Our earth is the third planet on solar system.It revolves around the sun inits own orbit.As asteroids makes its way around the sun,it occasionally intercept with our earth on its way.Asteriods have been the members of Apollo family of space rocks.
Potentially hazardous asteroids are currently based on parameters that measure the asteroids potential to make threatening close approach to the earth “NASA”said.
It was first observed in jan16 1997.NASA concluded that asteriods follows the wide orbit around the sun that takes it into the pane from Mars and Jupiter.the asteroid of 1997 is twice as big as the Burj Dubai skyscraper,the tallest man made structure in the world.Its massive size and near earth orbits are the main reasons 1997 BQ is classified as potentially hazardous object on earth.Specially all asteroids with a minimum orbit intersections of 0.05 or less are considered potentially hazardous on earth.NASA is tracking mountain sized potentially hazardous asteroids that is approaching earth at more than 42000 miles per hour.
