Object name: 2003DZ15
2003DZ15 made a "close" pass by the Earth at the end of July 2013. That is, if you consider 2.1 million miles close. Unfortunately, it was cloudy that and the following night. The weather was poor the night before but I did manage to get 20 two minute frames through a semi-gap in the clouds. The asteroid was 90,000 miles further away but slightly brighter due to it moving toward the sun so we were seeing less of its sunlit side each night. The difference was only a tenth of a magnitude. When dealing with a 17th magnitude object that's not all that great a difference. Thanks to the clouds and haze between clouds it appears even fainter in my movie.