The Great Daylight 1972 Fireball (or US19720810) was an Earth-grazing meteoroid which passed within 57 kilometres (35.4 miles) of the surface of the Earth at 20:29 UTC on August 10, 1972. It entered the Earth’s atmosphere in daylight over Utah, United States (14:30 local time) and passed northwards leaving the atmosphere over Alberta, Canada. It was seen by many people and recorded on film and by space-borne sensors.
The Great Daylight 1972 Fireball on Wikipedia.
