The night of 10 April the automatic video-motion stations IMTN (Italian Meteor and TLE Network) in Ferrara (managed by Ferruccio Zanotti) and in San Lazzaro di Savena, Bologna (managed by Comitato Italiano per il Progetto Hessdalen - CIPH-SOSO) have recording in contemporary time a column sprite at 18h56m27s UT, as per our report (in italian) on our Blog News
http://ciph-soso.blogspot.com/2009/06/ancora-sullo-sprite-del-10-aprile.html
and our WebSite
http://www.ciph-soso.net/SOSO/TLE_Transient_Luminous_Events_2009.html
This allowed the triangulation for the event. It's one of the few triangulation cases of TLE, today available. In absolutely the first case in Italy.
regards
Renzo Cabassi
Smart Optical Sensors Observatory & IMTN
Titolo: SPRITE TRIANGULATION 
Gio Giu 11, 2009 6:48 pm