Posted by Michael Galloy | June 30, 2026 | Useful Resources

The Mauna Loa Solar Observatory (MLSO) is happy to announce the initial release of a web service API for searching and downloading our data and invites the community to use it for programmatic access to our data. Currently data from the K-Coronagraph (KCor) and Upgraded COronal Multi-channel Polarimeter (UCoMP) are available, with data from additional instruments to be added in the future. Various search filters based on date/time and instrument specific attributes are supported, including filters to retrieve data on a regular time cadence, e.g., one file of a specific type every day, every hour, etc.

Convenience bindings for Python, IDL, and the command-line are provided, though the API is usable from any language with the ability to make HTTP requests, including a web browser, curl, or wget. The source code for the clients is available via GitHub.

For more information see the MLSO API web page or the documentation.


MLSO team
Michael Galloy ([email protected]), Tom Berger, Giuliana de Toma, Joan Burkepile,
Don Kolinski, Ben Berkey