On October 07, 2015, at 04:13 UTC the “Long March –2D” (“Changzheng-2D”) rocket-carrier was launched from the Jiuquan Satellite Launch Center in Jiuquan, Gansu Province, the northwest of China. The rocket orbited the group of four “Jilin-1” Earth imaging satellites. The largest of the satellite quartet is about 420 kg and it reportedly has a top resolution of about 0.7 meters. Three other satellites are smaller, two for video capture and one for engineering tests.