Asteroid 2013-QR1 is expected to make a pass by earth on August 25th. Discovered a mere 5 days ago by a survey in Hawaii, the object is estimated to be 755 feet (230 meters) wide and is projected to come within 8.3 LD of our planet.
In an August 8, 2013 report here on The Apocalyst, I noted that there were no 'known' near-earth objects expected for the next several months. 2013-QR1 is a reminder of how stealth these bodies can be, and how quickly they can appear in our scopes, with little-to-zero advance notice.
While any near-earth object is considered 'potentially hazardous,' the risk presented by 2013-QR1 is considered by scientists to be minute.
Note: 1 'LD' equals the distance from here to the moon, approximately 239,000 miles (384,000 kilometers).