Dong Fang Hong 2: Difference between revisions
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'''Dongfanghong II''' was a primary [[television satellite]] used by [[China]] during the later part of the 20th century. It was developed at the [[China Academy of Space Technology|Chinese Academy of Space Technology (CAST)]] and had a design life 4.5 years. The first satellite in this group was launched into a [[geosynchronous orbit]] on April 8, 1984. Broadcasts from these satellites were able to cover all of China and some neighboring regions.{{Citation needed|date=February 2007}} |
'''Dongfanghong II''' was a primary [[television satellite]] used by [[China]] during the later part of the 20th century. It was developed at the [[China Academy of Space Technology|Chinese Academy of Space Technology (CAST)]] and had a design life 4.5 years. The first satellite in this group was launched into a [[geosynchronous orbit]] on April 8, 1984. Broadcasts from these satellites were able to cover all of China and some neighboring regions.{{Citation needed|date=February 2007}} |
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Three satellites orbited in [[geosynchronous orbit]]s at 87.5, 110.5, and 98 degrees east. A fourth satellite failed to achieve a stable orbit due to a problem with the third stage.[http://big5.ce.cn/kjwh/zhuanti/kjzt/slh/zghts/200510/10/t20051010_5383665.shtml] |
Three satellites orbited in [[geosynchronous orbit]]s at 87.5, 110.5, and 98 degrees east. A fourth satellite failed to achieve a stable orbit due to a problem with the third stage.[https://web.archive.org/web/20070310221542/http://big5.ce.cn:80/kjwh/zhuanti/kjzt/slh/zghts/200510/10/t20051010_5383665.shtml] |
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== Satellite design == |
== Satellite design == |
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The satellite was cylindrical with a height of {{convert|8.5|m|abbr=on}}, a diameter of {{convert|2.1|m|abbr=on}} and weighed 441 kilograms (972 lb). |
The satellite was cylindrical with a height of {{convert|8.5|m|abbr=on}}, a diameter of {{convert|2.1|m|abbr=on}} and weighed 441 kilograms (972 lb). |
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The ''Dongfanghong II A'' satellite used a parabolic communications antenna mounted to the top of the satellite for broadcast purposes. The antenna could be rotated to keep it aligned with the Earth. Twenty-thousand solar cells were mounted to the satellite to provide power. This was China's first successful use of photovoltaic technology. [http://www.bjreview.com.cn/06-09-e/bus-2.htm] |
The ''Dongfanghong II A'' satellite used a parabolic communications antenna mounted to the top of the satellite for broadcast purposes. The antenna could be rotated to keep it aligned with the Earth. Twenty-thousand solar cells were mounted to the satellite to provide power. This was China's first successful use of photovoltaic technology. [https://web.archive.org/web/20061006004711/http://www.bjreview.com.cn:80/06-09-e/bus-2.htm] |
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==See also== |
==See also== |
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== External links == |
== External links == |
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* [http://en.cast.cn/printpage.asp?ArticleID=14 About Qi Faren, the chief designer of the satellite.] |
* [https://web.archive.org/web/20070310182440/http://en.cast.cn:80/printpage.asp?ArticleID=14 About Qi Faren, the chief designer of the satellite.] |
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* [http://en.cast.cn/printpage.asp?ArticleID=17 About Peng Shoucheng "director designer of antenna, transponder and tracking subsystem of Dongfanghong-2A satellite"] |
* [https://web.archive.org/web/20070310182431/http://en.cast.cn:80/printpage.asp?ArticleID=17 About Peng Shoucheng "director designer of antenna, transponder and tracking subsystem of Dongfanghong-2A satellite"] |
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* [http://www.astronautix.com/craft/dfh2.htm DFH-2 article at ''Encyclopedia Astronautica''] |
* [http://www.astronautix.com/craft/dfh2.htm DFH-2 article at ''Encyclopedia Astronautica''] |
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Revision as of 15:07, 15 December 2016
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Dongfanghong II was a primary television satellite used by China during the later part of the 20th century. It was developed at the Chinese Academy of Space Technology (CAST) and had a design life 4.5 years. The first satellite in this group was launched into a geosynchronous orbit on April 8, 1984. Broadcasts from these satellites were able to cover all of China and some neighboring regions.[citation needed]
Three satellites orbited in geosynchronous orbits at 87.5, 110.5, and 98 degrees east. A fourth satellite failed to achieve a stable orbit due to a problem with the third stage.[1]
Satellite design
The satellite was cylindrical with a height of 8.5 m (28 ft), a diameter of 2.1 m (6 ft 11 in) and weighed 441 kilograms (972 lb).
The Dongfanghong II A satellite used a parabolic communications antenna mounted to the top of the satellite for broadcast purposes. The antenna could be rotated to keep it aligned with the Earth. Twenty-thousand solar cells were mounted to the satellite to provide power. This was China's first successful use of photovoltaic technology. [2]
See also
External links
- About Qi Faren, the chief designer of the satellite.
- About Peng Shoucheng "director designer of antenna, transponder and tracking subsystem of Dongfanghong-2A satellite"
- DFH-2 article at Encyclopedia Astronautica
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