beträffande rymdprojektiler över svenskt territorium

This memorandum details the Swedish military's response to reports of 'peculiar light phenomena' observed over Swedish territory beginning in May 1946. Initially alerted by press reports and civilian observations, the Defense Staff (försvarsstaben) issued orders on June 12, 1946, for all military units to report sightings. By July 8, approximately thirty reports had been received, including information from military attachés and the press in Finland. Following a surge in reports—totaling 250 on July 9 alone—a dedicated delegation was established on July 10, 1946, chaired by Colonel Jacobsson. This delegation included representatives from the Defense Staff, the Air Force, the Naval Administration, the Air Administration, the National Defense Research Institute (FOA), and the National Defense Radio Institute (FRA). The delegation organized intensified surveillance, including the collection and analysis of reports, investigations into potential crash sites, and coordination with civilian agencies such as customs and pilot services. Public cooperation was sought through the press. Furthermore, the Air Force initiated radar surveillance on July 24, which continued with varying intensity through September and resumed in November, despite challenges regarding personnel shortages and equipment limitations. By December 1, 1946, a total of 973 reports had been documented.