[구 SS-07] DEEP-South: 2nd phase of observations for small Solar System bodies

46 / Bull. Kor. Astron. Soc. Vol. 45 No.1, Oct. 2020 images. These images were taken on 2005 November 12 during the close approach to the asteroid. As a result, we found the surface exposure timescales of these boulders are an order of 106 years. In this meeting, we will introduce our data analysis technique and evaluate the consistency among previous research for a better understanding of the evolution of this near-Earth asteroid.