Long March 5 | Tianwen-1 (Mars Global Remote Sensing Orbiter and Small Rover)

Long March 5 | Tianwen-1 (Mars Global Remote Sensing Orbiter and Small Rover)

Wenchang Satellite Launch Center, People's Republic of China

Tianwen-1 ("questions to heaven") Mars mission includes a Martian orbiter and a lander/rover duo. This will be China's first mission to Mars. The spacecraft will reach Mars in February 2021. Lander will remain attached to the orbiter for two to three months before attempting its landing. The chosen landing area is Utopia Planitia, a huge basin formed by a large impact far back in Mars' history. The rover is expected to be in operation for about 90 Martian sols. The Tianwen-1 orbiter will provide a relay communication link to the rover while performing its own scientific observations for one Martian year. The orbiter will operate in a polar orbit in order to map Mars' morphology and geological structure while also using the Mars-Orbiting Subsurface Exploration Radar instrument to investigate soil characteristics and water-ice distribution. It will also measure the ionosphere and the electromagnetic and gravitational fields, the new paper reported. The rover will have 13 instruments detecting things such as topography, soil, environment, atmosphere, water ice, physical field and internal structure. It will investigate the surface soil characteristics and water-ice distribution with its own Subsurface Exploration Radar. It will also analyze surface material composition and characteristics of the Martian climate and environment on the surface.













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China Aerospace Science and Technology Corporation

The China Aerospace Science and Technology Corporation (CASC) is the main contractor for the Chinese space program. It is state-owned and has a number of subordinate entities which design, develop and manufacture a range of spacecraft, launch vehicles, strategic and tactical missile systems, and ground equipment. It was officially established in July 1999 as part of a Chinese government reform drive, having previously been one part of the former China Aerospace Corporation. Various incarnations of the program date back to 1956.


Long March 5

Height 57.00 Meters

Max Stages 2

Mass To GTO 14000 kg

Liftoff Thrust 10600 kN

Diameter 5.00 Meters

Mass To LEO 25000 kg

Liftoff Mass 867 Tonnes

Launch Success 3

Consecutive Success 3

Maiden Flight 2016-11-03

Launch Failures 0


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Related Events

Tianwen-1 Mars Orbit Insertion


The Tianwen-1 orbiter and rover will perform a 14 minutes long burn to enter an elliptical orbit around Mars.

Tianwen-1 Rover Landing


The Tianwen-1 rover will attempt to land on Mars using a parachute to slow down and a propulsive landing for the final 1.5km of the descent.

See More News