Trace Gas Orbiter is an atmospheric research satellite sent to Mars as part of the ExoMars program. It maps the atmospheric composition of the planet, searching specifically for methane and other trace gases that could indicate active biological or geological processes. It also serves as a communication relay for surface rovers.
Heard on the job
TGO relayed the telemetry from the rover down to the deep space network.
Also heard as
- Trace Gas Orbiter