In addition, telemetry values can be presented graphically on these terminals, and on hard-copy strip charts. A virtual playback capability is also provided to enable the analyst to replay significant events. Once contact with the satellite has ended, the stored telemetry and real-time telemetry are merged into a single data base for postpass computer analysis. The system operated in either the interactive or batch modes. In the interactive mode, the analyst can retrieve information from the telemetry data base and perform analyses.
Menus lead the data analyst through the system.
Results are displayed on the operator's terminal. In the batch mode of operation repetitive and time-consuming processing can be executed more rapidly. The batch mode can be initiated directly from the console or delayed awaiting a specific event, e.g., completion of the current pass. Multiple orbits of data can be scanned. Special user-defined retrieval algorithms are available to the analyst to aid in searching.