ITP66 was deployed on a 1.55 m thick icefloe in the Beaufort Sea on August 27, 2012 at 80° 12.7 N, 130° 2.3 W as part of the Beaufort Gyre Observing System (BGOS) during the JOIS 2010 cruise on the CCGS Louis S. St. Laurent. On the same icefloe, a Naval Postgraduate School Arctic Ocean Flux Buoy (AOFB), a US Army Cold Regions Research and Engineering Laboratory (CRREL) Ice Mass Balance Buoy (IMB), an autonomous atmospheric chemistry buoy (O-Buoy) and an Ice-Tethered Micro were also installed. The ITP includes a prototype MAVS current sensor and SBE-37 microcat fixed at 6 m depth and is operating on a pattern profiling schedule including 2 one-way profiles between 7 and 760 m depth each day.