The satellite XJS A (Xin jishu shiyan A xing) was launched on June 27, 2018, from the Xichang Satellite Launch Center using the Chang Zheng 2C launch vehicle. It has a shape of Box + 2 Pan and measures 0.5 meters in length and diameter with a span of 1 meter. The satellite's dry mass is 500 kilograms, which is also its launch mass. The spacecraft was manufactured by SECM (State Key Laboratory of Space Control and Guidance Technology) for ZLZB (China Aerospace Science and Industry Corporation), though the specific mission purpose remains unspecified. Launch site details indicate it departed from LC2 at Xichang.