Last updated: March 6, 2026

Data details

Use Data Details to inspect what is stored for the active station and diagnose missing or inconsistent data.

Open Data Details

• On iOS, open Settings, then choose Data Details.
• On macOS, open the Inspector and choose Data.

Real Time section

• Generated At shows when the latest stored real-time snapshot was produced.
• Newest observation and Oldest observation show the real-time range currently stored.
• Observations shows how many real-time rows are stored.
• Metrics lists the real-time metrics currently available for the active station.

Historical section

• Last sync date shows when historical sync last completed for this station.
• Newest observation and Oldest observation show the stored historical range.
• Observations expands to show raw row count and day/month/year summary counts.
• Total metrics shows how many historical metric types are present.
• Missing observations estimates gaps based on the expected archive interval.

A non-zero missing-observations count usually means some expected intervals were not received yet or have not been downloaded.

Database section

• File Name shows the current station database package (.wfdb).
• Database size shows the main database size.
• WAL size shows pending write-ahead-log data.

On macOS, click File Name to reveal the database package in Finder.

When to use Data Details

• Verify whether empty charts are caused by missing data or unavailable metrics.
• Confirm imports added rows by checking counts and newest timestamps.
• Compare station state across devices when values look inconsistent.

If values look out of date, run Download observations and Recalculate Summaries in Data maintenance.