Sondrestrom AB Greenland unidentified aerial event — April 6, 1953

On or during April 6, 1953, at or near Sondrestrom AB Greenland, Greenland, the source reports the following sequence: CONCLUSION: Analyzed as (BALLOON) It was believed by the Intelligence Officer of the 9th Air Division that the object observed was a balloon. This light was observed for approximately 3 seconds and was estimated to be at an altitude of 30,000 feet. DESCRIPTION At 2302, two observers flying MATS aircraft reported sighting an unidentified light 1 to 2 miles south of Sondrestromfjord Air Base, Greenland. The object was observed to be traveling in a northerly direction of travel at an estimated speed of 165 knots. The white light was observed on the starboard side at approximately 20 to 30 degrees off the bow. The object(s) were observed by the crew of the aircraft for approximately 10 minutes. The object(s) appeared to be metallic in nature and were observed to be in level flight at an estimated altitude of 3,000 to 5,000 feet above the ground. The object(s) were observed to make an abrupt change in direction and then accelerate at a high rate of speed and disappear from view. The "Great Fall" (3 April) case was Venus if reported timesf was in error.