Where did the Harmony train from Beijing to Yanqing arrive and when did it leave?

The line starts from Beijing North and ends in Yanqing as far as possible. It was named suburban railway s2 line, which was opened in 2008. The following is an excerpt from an encyclopedia.

S2 Line of Beijing Suburb Railway, referred to as S2 Line of Urban Railway for short, was put into operation on August 6th, 2008. It is a commuter train running on the beijing-baotou railway and Kangyan branch lines. The line starts from Beijing North Station in Xicheng District, Beijing, passes through Haidian District and Changping District, and reaches Yanqing Station in Yanqing County. It is the first rapid commuter railway transportation system in Beijing, with a daily passenger volume of nearly 20,000 passengers.

The main stations of the route are: Jingbei, Tsinghua Campus, Qinghe, Nankou, Badaling, Kangzhuang and Yanqing, and some routes focus on Badaling/Kangzhuang.