On October 11, a handover order was sent to the Heishitan Measurement and Control Station: The retired meteorological satellite "Yuntu 7" will re-enter without control in nine days, and the debris scattered zone will cover a city of one million people. No one claimed the list, so the supervisor slapped it on the desk of Zhou Yan, the assistant engineer who was at the bottom of the evaluation list - "You count it, you keep an eye on it."
Zhou Yan opened an old file that had not been touched for three years and found that the remaining fuel did not match the official conclusion: the star still had enough energy for the last single-pulse maneuver. But to use it, he had to first overturn what he signed in his station, then unseal an antenna that had been sealed for ten years, and repair it using what was written in a rejected application.
What he has to do is move the circle to the sea.
