12-519: DFH may refer to Dong Fang Hong , a Chinese space satellite program China Railways DFH shunting locomotives China Railways DFH mainline locomotives Discovery Fit and Health , a television network owned by Discovery Communications Dynamic frequency hopping , in wireless networking Deutsch-Französische Hochschule , German for Franco-German University See also [ edit ] Dong Fang Hong (disambiguation) Topics referred to by
24-706: A tone-generator rendition of the Chinese song " The East is Red " for 28 days. According to Boris Chertok 's memoirs, when the first Soviet space station, Salyut 1 , was under construction, its designated name was "Zarya" (which means "Dawn", in Russian). When the Soviets realized that the Chinese had a space program with a similar name ("Dongfanghong" was also rendered as Zarya into Russian), they renamed their space station to "Salyut" ("Firework"), to avoid confusion. Dongfanghong satellite program later developed satellite bus to use
36-505: Is different from Wikidata All article disambiguation pages All disambiguation pages Dong Fang Hong Dongfanghong ( Chinese : 东方红 ; pinyin : Dōngfāng Hóng ; lit. 'The East is Red') was a satellite program of the People's Republic of China. The program started in August 1965 as Project 651 —a less ambitious successor to the earlier Project 581—with
48-551: Is the third-generation, 3-axis stabilized, large satellite bus developed by China. The satellite bus was designed and developed from 1999 to 2005. The maiden flight was launched on 29 October 2006. The satellite bus had first international customer in 2007. DFH-5 is the fourth-generation, 3-axis stabilized, satellite bus developed by China. First satellite was operational in 2017. Boris Chertok Boris Yevseyevich Chertok (Russian: Бори́с Евсе́евич Черто́к ; 14 March [ O.S. 1 March] 1912 – 14 December 2011)
60-493: The Central Special Committee made the decision to pursue development of a launch vehicle. As per the request of Commission for Science, Technology and Industry for National Defense (COSTIND), the vehicle's first stage and second stage would be based on a DF-4 long range missile. A solid-fueled third stage was added to the design. On 24 April 1970, Dong Fang Hong 1 was launched. After reaching orbit, it transmitted
72-435: The base platform and structure for other Chinese satellites and spacecraft. DFH-2 is the first-generation, spin-stabilized large satellite bus from China, developed in the late 1970s. The first launch was in 1984. DFH-3 is the second-generation 3-axis stabilized, large satellite bus from China, developed in 1987. It could be used for geosynchronous communications and navigation satellites, and deep space exploration. DFH-4
84-479: The goal of launching a satellite heavier than both Sputnik 1 and Explorer 1 into space, and developing all the necessary technologies to do so. In 1958, the Chinese Academy of Science proposed Project 581 which included a plan to launch a satellite into space before 1 October 1959. The project was troubled due to the country's lack of expertise in the field of rocketry. On 21 January 1959, Zhang Jingfu , who
96-530: The rocket-pioneering NII-88 as a head of control systems department, working along with Sergei Korolev , whose deputy he became after OKB-1 spun off from the NII-88 in 1956. He was married to Yekaterina Semyonovna Golubkina. He was an atheist. Between 1994 and 1999 Boris Chertok, with support from his wife Yekaterina Golubkina, created the four-volume book series about the history of the Soviet space industry. The series
108-449: The same term [REDACTED] This disambiguation page lists articles associated with the title DFH . If an internal link led you here, you may wish to change the link to point directly to the intended article. Retrieved from " https://en.wikipedia.org/w/index.php?title=DFH&oldid=1246918081 " Category : Disambiguation pages Hidden categories: Articles containing German-language text Short description
120-588: Was a Russian engineer in the former Soviet space program , mainly working in control systems , and later found employment in Roscosmos . Major responsibility under his guidance was primarily based on computerized control system of the Russian missiles and rocketry system, and authored the four-volume book Rockets and People – the definitive source of information about the history of the Soviet space program . From 1974, he
132-436: Was in charge in the satellite research program, postponed the project to allow effort to be put into developing more basic technologies, such as sounding rocketry . In December 1964, during the 3rd National People's Congress , Zhao Jiuzhang suggested that the work on satellites be resumed. In August 1968, the Central Special Committee approved Chinese Academy of Science 's plan, which later became Project 651. In June 1965,
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#1732863060875144-520: Was the deputy chief designer of the Korolev design bureau , the space aircraft designer bureau which he started working for in 1946. He retired in 1992. Born in Łódź (modern Poland), his family moved to Moscow when he was aged 3. Starting from 1930, he worked as an electrician in a metropolitan suburb. Since 1934, he was already designing military aircraft in Bolkhovitinov design bureau. In 1946, he entered
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