Lightning is a typical example of an instantaneous random point source target. It has close connection with severe convective phenomena such as a thunderstorm,
On January 23,China’s first HighThroughput Satellite(HTS),SJ-13,was delivered in orbit,marking its formal operation.After being put into operation,the satellite has been listed in the Chinasat series
A ceremony was held on January30 to announce the Huiyan satellite,China’s first Hard X-ray Modulation Telescope(HXMT)put into service.HXMT was formally delivered and put into service after it complete