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US intelligence, surveillance and reconnaissance (ISR) satellites orbit at about 800 km (500 mi) high and move at 7.5 km/s (4.7 mi/s), so if conflict was to break out between the United States and China, a Chinese Intermediate-range ballistic missile would need to compensate for 1350 km (840 mi) of movement in the three minutes it takes to ...
The space program of the People's Republic of China is about the activities in outer space conducted and directed by the People's Republic of China.The roots of the Chinese space program trace back to the 1950s, when, with the help of the newly allied Soviet Union, China began development of its first ballistic missile and rocket programs in response to the perceived American (and, later ...
The Jianbing-7 class of Yaogan satellites, with military designations beginning with "JB-7", are Chinese military radar reconnaissance satellites built by SAST with an orbital period of 97 minutes and a side-looking radar system designed by the CAS's Institute of Electronics. As of July 2022, China has launched four Jianbing-7 radar satellites ...
Anti-satellite weapons, which are primarily surface-to-space and air-to-space missiles, have been developed by the United States, the USSR/Russia, India and the People's Republic of China. Multiple test firings have been done as part of recent Chinese and U.S test programs that involved destroying an orbiting satellite.
The first military use of satellites was for reconnaissance. In the United States the first formal military satellite programs, Weapon System 117L, was developed in the mid-1950s. [2] Within this program a number of sub-programs were developed including Corona. [2] Satellites within the Corona program carried different code names.
Kosmos 2251 was launched on a Russian Cosmos-3M carrier rocket on June 16, 1993. [2] This satellite had been deactivated prior to the collision, and remained in orbit as space debris. The other spacecraft, Iridium 33, was a 560-kilogram (1,200 lb) U.S.-built commercial satellite that was part of the Iridium constellation for satellite phones. [2]
The reentry vehicle was damaged by reentry and the parachute partially burned, however the film was declared undamaged and the mission was deemed as success making China the third nation to capture space-based imagery after the United States' CORONA satellite in 1960 and the Soviet Union's Zenit satellite in 1962. [2] [3] [4] [6] [13] [5]
Reconnaissance satellites were used by militaries to take accurate pictures of their rivals' military installations. As time passed the resolution and accuracy of orbital reconnaissance alarmed both sides of the Iron Curtain. Both the United States and the Soviet Union began to develop anti-satellite weapons to blind or destroy each other's ...