Avelsta Guide Online NKE reader Open Avelsta

Importing logs

Import your sailing logs

BeginnerUpdated

Import NKE logs (.LOG, .nkz) into Avelsta step by step: choose the boat, drop several files, upload, background processing and end-of-import notification.

The essentials

  1. Click Import at the top right (or drop your files on the home screen of a new account).
  2. Choose the boat that recorded these logs (required).
  3. Drop your .LOG or .nkz files in the drop area, or click to pick them. Several files at once, up to 500 per upload.
  4. Keep the tab open during the upload (progress bar per file).
  5. Once the upload is over, the processing carries on on the server: you can close the window. A notification arrives at the end with the report.
The import panel: boat choice and drop area
The “Import logs” panel

Going further

During the upload

Each file goes straight from your browser to Avelsta’s storage. The panel shows “Uploading n / total” and the progress of each file.

Files being uploaded
Uploading the 25 logs of a sailing session

If the tab is closed or reloaded during the upload, the batch stays interrupted: nothing is processed until the import is finished. Open the panel again and click Finish the import with the files received, then upload the missing files again. A batch that is never finished is abandoned after 24 hours.

During the processing

The batch switches to Processing. Avelsta reads each file, rebuilds the boat’s timeline, detects the time spent at the dock, then creates or updates the sessions. The steps are shown in Follow live: splitting into sessions, mark detection, building, finalising, computing the statistics.

Batch being processed in the import panel
The batch is processed on the server

Meanwhile, the Import button shows a counter of the imports in progress.

At the end

The batch switches to Done (or “Done with errors”) and shows its report: sessions created, updated or merged, duplicates, failed files or files to date. A notification sums up the result and links to the session created.

Report of a finished import
Import done: 1 session created

The file-by-file details are in My imports.

Importing logs that overlap an existing session

You can import more files covering a period already known (for example the logs of a second box): the data is merged into the boat’s timeline and the sessions concerned are updated, without duplicates. See How sessions are built.

Upload size

With an account, upload size is not limited; only the number of files is (500). Without an account, an upload is limited to 200 MB.

Frequently asked questions

How long does the processing take?

From a few seconds to a few minutes depending on the volume: a 24-hour sailing session (25 files) is ready in less than a minute. A batch of several hundred logs spread over months can take about twenty minutes.

Can I import the logs of several boats at once?

No: an upload goes to a single boat. Make one upload per boat.

Do I need to sort my files by sailing session?

No. Upload all your logs: Avelsta splits the sessions itself, based on stops and time at the dock.

See also

  • Supported log formats (NKE .LOG and .nkz)Avelsta accepts .nkz files from the NKE Processor HR and .LOG files (NMEA 0183) from the NKE Box USB Datalog WiFi datalogger. Data read and special cases.
  • Track an import and read its reportThe My imports page in Avelsta: upload history, state of each file, report (sessions created, duplicates, failures), retrying failures and dating a log without a date.
  • Import errors: causes and fixesWhat to do when Avelsta rejects an NKE log: unrecognised format, corrupted file, no NMEA sentence, no usable measurement, incomplete upload, log without a date.
  • How sessions are builtHow Avelsta automatically splits your logs into sailing sessions: 1 Hz timeline, time at the dock, GPS jumps, split after a 30-minute stop, updates and merges.