Data updated every 12 minutes. This is the result of an automatic process. As such, the following plots might be based on wrong data, such as magnetically polluted data, spikes, or data resulting from temporal malfunction of the acquisition system.
: Use of undefined constant year - assumed 'year' (this will throw an Error in a future version of PHP) in /var/www/html/php/geomagnetisme/j3_horta_variacio_actual.php
on line 15