For the purpose of ensuring normal operations of Shenzhou (SZ) series of manned spacecrafts and cosmonauts' safety, Space Environment Monitors (SEM)are mounted on board SZ-2, 3, 4, 5. SEMs aim to detect the high e...For the purpose of ensuring normal operations of Shenzhou (SZ) series of manned spacecrafts and cosmonauts' safety, Space Environment Monitors (SEM)are mounted on board SZ-2, 3, 4, 5. SEMs aim to detect the high energy particles, the low energy particles, charging potential, atmospheric desity and composition. Detection of SEMs enable us to understand better the space environment in the manned spacecraft's orbit, and to provide a good space environment services for the spacecraft and cosmonauts. In addition, by using the data from SEMs, we have achieved some scientific accomplishments, such as the energy spectra of precipitating electrons, the abnormal variety of atmospheric density and composition during geomagnetic disturbances, the electron angle distribution in the low orbit and so on.展开更多
Based on the requirements of manned spaceships,this paper introduces the characteristics of the propulsion system from the perspectives of design scheme,basic composition,safety and reliability measures,and also intro...Based on the requirements of manned spaceships,this paper introduces the characteristics of the propulsion system from the perspectives of design scheme,basic composition,safety and reliability measures,and also introduces the ground test verification and on-orbit flight characteristics of the Shenzhou 13 propulsion system.According to the flight results,it was seen that the performance of the Shenzhou 13 propulsion system fully met the engineering requirements for the manned space mission.展开更多
Generally, the Shenzhou 8 and Shenzhou 9 spaceships were similar in technology status. As the Shenzhou 9 spaceship implemented the manned rendezvous and docking mission, the program was appropriately modified. There a...Generally, the Shenzhou 8 and Shenzhou 9 spaceships were similar in technology status. As the Shenzhou 9 spaceship implemented the manned rendezvous and docking mission, the program was appropriately modified. There are 10 primary differences between the two missions.展开更多
On September 29,2011,the Tiangong 1 target spacecraft was launched into space by a LM-2FTI launch vehicle thus commencing the rendezvous and docking mission,the second stage of China's Manned Space Program.The She...On September 29,2011,the Tiangong 1 target spacecraft was launched into space by a LM-2FTI launch vehicle thus commencing the rendezvous and docking mission,the second stage of China's Manned Space Program.The Shenzhou 8 spaceship was then launched into space by a LM-2FY8 rocket carrier at 5:58 on November 1,2011.The unmanned Shenzhou 8 successfully docked with Tiangong 1 on November 3.Shenzhou 8 undocked from Tiangong 1 on 14 November and again successfully completed a second rendezvous and docking,confirming a major breakthrough,demonstrating several key technologies in docking,spacecraft complex operation and separation,thus laying a solid foundation for the construction of China's space station.Shenzhou 8 deorbited on 17 November,2011 and landed safely at the main landing site located in the Amu Gulang Grasslands in Siziwangqi,Inner Mongolia Autonomous Region,marking the success of the first rendezvous and docking mission carried out by China.展开更多
China’s first manned space docking mission between Shenzhou 9 spaceship and Tiangong1 target spacecraft achieved a complete success when all the three astronauts aboard climbed out of the Shenzhou 9 recoverable capsu...China’s first manned space docking mission between Shenzhou 9 spaceship and Tiangong1 target spacecraft achieved a complete success when all the three astronauts aboard climbed out of the Shenzhou 9 recoverable capsule in good physical condition on June 29. Jing Haipeng, commander of the Shenzhou 9, climbed out of展开更多
Considering the characteristic orbit of Shenzhou IV spacecraft and the advantages and disadvantages of several types of domestic orbit measurements, a scheme of IPOD is determined, which uses GPS, SLR and USB observat...Considering the characteristic orbit of Shenzhou IV spacecraft and the advantages and disadvantages of several types of domestic orbit measurements, a scheme of IPOD is determined, which uses GPS, SLR and USB observation data jointly plus precise ionosphere corrections to GPS observation data. IPOD system and mathematic models of OD are introduced. The results of different joint OD are analyzed using true observation data, and show that radial accuracy is better than 2 m.展开更多
文摘For the purpose of ensuring normal operations of Shenzhou (SZ) series of manned spacecrafts and cosmonauts' safety, Space Environment Monitors (SEM)are mounted on board SZ-2, 3, 4, 5. SEMs aim to detect the high energy particles, the low energy particles, charging potential, atmospheric desity and composition. Detection of SEMs enable us to understand better the space environment in the manned spacecraft's orbit, and to provide a good space environment services for the spacecraft and cosmonauts. In addition, by using the data from SEMs, we have achieved some scientific accomplishments, such as the energy spectra of precipitating electrons, the abnormal variety of atmospheric density and composition during geomagnetic disturbances, the electron angle distribution in the low orbit and so on.
文摘Based on the requirements of manned spaceships,this paper introduces the characteristics of the propulsion system from the perspectives of design scheme,basic composition,safety and reliability measures,and also introduces the ground test verification and on-orbit flight characteristics of the Shenzhou 13 propulsion system.According to the flight results,it was seen that the performance of the Shenzhou 13 propulsion system fully met the engineering requirements for the manned space mission.
文摘Generally, the Shenzhou 8 and Shenzhou 9 spaceships were similar in technology status. As the Shenzhou 9 spaceship implemented the manned rendezvous and docking mission, the program was appropriately modified. There are 10 primary differences between the two missions.
文摘On September 29,2011,the Tiangong 1 target spacecraft was launched into space by a LM-2FTI launch vehicle thus commencing the rendezvous and docking mission,the second stage of China's Manned Space Program.The Shenzhou 8 spaceship was then launched into space by a LM-2FY8 rocket carrier at 5:58 on November 1,2011.The unmanned Shenzhou 8 successfully docked with Tiangong 1 on November 3.Shenzhou 8 undocked from Tiangong 1 on 14 November and again successfully completed a second rendezvous and docking,confirming a major breakthrough,demonstrating several key technologies in docking,spacecraft complex operation and separation,thus laying a solid foundation for the construction of China's space station.Shenzhou 8 deorbited on 17 November,2011 and landed safely at the main landing site located in the Amu Gulang Grasslands in Siziwangqi,Inner Mongolia Autonomous Region,marking the success of the first rendezvous and docking mission carried out by China.
文摘China’s first manned space docking mission between Shenzhou 9 spaceship and Tiangong1 target spacecraft achieved a complete success when all the three astronauts aboard climbed out of the Shenzhou 9 recoverable capsule in good physical condition on June 29. Jing Haipeng, commander of the Shenzhou 9, climbed out of
文摘Considering the characteristic orbit of Shenzhou IV spacecraft and the advantages and disadvantages of several types of domestic orbit measurements, a scheme of IPOD is determined, which uses GPS, SLR and USB observation data jointly plus precise ionosphere corrections to GPS observation data. IPOD system and mathematic models of OD are introduced. The results of different joint OD are analyzed using true observation data, and show that radial accuracy is better than 2 m.
