TY42 (Shenqi-2) C-band SAR Satellite

TY42 (Shenqi-2), launched 17 May 2025 aboard a Zhuque-2A (ZQ-2A) rocket from the Dongfeng Commercial Aerospace Innovation Test Zone, is a lightweight, low-cost, high-performance C-band SAR satellite jointly developed by Spacety and Zhangye Constellation Space Technology Co., Ltd. Equipped with Spacety’s next-generation SAR payload, it achieves all-day, all-weather Earth observation with stable acquisition of high-resolution imagery under complex meteorological conditions. TY42 also features operational Interferometric SAR (InSAR) capability, enabling millimeter-level surface-deformation monitoring, with applications spanning natural resource management, water conservancy, power grids, infrastructure monitoring, marine and coastal surveillance, and disaster emergency response. In orbit, TY42 collaborates with sister satellites Shenqi-1 and Fucheng-1 to perform repeat-pass interferometric imaging, delivering global operational InSAR services with a 3-4 day revisit cycle.