SILU-1 (also known as SILKROAD 1 or Silu-1) is a CubeSat (3U) designed for Earth observation, manufactured by HHJ and owned by XCYS. It was launched on April 20, 2017, from Wenchang Spacecraft Launch Site using the Chang Zheng 7 launch vehicle from LC201. The satellite measures 0.3 meters in length with a diameter of 0.1 meters and spans 0.3 meters. Its dry mass is 4 kilograms, identical to its launch mass. The spacecraft has a box shape and utilizes solar cells and batteries for power. No additional equipment or specific details about its attitude determination and control system (ADCS) are provided in the data.