One mission, several platforms

Tianwen is a planetary-exploration program. Tianwen-1 is its Mars mission, launched in 2020, with an orbiter, landing system and Zhurong rover. Calling every component Tianwen-1 can be convenient, but a technical explanation must identify which vehicle performed each observation or maneuver.

The orbiter supplies broad observations while the rover investigates its local surface environment. Their instruments address terrain, materials, subsurface structure and the surrounding environment. A global pattern and a local measurement can complement one another without having the same spatial resolution or coverage.

For a fictional mission review, label three boxes: orbital measurements, landing, and surface work. Assign each claim to the platform that could establish it. An image of the orbiter at Mars does not prove that a rover has driven anywhere. A rover photograph does not by itself describe the orbiting instrument’s coverage.