1976 NASA SPS Engineering and Economic Analysis Summary

TABLE 13-1. FIRST PRIORITY ENVIRONMENTAL EFFECTS Physical Effects of Stratosphere Ozone Depletion Expected Acoustic Launch Effects Vehicle Failure Effects Land Usage Effects Ionospheric Microwave Interactions Biological Effects of Microwave Beam Communication, Meteorological, and Astronomy Effects of Microwave Beam Biological Effects of Space Radiation Magnetosphere Plasma SPS Interactions SPS Collision Probability with Other Satellites — Secondary particle emission — Magnetic field/shadowing effects — Iterating models to include results learned from Scatha benchmark experiments • Definition of in situ benchmark experiments for Scatha relative to SPS and data analysis of ATS-6 • Experimental modeling of aspects of SPS charging phenomena and data analysis equipment • Quasi-empirical modeling of charging phenomena affecting large space structures (e. g., SPS), including: — Environmental effects that could uniquely affect large active space structures — Perturbations to the ambient environment created by large active space structures — Surface discharge characteristics based on available statistics of spacecraft malfunctions.

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