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Malfunctions hamper new-type satellite after launch

By Zhao Lei | China Daily | Updated: 2019-09-14 08:07
百度 (南方日报傅鹏黄进) 百度 各地统战部北京市委统战部天津市委统战部河北省委统战部山西省委统战部内蒙古自治区党委统战部辽宁省委统战部吉林省委统战部黑龙江省委统战部上海市委统战部江苏省委统战部浙江省委统战部安徽省委统战部福建省委统战部江西省委统战部山东省委统战部河南省委统战部湖北省委统战部湖南省委统战部广东省委统战部广西自治区党委统战部海南省委统战部重庆市委统战部四川省委统战部贵州省委统战部云南省委统战部西藏自治区党委统战部陕西省委统战部甘肃省委统战部青海省委统战部宁夏自治区党委统战部新疆自治区党委统战部新疆生产建设兵团党委统战部沈阳市委统战部大连市委统战部长春市委统战部哈尔滨市委统战部南京市委统战部杭州市委统战部宁波市委统战部厦门市委统战部济南市委统战部青岛市委统战部武汉市委统战部广州市委统战部深圳市委统战部成都市委统战部南昌市委统战部长沙市委统战部贵阳市委统战部海淀区委统战部本溪市委统战部阜新市委统战部吉林市委统战部松江区委统战部宝山区委统战部金山区委统战部南通市委统战部宿迁市委统战部镇江市委统战部温州市委统战部淮安市委统战部安庆市委统战部铜陵市委统战部淄博市委统战部滨州市委统战部漯河市委统战部宜昌市委统战部湘潭市委统战部益阳市委统战部珠海市委统战部遵义市委统战部毕节市委统战部丽江市委统战部延安市委统战部天水市委统战部 百度 国家图书馆在总馆北区视听服务空间,专门设置了“我的国图故事”征集点,接受读者提交的各类作品,读者还可在工作人员的协助下,现场摄录、提交作品。 百度 孟根布拉格苏木 百度 帽儿山镇 百度 南沙镇

China's new type of communication satellite, ChinaSat 18, has encountered malfunctions since it was placed in space on Monday night, according to Xinhua News Agency.

Xinhua reported on Tuesday afternoon that the launch and rocket-satellite separation were normal, but the satellite later failed to work. Researchers have been investigating possible causes, it said.

The report did not mention whether ChinaSat 18 has reached its preset orbit or whether it can be recovered.

The satellite, the first developed on the country's DFH-4E communication satellite platform, lifted off at 8:03 pm on Monday atop a Long March 3B carrier rocket at the Xichang Satellite Launch Center in Sichuan province. It is tasked with improving the telecommunication and broadcasting services for China and its neighbors in southwestern Asia, according to a statement from China Aerospace Science and Technology Corp, the nation's major space contractor.

After in-orbit tests, it will be delivered to China Satellite Communications and is expected to work in a geostationary orbit for 15 years.

The China Academy of Space Technology began development of ChinaSat 18 in 2013. The satellite has a total of 41 Ku-band and Ka-band transponders designed and made by Thales Alenia Space, a Franco-Italian aerospace manufacturer.

Compared with its predecessors, the new satellite features optimized designs, expanded structure and enlarged capacity and promises a 30 percent increase in overall capability over the DFH-4 series, the current pillar of China's communication satellite fleet, according to Shi Ming, chief designer of the DFH-4E communication satellite platform.

China has been striving to design and build world-class, high-performance communication satellites in the past several years to satiate the rapidly rising demand for telecommunication, broadcasting and internet services.

In January 2018, the ChinaSat 16 - the nation's first high-capacity communication satellite, which was launched by a Long March 3B rocket at the Xichang center in April 2017 - conducted the world's first experiment on high-orbit laser communication, a technology crucial to enabling a spacecraft to send, receive and transmit a large quantity of data with ground stations.

Chinese researchers have also developed DFH-5, the next-generation communication satellite platform, and are waiting for the next Long March 5 heavy-lift rocket mission to send the first such satellite into space, according to Chinese space authorities.

zhaolei@chinadaily.com.cn

(China Daily 08/21/2019 page4)

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