Update 5th April 2022: callsign corrected. EG2SIA (not EA2SIA)
This is a special activity of the University of Zaragoza (Spain) and URE to teach university students the possibilities of Amateur Radio communications via satellite.
Special callsign EG2SIA at IN91 locator, between 6-8 April 2022, from 08:00 to 12:00 UTC, QRG: 10489.690 Mhz (+5 +10 if busy). "We appreciate your presence".