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Generate Ephemeris Records

After configuring a study's parameters, bodies, and metrics, you generate the ephemeris records to produce the tabular output. Generation runs asynchronously on a background thread, so you can monitor progress while it completes.

Prerequisites​

Ephy enables the Run button only when all required parameters are defined:

  • A valid date range (start date is before end date)
  • A positive interval value
  • At least one body is selected

Generating Records​

  • Click the Run button.

Study view showing the Run button enabled

A progress indicator appears showing the completion percentage. After generation completes, the ephemeris table displays the records, the study locks to prevent parameter changes, and the record count appears in the statistics bar.

Study view during active record generation showing progress indicator and Cancel button

Canceling Generation​

If you need to stop a generation that is in progress:

  • Click the Cancel button that appears during generation.

Generation stops and the study unlocks so you can modify parameters.

After Generation​

Once generation completes:

  • The study is locked -- parameter fields become read-only to protect the integrity of the generated data.
  • The Unlock button replaces the Run button. See Unlock Study to re-enable editing.
  • The statistics bar displays the record count.
  • The activity bar displays "Generation Complete".
  • The Generator is running indicator disappears.

Study view after generation showing the Unlock button, record count, and Export button

tip

You can export the generated records to CSV or find a specific record by date after generation completes.