Sodankylä Geophysical Observatory
SGO has multiple different all-sky imagers and guest instruments at Sodankyä, see Instruments page for more details. Here you find quick-look data of SGO instruments to study available data from different imagers. Select the instrument from the top menu to browse keograms of the available data.The SGO All-Sky camera data can be requested via SGO Contact page. Note: the iCCD and emCCD datasets (bistatic with FMI emCCD camera) are available also at MIRACLE database.
The amount of the aurora nights (green bar) is visually studied from time lapse movies made for every observation night. The night with any visible aurora in the view is calculated as an aurora night. The optical season starts around 20 August and end around 20 April. Aurora rate for Aug and Mar is calculated against observation nights.
The white bards presents polar day over the summer months (May-Jul) north from the Arctic Circle, when the auroras are not optically visible due to Sun light.
The yellow spots present montly average of the daily geomagnetic activity index Ak.
Last modified: 2021-11-02, 13:15:47.