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The Queqiao satellite's primary purpose is to relay communications to/from the upcoming Chang'e 4 lander and its rover. However, it also has scientific targets. In particular it carries a joint Dutch-Chinese low-frequency radio antenna to perform deep space astronomical observations. Its position around the Earth-Moon L2 point puts it partially behind the ...


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Several factors contribute to needing a large antenna: it is used to communicate with the rover, which weighs only 100 kg so can't carry a large dish it'll be in orbit at the Earth-Moon L2 Lagrangian Point, a distance of 60,000 km from the Moon. the lander and rover use omnidirectional antennas (i.e. with low gain) to receive data These factors are all ...


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Queqiao carries two cameras: According to this Xinhua report (Chinese) following the launch, Queqiao, "carries two cameras, one large and one small. The small one will observe how the satellite antenna opens, and the large one can take group photos of the Moon and the Earth." Annotated version of your first photo: So this photo is from the ...


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Was Queqiao in a halo or Lissajous orbit? It is hard to say which, or even yes or no, because there are so many kinds of Lagrange point orbits possible that can be maintained with a little help from propulsive station keeping, and a specific, definitive answer would require either plenty of orbital tracking data or more information from the spacecraft's ...


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