E) navigation warning: Aircraft are advised that a potential hazard
may occur due to uncontrolled re-entry of tiangong-1 satellite
fragments into the earth atmosphere estimated by italian airspace
agency (asi) in a time frame btn 28th march 2018 hr 1537 and 4th
april 2018 hr 0543. According to the forecast trajectory,
tiangong-1 satellite could jeopardize the overall italian fir
south of 440000n