Japan asteroid probe "Hayabusa 2" enters target orbit

Hayabusa 2 a Japnese space probe has reached a milestone by successfully entering into earth’s orbit. It is now heading towards its destination i.e. asteroid.
Hayabusa: First mission, in which spacecraft arrived at the small asteroid "Itokawa" whosesize is only about 500m. It helped in exploring the mysterious world. The Asteroid is a rock-rich S-type one.
About Hayabusa-2: 
It is an unmanned explorer. It was launched a year ago aboard Japan’s main H-IIA rocket from Tanegashima Space Centre for its six-year mission
Mission: to bring samples from the surface of an asteroid to earth. It will visit a C-type asteroid. C-type asteroids are also rock quality but supposedly contain much more organic matter and water. An asteroid, currently considered as a target of Hayabusa-2 is temporally called 1999 JU3. It is expected to return by 2020.