What is a primary function of a ground data system in telemetry?

• A. Provide real-time vehicle control commands
• B. Store, process, analyze telemetry data and support dashboards
• C. Manufacture sensors
• D. Directly execute mission planning without data

Answer: (B)

In telemetry, the ground data system is where the telemetry it receives from the vehicle is handled after transmission. Its job is to ingest the data, decode and time-align it, store it for current use and long-term analysis, run processing and analytics to extract useful health and status information, and present that information through dashboards and visualization tools for operators. This combination—storing, processing, analyzing, and delivering dashboards—empowers monitoring, diagnostics, and decision-making during a mission and supports post-flight reviews.

The other options describe activities outside this core function: issuing real-time vehicle control commands is typically managed by flight control or command-and-data systems, not by the ground data system responsible for data handling and presentation; manufacturing sensors is a hardware activity, not part of data handling; and executing mission planning without data ignores the essential role of telemetry data in informing plans and decisions.