  The Hard X-ray Modulation Telescope HXMT or also dubbed as Insight HXMT is
China s first astronomical satellite . It was launched on 15 th June 2017 in
JiuQuan, China and is currently in service smoothly. It was designed to perform
point ing , scan ning and gamma ray burst (GRB) observations and , based on the
Direct Demodulation Method (DDM), the image of the scanned sky region can be
reconstructed. Here we introduce the mission and its progresses in aspects of
payload, core sciences, ground calibration/facility , ground segment, data
archive, software, in orbit performance, calibration, background model,
observations and preliminary results .
