My family members - Long March carrier rocket series

Long March 4 series – high orbit launch vehicle

The Hard X-ray Modulation Telescope, atop a Long March 4B carrier rocket, is launched at the Jiuquan Satellite Launch Center on June 15, 2017. [Photo/Xinhua]

The series is mainly used to send satellites into geostationary orbit and solar-synchronous orbit.

Long March 4 is a three-stage regular carrier rocket. Long March 4A has a length of 41.9 meters and Long March 4B has a length of 45.58 meters. Both have a maximum diameter of 3.35 meters.

The most recent launch of Long March 4B sent the country's first space-based X-ray observatory into space in June.