Flight plan After several delays, which pushed the launch back from early August, the Chang Zheng 2C and its Yuanzheng-1 upper stage were successfully rolled out to South Launch Site (SLS) 2 at Jiuquan and prepared for launch. At 11:15 UTC (07:15 EDT, 19:15 Beijing time) on Tuesday, August 24, the four YF-21C engines that power the Chang Zheng 2C’s first stage ignited, providing the rocket with over 2,900kN of thrust and sending it and its three payloads on a path to orbit. The Yuanzheng-1 is powered by one YF-50D engine, which provides the stage with 6.5kN of thrust and…