title: Light flashes observed by astronauts on skylab 4.
abstract: Two dedicated light flash observing sessions were conducted by one of the crewmen during the Skylab 4 mission. Analyses of his observations reveal a strong correlation between flash frequency and primary cosmic-ray flux, and an even stronger correlation between flash frequency and the South Atlantic Anomaly (SAA) region of the inner belt trapped radiation. Calculations indicate that an all-proton inner belt probably cannot produce the observed SAA flash rate, and they suggest that there may exist a previously unobserved inner belt flux of multiply charged nuclei.
authors.forename: L S
authors.initials: LS
authors.lastname: Pinsky
authors.forename: W Z
authors.initials: WZ
authors.lastname: Osborne
authors.forename: R A
authors.initials: RA
authors.lastname: Hoffman
authors.forename: J V
authors.initials: JV
authors.lastname: Bailey