Japan Plans to Launch Surveillance Communication Satellite
Japanese media reports point out that in 2030, Japan intends to launch a communication satellite with surveillance functions, "satellite attack satellite (killer satellite)", in order to strengthen the surveillance of space.
Yomiuri Shimbun reported that the Japanese Self-Defense Forces (SDF) use communication satellites to communicate with each other with high privacy, and the satellites usually operate in a geostationary orbit about 36,000 kilometers above the ground. Surveillance of space has become an important issue, and the communication satellites not only avoid the pursuit of "killer satellites", but also need to avoid the large amount of space garbage produced by the sabotage experiments of the Chinese and Russian satellites, in order to prevent collision accidents and malfunctions. The principle of communication operation of the Self-Defense Force is based on a group of three communication satellites, which means that at least three satellites are used for monitoring missions. Currently, the Japanese government is planning to launch the first "Space Domain Sensing (SDA) satellite" in 2026, which will cost about 100 billion yen, and the launch schedule of the other two SDA satellites is still undecided.
In order to monitor North Korea's test missile launches, etc., the U.S. military's early warning satellite is also in the orbit of the communications satellite, so Japan is also considering close cooperation with the U.S. before establishing a self-monitoring system.
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