الملف دا من ويكيميديا كومنز و ممكن تستعمله المشاريع التانيه.
الوصف بتاعه صفحة وصف الملف هناك معروض تحت..
What: In May 1964, NEL began construction of the La Posta Astro-Geophysical Observatory, shown at left, on a 3,900-foot site in the Laguna Mountains 65 miles east of San Diego. The observatory played a major role in solar radio mapping, studies of environmental disturbances, and development of a solar optical videometer for microwave research. Its 60-foot dish, which could both transmit and receive, was used for important Center research programs in propagation and ionospheric forecasting.
What: In May 1964, NEL began construction of the La Posta Astro-Geophysical Observatory, shown at left, on a 3,900-foot site in the Laguna Mountains 65 miles east of San Diego. The observatory played a major role in solar radio mapping, studies of environ