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日前日本宇宙开发事业团在筑波宇宙中心公开展示了新研制的大型通信卫星COMETS。该卫星高8米,太阳电池板展开全长31米,装有3个抛物面天线,总重约2吨,该卫星是目前世界上最大的通信广播卫星。计划于1997年8月在日本种子岛宇宙中心用H—Ⅱ火箭发射,进入印尼上空的同步轨道。该卫星试验内容有①卫星间通信试验。接收高轨观测卫星送来的数据信号,然后送回地面;②数字式高清晰度电视播放试
Recently, the Japan Space Development Corporation opened its newly developed large communications satellite COMETS at the Tsukuba Cosmos Center. The satellite is 8 meters high and the solar panel is 31 meters in length with 3 parabolic antennas and a total weight of about 2 tons. The satellite is currently the largest communications broadcasting satellite in the world. It is planned that H-II rocket will be launched at the Tanegashima Cosmos Center in Japan in August 1997 and will enter the geostationary orbit over Indonesia. The satellite test content ① satellite communication test. Receive data signals sent by high-altitude observation satellites, and then sent back to the ground; ② digital high-definition television playback test