Explorer 26

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Explorer 26 was an American satellite launched on December 21, 1964, as part of NASA's Explorers program. Its primary mission was to study the Earth's magnetic field.[1]


Explorer 26 was a spin-stabilized satellite weighing 45.8 kg. It carried 5 experiments: Solid-State Electron Detector, Omnidirectional and Unidirectional Electron and Proton Fluxes, Fluxgate Magnetometers, Proton-Electron Scintillation Detector, and Solar Cell Damage. [1] The Solar Cell Damage experiment was intended to quantify the degradation of solar cell performance due to radiation, and evaluate the effectiveness of glass shields at preventing this degradation. [2]


  1. ^ a b "Explorer 26". NASA Space Science Data Coordinated Archive. Retrieved 30 December 2017.
  2. ^ Luther W. Slifer; Stephen G McCarron (1965), Preliminary Results of the Explorer XXVI Solar Cell Experiment (PDF), Goddard Space Flight Center