Completed Missions Drift tracks showing completed ITP missions for sytems deployed from 2004-2006. Deployment locations (triangles), last profiles (crosses) and drift tracks of all ITPs deployed during IPY (2007 red, 2008 yellow). Deployment locations (triangles), last profiles (crosses) and drift tracks of all ITPs deployed in 2009 (red) and 2010 (yellow). Deployment locations (triangles), last profiles (crosses) and drift tracks of all ITPs deployed in 2011 (red) and 2012 (yellow). Deployment locations (triangles), last profiles (crosses) and drift tracks of all ITPs deployed in 2013 (red) and 2014 (yellow). Deployment locations (triangles), last profiles (crosses) and drift tracks of all ITPs deployed in 2015 (red) and 2016 (yellow). Deployment locations (triangles), last profiles (crosses) and drift tracks of all ITPs deployed in 2017 (red) and 2018 (yellow). Deployment locations (triangles), last profiles (crosses) and drift tracks of all ITPs deployed in 2019 (red).