Viking was Sweden's first satellite, aimed at monitoring the interaction of the solar with with the Earth's magnetosphere, and the resulting behaviour of the aurora borealis. The satellite hosted a variety of instruments. The datum held by the UK Solar System Data Centre are ion spectrograms from the V-3 instrument.

This dataset collection contains plots and summary plots of hot plasma spectrograms from the Swedish mission Viking. Datum covers 1986 in slide format.

Spectrogram slides are available from 1986-06-02 to 1986-10-01.
Lower resolution summary plots are available from 1986-04-24 to 1986-11-26.