ESO Archive Frequently Asked Questions

CalSelector: How do I trigger the CalSelector tool, i.e. the association of science and calibrations?

By checking the “CalSelector” checkbox on the submit request page. Please note that, under certain circumstances, CalSelector behaves erratically on request that contain a mixture of science and non-science (e.g. acquisition images) files. We would strongly encourage you to include only science files in the query (e.g. by selecting Science as Category in the main query interface) and let CalSelector associate the other relevant files.