Hello,
The attached image shows the trail of Potentially Hazardous Asteroid 2008 BT18 (mag 13) as recorded from Brisbane on 20th July, 2008 from 4:38am to 5:23am AEST. Tak Mewlon 180 F12 with ST7E ccd.
Data about this PHA can be found
here:
Its approximate diameter is 770 metres and its closest approach to Earth was approx. 5.8 Lunar Distances, on 15th July 2008. So, while you were all sleeping in the wee hours of today, I was out there, at my station, on PHA look out, watching your backs!
Another great NEO/PHA website is
here:
Cheers
Dennis