The eyewitnesses saw the bright bolide flying through clouds from southwest to northeast. The falling was accompanied by a bright, blinding flare brighter than solar illumination and a noise similar to rolling thunder. The illumination embraced the area of ca. 2,800 square kilometres (1,100 sq mi). The fall of individual pieces was accompanied by a whistling and drone, resembling that produced by a jet aircraft or missile. The examination of chemical and physical properties of the meteorite was led by Azeri researcher Mirali Qashqai. The meteorite features a sizeable Widmanstätten pattern and an anomalously low amount of tritium. Similar tritium anomalies were detected previously in other iron meteorites.