SUPERCONDUCTING MAGNET SPECTROMETER

Balloon launched on: 9/25/1975
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 587.882 m3 (20.40 microns - Stratofilm)
Flight identification number: 923P
Balloon flight duration (F: time at float only, otherwise total flight time in d:days / h:hours or m:minutes - ): F 12 h 50 m
Payload weight: 2337 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 September 25, 1975

• A magnetic spectrometer for cosmic ray studies Nuclear Instruments and Methods Vol.148, Issue 1, Pag. 179
• National Scientific Balloon Facility Annual Report FY 1976 National Center for Atmospheric Research, March 1977
• The cosmic-ray antiproton flux - an upper limit near that predicted for secondary production Astrophysical Journal, Part 2 - Letters to the Editor, vol. 217, Nov. 1, 1977, p. L135-L138
• The proton and helium rigidity spectra from 10 to 100 GV 15th International Cosmic Ray Conference, Vol. 11. 1978, p. 155