The International Sun-Earth Explorer (ISEE) 1 and 2 Low Energy Proton and Electron Differential Energy Analyzer (LEPEDEA) Spectrograms are cataloged here for 1977 to 1981 by year and quarter-year sequences of DOY.
1977/ 1978/ 1979/ 1980/ 1981/ 1982/ 1983/ 1984/ 1985/ 1986/ 1987/