论文部分内容阅读
意大利圣马科科学5卫星,是罗马大学航宇研究中心研制的最后一颗卫星,于1988年3月25日发射成功。该星重235公斤,送入低椭圆轨道250至650公里,倾角2.9度,周期100分钟。星体呈球形,直径1米,自旋稳定。卫星外部结构特殊,由带有云母舷窗的金属壳体构成。圣马科5有5项科学试验:意大利1项,测量卫星的轨迹及大气制动系统;西德1项,研究卫星水平接收的紫外、地球、星系间的太阳辐射。美国有两项是与马里兰大学合作,测量卫星周围电场。另一项是美
Italy, the first five satellites of the Universidad San Marcos, the last satellite developed by the Aerospace Research Center of the University of Rome, was successfully launched on March 25, 1988. The star weight of 235 kg, into the low elliptical orbit 250 to 650 kilometers, dip 2.9 degrees, the cycle of 100 minutes. Astral spherical, 1 meter in diameter, spin stable. Special external structure of the satellite, with a metal shell with mica porthole form. There are 5 scientific experiments in San Marco 5: 1 in Italy, measurement of satellite trajectory and atmospheric braking system, and 1 in West Germany to study the solar radiation between the ultraviolet, earth and galaxy received by the satellite. Two in the United States work with the University of Maryland to measure the electric field around the satellite. The other is beauty