The TIANHUI 1-03 satellite, also known as Tianhui 1-03, was launched on October 26, 2015, from the Jiuquan Satellite Launch Center using a Chang Zheng 2D launch vehicle. It is part of China's Earth observation mission and is owned by GCDX. The spacecraft measures 1 meter in length and diameter with a span of 3 meters, has a dry mass of 1000 kg, and the same launch mass. Its configuration consists of a box shape with two panels and it is equipped with 2 deployable solar arrays and batteries for power generation. The satellite was manufactured by DFHZ using the CAST-2000 bus technology.