The cloud is still visible 26 hours later, at which moment one can see a 100 km long dark line on the Ice Cap, marking the western edge of the cloud. The line points some 10 degrees West of North, which we interpret as the arrival direction of the meteoroid. The enclosed volume of air is thus at least 50,000 cubic km. If the moist air contains 0.1 gram of water per litre derived either from the meteoroid or from evaporating ice, this amounts to 5 billion tons. The minimum meteorite mass required to melt and evaporate this amount of water is 4 million tons, if the velocity of the impactor was 70 km per second.
Old tradition dictates that a fall is named from the closest postal office.
This is Qaqortoq, at the south tip of Greenland. The city was formerly called Julianehaab. The above report was compiled using data supplied by Morten Bo Madsen, Anja Andersen, Torben Risbo, and Lars Lindberg Christensen.