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Brightness of first Chinese broadband constellation satellites alarms astronomers
The first satellites of a Chinese broadband constellation are significantly brighter than those of Western systems, posing a new challenge for astronomers.
AST SpaceMobile announced Oct. 4 that it had deployed the large phased array antenna on the first of five BlueBird satellites launched Sept. 12 to provide direct-to-device services. A study published in September based on data collected by the Low Frequency Array (LOFAR) radio telescope found that Starlink “v2 mini” satellites were producing signals far stronger that astronomical sources. Satellite companies are not interested in producing this unintended radiation, so minimizing it should also be a priority in their sustainable space policies,” said Federico Di Vruno, spectrum manager of the Square Kilometer Array Observatory and co-director of CPS, in a statement.
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