| "Explorer" No. (explorer-1) 1 of the first artificial Earth satellite American launch. Explorer 1 satellite on February 1, 1958 launch, is an American scientific satellite series, the first satellite. "Explorer" on the 1st run on the satellite perigee 360 km, apogee 2531 km, inclination of 33.34 ° orbit period of 114.8 minutes. With a Geiger counter, micro-meteor impacts counter, temperature sensing element, made to measure cosmic rays and micro-meteors, satellites also measure the temperature inside and the shell, May 23, 1958 satellite stopped working. "Explorer" is the main results of the 1st first discovered the Earth's radiation belts, later known as the Fan Ailun radiation belts. This high-energy charged particles in the radiation belts of manned space flight and satellite materials, instruments have certain dangers. |
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