By Richard Schmude Jr.
Эта книга описывает различные искусственные спутники, которые можно наблюдать даже не вооружённым взглядом, от Международной Космической Станции и до всевозможных спутников-шпионов разных стран. Ричард Шмуде подробно их описывает, как они могут наблюдаться любителями, как их распознать, и как предсказать их орбиты, как их сфотографировать и какие исследования доступны любителям при таких наблюдениях.
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Extra info for Artificial satellites and how to observe them
6) Solar panels generate less power as they get further from our Sun. Therefore, satellites orbiting Solar System bodies beyond Mars usually have additional power sources besides solar panels. Engineers have used radioisotope thermoelectric generators (RTGs) for a few satellites. An RTG converts heat, generated from the radioactive decay of an 21 Satellite Basics element, into electricity. The RTGs on Cassini contain plutonium-238 (238Pu). Each RTG provided 295 W of power in 1997. The decay of 238Pu caused the RTGs to produce less power during the ﬁrst decade of the twenty-ﬁrst century.
10. Frequency ranges for different instruments on Chandrayaan-1. ). Indian engineers built and designed most of the instruments on Chandrayaan-1. It carried out studies of the Moon, the solar wind and the solar wind’s impact on the lunar environment. 10 shows the frequency ranges which different instruments on Chandrayaan-1 measured. 13 summarizes several instruments on board and their purpose. Let’s examine some of these. Terrain Mapping Camera (TMC) The TMC imaged three regions of the Moon at once.
Satellite Applications Satellites today are used in a wide variety of ways. Some are designed to keep track of the weather. Weather images are frequently shown on television. Others are used for television, Sirius radio and other communications applications. Others monitor Earth’s surface. Satellites are used for military applications, the Global Positioning System and for the study of other celestial bodies and the space environment. Satellites used in the study of objects beyond Earth are described in Chap.
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