🚀 Aerospace & Space · Data Flow
Spacecraft Telemetry Data Flow
How telemetry from a spacecraft is received, decoded, checked against limits and archived, and how commands go back up.
Drawing diagram…
What this diagram shows
- Ground stations receive frames during each pass
- Telemetry is decoded and checked against safe limits
- Commands are verified before uplink
Prompt used
Data flow for spacecraft operations: during a pass, ground stations receive CCSDS telemetry frames, front-end processors decode them into packets, the telemetry processing system converts raw values into engineering units and checks limits, raising out-of-limit alarms to flight controllers. All telemetry is archived. Flight controllers build command sequences that are checked in a simulator, approved and uplinked through the ground station; command acknowledgements come back in telemetry.
Mermaid code
flowchart LR SC[Spacecraft] -->|CCSDS frames during pass| GS[Ground Station] GS --> FEP[Front-end Processor: frames to packets] FEP --> TMP[Telemetry Processing: engineering units] TMP -->|Limit checks| ALM[Out-of-limit Alarms] ALM --> FC[Flight Controllers] TMP --> ARC[(Telemetry Archive)] TMP --> DSP[Displays] FC -->|Command sequence| SIM[Simulator Check] SIM -->|Approved| CMD[Command System] CMD -->|Uplink| GS GS -->|Commands| SC
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