Nine sounding rockets [carrying experiments from Denmark, Germany, Great Britain and Holland] were launched by ESRO between 15 and 20 May, 1966 from a temporary range established by the Organisation near Karystos on the island Euboea in Greece; the site was specifically chosen with reference to the path of the eclipse.
This ESRO production gives coverage of the campaign, the object of which was to measure the changes in those parts of the solar radiation which can only be measured from above the atmosphere, during the almost total eclipse of the Sun, and also to measure associated ionospheric phenomena. Assembly and testing of equipment is included in the footage.

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