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