Observations are presented of data taken during a 3-h interval in which five clear substorm onsets/intensifications took place. During this interval ground-based data from the EISCAT incoherent scatter radar. a digital CCD all sky camera. and an extensive array of magnetometers were recorded. https://www.spidertattooz.com/OPI-GelColor-Magnet-Tool-Mauvnetic-Poles-0-5-oz-p21159/