon flight
Balloon launched on: 5/20/1976
Launch site: Columbia Scientific Balloon Facility, Palestine, Texas, US
Balloon launched by: National Scientific Balloon Facility (NSBF)
Balloon manufacturer/size/composition: Zero Pressure Balloon Winzen 612.093 m3 (22.86 microns - Stratofilm)
Flight identification number: 969P
Balloon flight duration (F: time at float only, otherwise total flight time in d:days / h:hours or m:minutes - ): F 40 h
Payload weight: 3011.5 kgs.
(*) Important Note: There is a confusion in the dates published in the papers regarding the date of the balloon flight. After checking the National Balloon Facility Records for the epoch, we concluded that the correct date of the flight was May 20, 1975
External references
- A magnetic spectrometer for cosmic ray studies Nuclear Instruments and Methods Vol.148, Issue 1, Pag. 179
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- A measurement of the absolute flux of cosmic-ray electrons Astrophysical Journal, Part 1, vol. 287, Dec. 15, 1984, p. 622-632
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- Absolute rigidity spectrum of protons and helium nuclei above 10 GV/c NASA. Goddard Space Flight Center 19th Intern. Cosmic Ray Conf., Vol. 2 p 1-3
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- Cosmic ray proton & helium spectra from 5 - 200 GV measured with a magnetic spectrometer 20th International Cosmic Ray Conference, Vol. 1, p. 325 - 328
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- National Scientific Balloon Facility Annual Report FY 1976 National Center for Atmospheric Research, March 1977
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- Observation of cosmic ray positrons from 5 to 25 GeV NASA. Goddard Space Flight Center 19th Intern. Cosmic Ray Conf., Vol. 2 p 374-377
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- Observation of cosmic ray positrons in the region from 5 to 50 GeV Astronomy and Astrophysics, vol. 188, no. 1, Dec. 1987, p. 145-154
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- Relative abundance of antiprotons and antihelium in the primary cosmic radiation Nature, vol. 274, July 13, 1978, p. 137-139
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- Solar modulation of hydrogen and helium cosmic ray nuclei spectra above 400 MeV/Nucleon, from 1976 to 1993 24th International Cosmic Ray Conference, Italy, 1995
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- Solar Modulation of Protons and Alpha Particles at Rigidities of 4-10 Gv/c 16th International Cosmic Ray Conference, Vol. 1. P.249
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- The proton and helium rigidity spectra from 10 to 100 GV 15th International Cosmic Ray Conference, Vol. 11. 1978, p. 155
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