U.S. experts say China’s satellite orbit maneuver can be used for space reconnaissance technology
data for: Shenzhou VII launch, the West has been speculation it with flying small satellites for military purposes
newspaper correspondent Division ancient
China in space every move can lead to the vigilance of the United States. According to the U.S. “space” Web site reported on the 6th China’s two satellites in orbit in June on the slow move towards each other to adjust the location, had a “slow-motion space ballet.” As for China to move closer to the action of the mysterious satellite the purpose of the United States is full of speculation.
reported that China’s position of two satellites to adjust in height from the ground, 375 miles, larger SJ-12 satellite from June 12 onwards to the SJ-06F close to the end of August 16, a coaxial column two satellites. World Space Foundation, the U.S. security experts, Wyden said, “From a technical point of view that China has completed such a complex satellite orbit maneuver is a major step forward.” Because “only the U.S. and Russia have had such a complex orbit maneuver capability.”
United States, “Defense News” 6 said the United States Space Command and Strategic Command refused to comment on the orbit maneuver. U.S. Department of Defense issued a brief statement said, “we determined that the two Chinese satellites close to the very close, but do not know whether they had physical contact with the Chinese side does not matter on the two satellites to inform us.” Reported that part of the U.S. high-level Chinese military satellite orbit maneuver is worried anti-satellite test. But Wyden that “the satellite with the intent to destroy the other way mobile satellite completely different.” He said the two satellites close to the slow and careful, if you want to act as a satellite killer, they are close to speed quickly in order to ensure impact and destruction effects. In addition, the use of a satellite to another satellite mode of attack is not rational, this attack is easy to identify, global satellite tracking facilities who can be found in the attack. Strategic and Budgetary Assessments in Washington defense analyst Harrison believes that the satellite can be a “crude anti-satellite weapons,” but the role of “very limited.”
for China’s current space ballet, Wyden that the purpose is likely to be “to develop and practice space rendezvous and technology”, such as manned space program must have the space rendezvous and docking technology. Wyden also speculated that China’s development of the satellite orbit control technology, there are other reasons, the first reconnaissance mission can be better, as the close proximity of the two satellites as the aircraft fleet, can carry various sensors for reconnaissance satellites simultaneously. Second, this approach can also check the other satellites at close range, check the failure to understand Chu Bieguo another satellite or satellites are doing. In addition, such a satellite orbit can also be achieved in the rail service is intended to add fuel to the target satellite or even repair them. Finally, this technology can help eliminate space junk. Discarded rocket motor to the satellite, satellite or other discarded debris in orbit around the track so that it may change their burned into the atmosphere.
But Wyden emphasized that China’s satellite orbit technology is not so easy as it sounds. Close to each other so that two satellites, China must have the appropriate sensors, such as low-power laser radar and ground-based/Haijileida, so as to precisely control the satellite orbital data. Action must be completed to accurately predict the orbit orbit the Earth due to atmospheric drag or asymmetry caused by small changes. Wyden believes that on-orbit rendezvous is a complex technology, especially remote control two satellites from the ground is more difficult to complete the intersection. He said that although the United States and Russia have achieved a spacecraft docking with the space station and space shuttle’s rendezvous with Hubble, the technology needs may be more complex, but their biggest advantage is control of the astronauts in the field. ▲
(“Global Times” September 7, 2010 No. 08 version)
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