Hongtu-1

From Spacefaring




The Hongtu-1, known commonly by its English-language name PIESAT-1 and infrequently as Nuwa-1, is a Chinese commercial X-band interferometric synthetic aperture radar (InSAR) satellite constellation performing Earth observation missions in Sun-synchronous orbit. Hongtu-1 satellites are intended to map global non-polar regions at a scale of 1:50,000 meters to produce high-precision digital surface models (DSM), likely fulfilling both commercial, scientific, and military reconnaissance tasks.