June-July 2008 Earth-asteroid encounters:

Potentially Hazardous Asteroids are space rocks larger than approximately 100m that can come closer to Earth than 0.05 AU. None of the known rocks is on a collision course with our planet, although astronomers are finding new ones all the time. [comment]

On June 10, 2008 there were 956 potentially hazardous asteroids.

June-July 2008 Earth-asteroid encounters:

Asteroid	Date(UT)	Miss Distance	Mag.	Size
2008 KO	June 1	4.4 ld	18	60 m
2008 KT	June 3	3.3 ld	20	9 m
2008 LB	June 9	3.3 ld	17	26 m
2008 LG2	June 13	9.2 ld	19	36 m
2008 LC	June 17	9.8 ld	18	55 m
2008 KN11	June 22	9.0 ld	18	110 m
2000 AD205	June 26	54 ld	17	800 m
1999vu	June 29	65 ld	16	1.6 km
2008 BT18	July 14	5.9 ld	13	1.0 km

Notes:ld means "Lunar Distance." 1 LD = 384,401 km, the distance between Earth and the Moon. 1 LD also equals 0.00256 AU. MAG is the visual magnitude of the asteroid on the date of closest approach.