It is the size of a skyscraper and will pass 6.8 million kilometers from Earth on Saturday, July 31. It is 2019 YM6, and it is among those that NASA catalogs as Neo (Near Earth Object), the space objects that gravitate in the vicinity of our planet. According to the information reported on the space agency website, it has a diameter between 100 and 230 meters. It is not considered particularly dangerous, but to be watched.
Asteroids this summer
There are several space rocks that will pass within 7.5 million kilometers of Earth this summer. Three asteroids of a few tens of meters in diameter each will pass at about 5 million kilometers on 3 August. They will be roughly the size of an airplane. The largest will arrive on August 21 and will have a diameter between 400 meters and 1.3 kilometers. For NASA it is always classified among the “small space objects”.
Source